WorldWideScience

Sample records for monolingual shift-reduce parsing

  1. Parsing Schemata

    NARCIS (Netherlands)

    Sikkel, Nicolaas

    1993-01-01

    Parsing schemata provide a general framework for specication, analysis and comparison of (sequential and/or parallel) parsing algorithms. A grammar specifies implicitly what the valid parses of a sentence are; a parsing algorithm specifies explicitly how to compute these. Parsing schemata form a wel

  2. Dependency Parsing

    CERN Document Server

    Kubler, Sandra; Nivre, Joakim

    2009-01-01

    Dependency-based methods for syntactic parsing have become increasingly popular in natural language processing in recent years. This book gives a thorough introduction to the methods that are most widely used today. After an introduction to dependency grammar and dependency parsing, followed by a formal characterization of the dependency parsing problem, the book surveys the three major classes of parsing models that are in current use: transition-based, graph-based, and grammar-based models. It continues with a chapter on evaluation and one on the comparison of different methods, and it close

  3. Structural parsing

    NARCIS (Netherlands)

    Hoede, C.; Zhang, Lei

    2000-01-01

    Parsing is an essential part of natural language processing. In this paper, structural parsing, which is based on the theory of knowledge graphs, is introduced. Under consideration of the semantic and syntactic features of natural language, both semantic and syntactic word graphs are formed. Grammar

  4. Learning Parse and Translation Decisions From Examples With Rich Context

    CERN Document Server

    Hermjakob, U; Hermjakob, Ulf; Mooney, Raymond J.

    1997-01-01

    We present a knowledge and context-based system for parsing and translating natural language and evaluate it on sentences from the Wall Street Journal. Applying machine learning techniques, the system uses parse action examples acquired under supervision to generate a deterministic shift-reduce parser in the form of a decision structure. It relies heavily on context, as encoded in features which describe the morphological, syntactic, semantic and other aspects of a given parse state.

  5. LR-PARSING DERIVED

    NARCIS (Netherlands)

    Hesselink, Wim H.

    1992-01-01

    The LR(k)-parsing algorithm is derived, i.e., presented and proved as an interplay between program development and parsing theory. The program development uses invariants and the new concept of weakest angelic precondition. The parsing theory involved relates rightmost derivability to three other tr

  6. Relational-realizational parsing

    NARCIS (Netherlands)

    Tsarfaty, R.; Sima'an, K.

    2008-01-01

    State-of-the-art statistical parsing models applied to free word-order languages tend to underperform compared to, e.g., parsing English. Constituency-based models often fail to capture generalizations that cannot be stated in structural terms, and dependency-based models employ a 'single-head' assu

  7. Probabilistic parsing strategies

    NARCIS (Netherlands)

    Nederhof, Mark-Jan; Satta, Giorgio

    We present new results on the relation between purely symbolic context-free parsing strategies and their probabilistic counterparts. Such parsing strategies are seen as constructions of push-down devices from grammars. We show that preservation of probability distribution is possible under two

  8. Parsing Inside-Out

    CERN Document Server

    Goodman, J

    1998-01-01

    The inside-outside probabilities are typically used for reestimating Probabilistic Context Free Grammars (PCFGs), just as the forward-backward probabilities are typically used for reestimating HMMs. I show several novel uses, including improving parser accuracy by matching parsing algorithms to evaluation criteria; speeding up DOP parsing by 500 times; and 30 times faster PCFG thresholding at a given accuracy level. I also give an elegant, state-of-the-art grammar formalism, which can be used to compute inside-outside probabilities; and a parser description formalism, which makes it easy to derive inside-outside formulas and many others.

  9. Learning Parse and Translation Decisions From Examples With Rich Context addendum

    CERN Document Server

    Hermjakob, U

    1997-01-01

    We propose a system for parsing and translating natural language that learns from examples and uses some background knowledge. As our parsing model we choose a deterministic shift-reduce type parser that integrates part-of-speech tagging and syntactic and semantic processing. Applying machine learning techniques, the system uses parse action examples acquired under supervision to generate a parser in the form of a decision structure, a generalization of decision trees. To learn good parsing and translation decisions, our system relies heavily on context, as encoded in currently 205 features describing the morphological, syntactical and semantical aspects of a given parse state. Compared with recent probabilistic systems that were trained on 40,000 sentences, our system relies on more background knowledge and a deeper analysis, but radically fewer examples, currently 256 sentences. We test our parser on lexically limited sentences from the Wall Street Journal and achieve accuracy rates of 89.8% for labeled pre...

  10. Memory-Based Shallow Parsing

    NARCIS (Netherlands)

    Tjong Kim Sang, E.F.

    2002-01-01

    We present memory-based learning approaches to shallow parsing and apply these to five tasks: base noun phrase identification, arbitrary base phrase recognition, clause detection, noun phrase parsing and full parsing. We use feature selection techniques and system combination methods for improving t

  11. Memory-Based Shallow Parsing

    NARCIS (Netherlands)

    Tjong Kim Sang, E.F.

    2002-01-01

    We present memory-based learning approaches to shallow parsing and apply these to five tasks: base noun phrase identification, arbitrary base phrase recognition, clause detection, noun phrase parsing and full parsing. We use feature selection techniques and system combination methods for improving

  12. Faster Scannerless GLR parsing

    NARCIS (Netherlands)

    Vinju, J.J.; Economopoulos, G.R.; Klint, P.

    2008-01-01

    Analysis and renovation of large software portfolios requires syntax analysis of multiple, usually embedded, languages and this is beyond the capabilities of many standard parsing techniques. The traditional separation between lexer and parser falls short due to the limitations of tokenization b

  13. Faster scannerless GLR parsing

    NARCIS (Netherlands)

    Economopoulos, G.R.; Klint, P.; Vinju, J.J.; Moor, O. de; Schwartzbach, M.I.

    2009-01-01

    Analysis and renovation of large software portfolios requires syntax analysis of multiple, usually embedded, languages and this is beyond the capabilities of many standard parsing techniques. The traditional separation between lexer and parser falls short due to the limitations of tokenization based

  14. Natural language parsing in a hybrid connectionist-symbolic architecture

    Science.gov (United States)

    Mueller, Adrian; Zell, Andreas

    1991-03-01

    Most connectionist parsers either cannot guarantee the correctness of their derivations or have to simulate a serial flow of control. In the first case, users have to restrict the tasks (e.g. parse less complex or shorter sentences) of the parser or they need to believe in the soundness of the result. In the second case, the resulting network has lost most of its attractivity because seriality needs to be hard-coded into the structure of the net. We here present a hybrid symbolic connectionist parser, which was designed to fulfill the following goals: (1) parsing of sentences without length restriction, (2) soundness and completeness for any context-free grammar, and (3) learning the applicability of parsing rules with a neural network. Our hybrid architecture consists of a serial parsing algorithm and a trainable net. BrainC (Backtracking and Backpropagation in C) combines the well known shift-reduce parsing technique with backtracking with a backpropagation network to learn and represent the typical properties of the trained natural language grammars. The system has been implemented as a subsystem of the Rochester Connectionist Simulator (RCS) on SUN- Workstations and was tested with several grammars for English and German. We discuss how BrainC reached its design goals and what results we observed.

  15. Story Parsing Grammar

    Institute of Scientific and Technical Information of China (English)

    张松懋

    1994-01-01

    Story understanding is one of the important branches of natural language understanding research in AI techniques.A new approach to story understanding is proposed in this paper.The so-called Story Parsing Grammar (SPG) is used to represent the story abstracting processes with different degrees in story understanding,and the story understanding process is converted to the storyn recognizing process done by the syntactic parser of SPG.This kind of story understanding is called story parsing.In this paper,firstly,a survey of story understanding research is given.Secondly,by the classification of various kinds of story structures,the so-called Case Frame Forest (CFF) is proposed to represent the superficial meaning of story.Based on CFF,a high-dimen-sional grammar,called Forest Grammar (FG),is defined.Furthermore,SPG is defined as a subclass of context-sensitive FG.Considering the context-sensitivity of story content,a type of context-sensitive derivation is defined in the definition of SPG.Lastly,data about runtime efficiency of the syntactic parsing algorithm of weak precedence SPG,a subclass of SPG,are given and analysed.

  16. Memory-Based Shallow Parsing

    OpenAIRE

    Sang, Erik F. Tjong Kim

    2002-01-01

    We present memory-based learning approaches to shallow parsing and apply these to five tasks: base noun phrase identification, arbitrary base phrase recognition, clause detection, noun phrase parsing and full parsing. We use feature selection techniques and system combination methods for improving the performance of the memory-based learner. Our approach is evaluated on standard data sets and the results are compared with that of other systems. This reveals that our approach works well for ba...

  17. Weak Precedence Story Parsing Grammar

    Institute of Scientific and Technical Information of China (English)

    张松懋

    1995-01-01

    Story understanding is one of the important branches of natural language understanding research in AI techniques.The story understanding approach based on Story Parsing Grammar (SPG) involves that SPG is used to represent different abstracting processes of stories with different levels in story understanding and that the story understanding process is converted to the recognition process of stories using the syntactic parser of SPG.This kind of story understanding is called story parsing.In this paper,firstly a subclass of SPG,called Weak Precedence SPG(WPSPG),is defined.Afterwards the syntactic parsing algorithm of WPSPG is studied.An example of story parsing is also given.

  18. Connectionist natural language parsing with BrainC

    Science.gov (United States)

    Mueller, Adrian; Zell, Andreas

    1991-08-01

    A close examination of pure neural parsers shows that they either could not guarantee the correctness of their derivations or had to hard-code seriality into the structure of the net. The authors therefore decided to use a hybrid architecture, consisting of a serial parsing algorithm and a trainable net. The system fulfills the following design goals: (1) parsing of sentences without length restriction, (2) soundness and completeness for any context-free language, and (3) learning the applicability of parsing rules with a neural network to increase the efficiency of the whole system. BrainC (backtracktacking and backpropagation in C) combines the well- known shift-reduce parsing technique with backtracking with a backpropagation network to learn and represent typical structures of the trained natural language grammars. The system has been implemented as a subsystem of the Rochester Connectionist Simulator (RCS) on SUN workstations and was tested with several grammars for English and German. The design of the system and then the results are discussed.

  19. Heuristics and Parse Ranking

    CERN Document Server

    Srinivas, B; Kulick, S N; Doran, Christine; Kulick, Seth

    1995-01-01

    There are currently two philosophies for building grammars and parsers -- Statistically induced grammars and Wide-coverage grammars. One way to combine the strengths of both approaches is to have a wide-coverage grammar with a heuristic component which is domain independent but whose contribution is tuned to particular domains. In this paper, we discuss a three-stage approach to disambiguation in the context of a lexicalized grammar, using a variety of domain independent heuristic techniques. We present a training algorithm which uses hand-bracketed treebank parses to set the weights of these heuristics. We compare the performance of our grammar against the performance of the IBM statistical grammar, using both untrained and trained weights for the heuristics.

  20. Parsing Heterogeneous Striatal Activity

    Directory of Open Access Journals (Sweden)

    Kae Nakamura

    2017-05-01

    Full Text Available The striatum is an input channel of the basal ganglia and is well known to be involved in reward-based decision making and learning. At the macroscopic level, the striatum has been postulated to contain parallel functional modules, each of which includes neurons that perform similar computations to support selection of appropriate actions for different task contexts. At the single-neuron level, however, recent studies in monkeys and rodents have revealed heterogeneity in neuronal activity even within restricted modules of the striatum. Looking for generality in the complex striatal activity patterns, here we briefly survey several types of striatal activity, focusing on their usefulness for mediating behaviors. In particular, we focus on two types of behavioral tasks: reward-based tasks that use salient sensory cues and manipulate outcomes associated with the cues; and perceptual decision tasks that manipulate the quality of noisy sensory cues and associate all correct decisions with the same outcome. Guided by previous insights on the modular organization and general selection-related functions of the basal ganglia, we relate striatal activity patterns on these tasks to two types of computations: implementation of selection and evaluation. We suggest that a parsing with the selection/evaluation categories encourages a focus on the functional commonalities revealed by studies with different animal models and behavioral tasks, instead of a focus on aspects of striatal activity that may be specific to a particular task setting. We then highlight several questions in the selection-evaluation framework for future explorations.

  1. Bit-coded regular expression parsing

    DEFF Research Database (Denmark)

    Nielsen, Lasse; Henglein, Fritz

    2011-01-01

    Regular expression parsing is the problem of producing a parse tree of a string for a given regular expression. We show that a compact bit representation of a parse tree can be produced efficiently, in time linear in the product of input string size and regular expression size, by simplifying...... the DFA-based parsing algorithm due to Dub ´e and Feeley to emit the bits of the bit representation without explicitly materializing the parse tree itself. We furthermore show that Frisch and Cardelli’s greedy regular expression parsing algorithm can be straightforwardly modified to produce bit codings...

  2. Do bilinguals outperform monolinguals?

    Directory of Open Access Journals (Sweden)

    Sejdi Sejdiu

    2016-11-01

    Full Text Available The relationship between second dialect acquisition and the psychological capacity of the learner is still a divisive topic that generates a lot of debate. A few researchers contend that the acquisition of the second dialect tends to improve the cognitive abilities in various individuals, but at the same time it could hinder the same abilities in other people. Currently, immersion is a common occurrence in some countries. In the recent past, it has significantly increased in its popularity, which has caused parents, professionals, and researchers to question whether second language acquisition has a positive impact on cognitive development, encompassing psychological ability. In rundown, the above might decide to comprehend the effects of using a second language based on the literal aptitudes connected with the native language. The issue of bilingualism was seen as a disadvantage until recently because of two languages being present which would hinder or delay the development of languages. However, recent studies have proven that bilinguals outperform monolinguals in tasks which require more attention.

  3. Concurrent Lexicalized Dependency Parsing The ParseTalk Model

    CERN Document Server

    Broeker, N; Schacht, S; Broeker, Norbert; Hahn, Udo; Schacht, Susanne

    1994-01-01

    A grammar model for concurrent, object-oriented natural language parsing is introduced. Complete lexical distribution of grammatical knowledge is achieved building upon the head-oriented notions of valency and dependency, while inheritance mechanisms are used to capture lexical generalizations. The underlying concurrent computation model relies upon the actor paradigm. We consider message passing protocols for establishing dependency relations and ambiguity handling.

  4. Parsing the Practice of Teaching

    Science.gov (United States)

    Kennedy, Mary

    2016-01-01

    Teacher education programs typically teach novices about one part of teaching at a time. We might offer courses on different topics--cultural foundations, learning theory, or classroom management--or we may parse teaching practice itself into a set of discrete techniques, such as core teaching practices, that can be taught individually. Missing…

  5. Prosodic form and parsing commitments.

    Science.gov (United States)

    Watt, S M; Murray, W S

    1996-03-01

    This paper examines the question of whether there are effects of prosody on the syntactic parsing of temporarily ambiguous sentences containing complement verbs. It reports the results of five experiments employing cross-modal response tasks where the visually presented target word was either an ¿appropriate' or an ¿inappropriate' continuation in terms of the prosodic form of the preceeding auditory sentence fragment. Two experiments employing cross-modal naming only showed indications of sensitivity to syntactic and appropriateness manipulations when coupled with a simultaneous appropriateness judgment task. In contrast, the experiments employing cross-modal lexical decision showed greater sensitivity to syntactic and appropriateness effects. However, while the results from these studies replicated our earlier auditory parsing results and provided support for the suggestion that there are differences in visual and auditory parsing processes and for a ¿constituent-based, ' ¿minimal commitment' type auditory parser, none of the studies demonstrated an effect of prosodic form on the parsing process.

  6. Emergent Parsing and Generation with Generalized Chart

    CERN Document Server

    Koiti, H

    1994-01-01

    A new, flexible inference method for Horn logic program is proposed, which is a drastic generalization of chart parsing, partial instantiations of clauses in a program roughly corresponding to arcs in a chart. Chart-like parsing and semantic-head-driven generation emerge from this method. With a parsimonious instantiation scheme for ambiguity packing, the parsing complexity reduces to that of standard chart-based algorithms.

  7. Rich statistical parsing and literary language

    NARCIS (Netherlands)

    van Cranenburgh, A.W.

    2016-01-01

    This thesis studies parsing and literature with the Data-Oriented Parsing framework, which assumes that chunks of previous experience can be exploited to analyze new sentences. As chunks we consider syntactic tree fragments. After presenting a method to efficiently extract such fragments from treeba

  8. A Sound Abstraction of the Parsing Problem

    DEFF Research Database (Denmark)

    Mödersheim, Sebastian Alexander; Katsoris, Georgios

    2014-01-01

    -based formats. We define two reasonable properties for a set of formats used in a protocol suite. First, each format should be un-ambiguous: any string can be parsed in at most one way. Second, the formats should be pair wise disjoint: a string can be parsed as at most one of the formats. We show how to easily...

  9. Method for endobronchial video parsing

    Science.gov (United States)

    Byrnes, Patrick D.; Higgins, William E.

    2016-03-01

    Endoscopic examination of the lungs during bronchoscopy produces a considerable amount of endobronchial video. A physician uses the video stream as a guide to navigate the airway tree for various purposes such as general airway examinations, collecting tissue samples, or administering disease treatment. Aside from its intraoperative utility, the recorded video provides high-resolution detail of the airway mucosal surfaces and a record of the endoscopic procedure. Unfortunately, due to a lack of robust automatic video-analysis methods to summarize this immense data source, it is essentially discarded after the procedure. To address this problem, we present a fully-automatic method for parsing endobronchial video for the purpose of summarization. Endoscopic- shot segmentation is first performed to parse the video sequence into structurally similar groups according to a geometric model. Bronchoscope-motion analysis then identifies motion sequences performed during bronchoscopy and extracts relevant information. Finally, representative key frames are selected based on the derived motion information to present a drastically reduced summary of the processed video. The potential of our method is demonstrated on four endobronchial video sequences from both phantom and human data. Preliminary tests show that, on average, our method reduces the number of frames required to represent an input video sequence by approximately 96% and consistently selects salient key frames appropriately distributed throughout the video sequence, enabling quick and accurate post-operative review of the endoscopic examination.

  10. Evaluating Parsing Schemes with Entropy Indicators

    CERN Document Server

    Lyon, C; Lyon, Caroline; Brown, Stephen

    1997-01-01

    This paper introduces an objective metric for evaluating a parsing scheme. It is based on Shannon's original work with letter sequences, which can be extended to part-of-speech tag sequences. It is shown that this regular language is an inadequate model for natural language, but a representation is used that models language slightly higher in the Chomsky hierarchy. We show how the entropy of parsed and unparsed sentences can be measured. If the entropy of the parsed sentence is lower, this indicates that some of the structure of the language has been captured. We apply this entropy indicator to support one particular parsing scheme that effects a top down segmentation. This approach could be used to decompose the parsing task into computationally more tractable subtasks. It also lends itself to the extraction of predicate/argument structure.

  11. A Robust Parsing Algorithm For Link Grammars

    CERN Document Server

    Grinberg, D; Sleator, D; Grinberg, Dennis; Lafferty, John; Sleator, Daniel

    1995-01-01

    In this paper we present a robust parsing algorithm based on the link grammar formalism for parsing natural languages. Our algorithm is a natural extension of the original dynamic programming recognition algorithm which recursively counts the number of linkages between two words in the input sentence. The modified algorithm uses the notion of a null link in order to allow a connection between any pair of adjacent words, regardless of their dictionary definitions. The algorithm proceeds by making three dynamic programming passes. In the first pass, the input is parsed using the original algorithm which enforces the constraints on links to ensure grammaticality. In the second pass, the total cost of each substring of words is computed, where cost is determined by the number of null links necessary to parse the substring. The final pass counts the total number of parses with minimal cost. All of the original pruning techniques have natural counterparts in the robust algorithm. When used together with memoization...

  12. Parsing syllables modeling OT computationally

    CERN Document Server

    Hammond, M

    1997-01-01

    In this paper, I propose to implement syllabification in OT as a parser. I propose several innovations that result in a finite and small candidate set. The candidate set problem is handled with several moves: i) MAX and DEP violations are not hypothesized by the parser, ii) candidates are encoded locally, and iii) EVAL is applied constraint by constraint. The parser I propose is implemented in Prolog. It has a number of desirable consequences. First, it runs and thus provides an existence proof that syllabification can be implemented in OT. There are a number of other desirable consequences as well. First, constraints are implemented as finite-state transducers. Second, the parser makes several interesting claims about the phonological properties of so-called nonrecoverable insertions and deletions. Third, the implementation suggests some particular reformulations of some of the benchmark constraints in the OT arsenal, e.g. *COMPLEX, PARSE, ONSET, and NOCODA.

  13. Two-pass greedy regular expression parsing

    DEFF Research Database (Denmark)

    Grathwohl, Niels Bjørn Bugge; Henglein, Fritz; Nielsen, Lasse;

    2013-01-01

    We present new algorithms for producing greedy parses for regular expressions (REs) in a semi-streaming fashion. Our lean-log algorithm executes in time O(mn) for REs of size m and input strings of size n and outputs a compact bit-coded parse tree representation. It improves on previous algorithms......-based prototype indicates that the superior performance of our lean-log algorithm can also be observed in practice; it is also surprisingly competitive with RE tools not performing full parsing, such as Grep....

  14. Principles and Implementation of Deductive Parsing

    CERN Document Server

    Shieber, S M; Pereira, F C N; Shieber, Stuart M.; Schabes, Yves; Pereira, Fernando C. N.

    1994-01-01

    We present a system for generating parsers based directly on the metaphor of parsing as deduction. Parsing algorithms can be represented directly as deduction systems, and a single deduction engine can interpret such deduction systems so as to implement the corresponding parser. The method generalizes easily to parsers for augmented phrase structure formalisms, such as definite-clause grammars and other logic grammar formalisms, and has been used for rapid prototyping of parsing algorithms for a variety of formalisms including variants of tree-adjoining grammars, categorial grammars, and lexicalized context-free grammars.

  15. Statistical Decision-Tree Models for Parsing

    CERN Document Server

    Magerman, D M

    1995-01-01

    Syntactic natural language parsers have shown themselves to be inadequate for processing highly-ambiguous large-vocabulary text, as is evidenced by their poor performance on domains like the Wall Street Journal, and by the movement away from parsing-based approaches to text-processing in general. In this paper, I describe SPATTER, a statistical parser based on decision-tree learning techniques which constructs a complete parse for every sentence and achieves accuracy rates far better than any published result. This work is based on the following premises: (1) grammars are too complex and detailed to develop manually for most interesting domains; (2) parsing models must rely heavily on lexical and contextual information to analyze sentences accurately; and (3) existing {$n$}-gram modeling techniques are inadequate for parsing models. In experiments comparing SPATTER with IBM's computer manuals parser, SPATTER significantly outperforms the grammar-based parser. Evaluating SPATTER against the Penn Treebank Wall ...

  16. Efficient Algorithms for Parsing the DOP Model

    CERN Document Server

    Goodman, J

    1996-01-01

    Excellent results have been reported for Data-Oriented Parsing (DOP) of natural language texts (Bod, 1993). Unfortunately, existing algorithms are both computationally intensive and difficult to implement. Previous algorithms are expensive due to two factors: the exponential number of rules that must be generated and the use of a Monte Carlo parsing algorithm. In this paper we solve the first problem by a novel reduction of the DOP model to a small, equivalent probabilistic context-free grammar. We solve the second problem by a novel deterministic parsing strategy that maximizes the expected number of correct constituents, rather than the probability of a correct parse tree. Using the optimizations, experiments yield a 97% crossing brackets rate and 88% zero crossing brackets rate. This differs significantly from the results reported by Bod, and is comparable to results from a duplication of Pereira and Schabes's (1992) experiment on the same data. We show that Bod's results are at least partially due to an e...

  17. Parsing of Myanmar sentences with function tagging

    CERN Document Server

    Thant, Win Win; Thein, Ni Lar

    2012-01-01

    This paper describes the use of Naive Bayes to address the task of assigning function tags and context free grammar (CFG) to parse Myanmar sentences. Part of the challenge of statistical function tagging for Myanmar sentences comes from the fact that Myanmar has free-phrase-order and a complex morphological system. Function tagging is a pre-processing step for parsing. In the task of function tagging, we use the functional annotated corpus and tag Myanmar sentences with correct segmentation, POS (part-of-speech) tagging and chunking information. We propose Myanmar grammar rules and apply context free grammar (CFG) to find out the parse tree of function tagged Myanmar sentences. Experiments show that our analysis achieves a good result with parsing of simple sentences and three types of complex sentences.

  18. Context-free parsing with connectionist networks

    Science.gov (United States)

    Fanty, M. A.

    1986-08-01

    This paper presents a simple algorithm which converts any context-free grammar into a connectionist network which parses strings (of arbitrary but fixed maximum length) in the language defined by that grammar. The network is fast, O(n), and deterministicd. It consists of binary units which compute a simple function of their input. When the grammar is put in Chomsky normal form, O(n3) units needed to parse inputs of length up to n.

  19. SUBDIVIDING VERBS TO IMPROVE SYNTACTIC PARSING

    Institute of Scientific and Technical Information of China (English)

    Liu Ting; Ma Jinshan; Zhang Huipeng; Li Sheng

    2007-01-01

    This paper proposes a new way to improve the performance of dependency Parser:subdividing verbs according to their grammatical functions and integrating the information of verb subclasses into lexicalized parsing model.Firstly,the scheme of verb subdivision is described.Secondly,a maximum entropy model is presented to distinguish verb subclasses.Finally,a statistical parser is developed to evaluate the verb subdivision.Experimental results indicate that the use of verb subclasses has a good influence on parsing performance.

  20. Research on polarization imaging information parsing method

    Science.gov (United States)

    Yuan, Hongwu; Zhou, Pucheng; Wang, Xiaolong

    2016-11-01

    Polarization information parsing plays an important role in polarization imaging detection. This paper focus on the polarization information parsing method: Firstly, the general process of polarization information parsing is given, mainly including polarization image preprocessing, multiple polarization parameters calculation, polarization image fusion and polarization image tracking, etc.; And then the research achievements of the polarization information parsing method are presented, in terms of polarization image preprocessing, the polarization image registration method based on the maximum mutual information is designed. The experiment shows that this method can improve the precision of registration and be satisfied the need of polarization information parsing; In terms of multiple polarization parameters calculation, based on the omnidirectional polarization inversion model is built, a variety of polarization parameter images are obtained and the precision of inversion is to be improve obviously; In terms of polarization image fusion , using fuzzy integral and sparse representation, the multiple polarization parameters adaptive optimal fusion method is given, and the targets detection in complex scene is completed by using the clustering image segmentation algorithm based on fractal characters; In polarization image tracking, the average displacement polarization image characteristics of auxiliary particle filtering fusion tracking algorithm is put forward to achieve the smooth tracking of moving targets. Finally, the polarization information parsing method is applied to the polarization imaging detection of typical targets such as the camouflage target, the fog and latent fingerprints.

  1. Two Questions about Data-Oriented Parsing

    CERN Document Server

    Bod, R

    1996-01-01

    In this paper I present ongoing work on the data-oriented parsing (DOP) model. In previous work, DOP was tested on a cleaned-up set of analyzed part-of-speech strings from the Penn Treebank, achieving excellent test results. This left, however, two important questions unanswered: (1) how does DOP perform if tested on unedited data, and (2) how can DOP be used for parsing word strings that contain unknown words? This paper addresses these questions. We show that parse results on unedited data are worse than on cleaned-up data, although very competitive if compared to other models. As to the parsing of word strings, we show that the hardness of the problem does not so much depend on unknown words, but on previously unseen lexical categories of known words. We give a novel method for parsing these words by estimating the probabilities of unknown subtrees. The method is of general interest since it shows that good performance can be obtained without the use of a part-of-speech tagger. To the best of our knowledge...

  2. Two Language Models Using Chinese Semantic Parsing

    Institute of Scientific and Technical Information of China (English)

    LI Mingqin; WANG Xia; WANG Zuoying

    2006-01-01

    This paper presents two language models that utilize a Chinese semantic dependency parsing technique for speech recognition. The models are based on a representation of the Chinese semantic structure with dependency relations. A semantic dependency parser was described to automatically tag the semantic class for each word with 90.9% accuracy and parse the sentence semantic dependency structure with 75.8% accuracy. The Chinese semantic parsing technique was applied to structure language models to develop two language models, the semantic dependency model (SDM) and the headword trigram model (HTM). These language models were evaluated using Chinese speech recognition. The experiments show that both models outperform the word trigram model in terms of the Chinese character recognition error rate.

  3. Monolingual and Bilingual Children's Social Preferences for Monolingual and Bilingual Speakers

    Science.gov (United States)

    Byers-Heinlein, Krista; Behrend, Douglas A.; Said, Lyakout Mohamed; Girgis, Helana; Poulin-Dubois, Diane

    2017-01-01

    Past research has shown that young monolingual children exhibit language-based social biases: they prefer native language to foreign language speakers. The current research investigated how children's language preferences are influenced by their own bilingualism and by a speaker's bilingualism. Monolingual and bilingual 4- to 6-year-olds heard…

  4. Deep Human Parsing with Active Template Regression.

    Science.gov (United States)

    Liang, Xiaodan; Liu, Si; Shen, Xiaohui; Yang, Jianchao; Liu, Luoqi; Dong, Jian; Lin, Liang; Yan, Shuicheng

    2015-12-01

    In this work, the human parsing task, namely decomposing a human image into semantic fashion/body regions, is formulated as an active template regression (ATR) problem, where the normalized mask of each fashion/body item is expressed as the linear combination of the learned mask templates, and then morphed to a more precise mask with the active shape parameters, including position, scale and visibility of each semantic region. The mask template coefficients and the active shape parameters together can generate the human parsing results, and are thus called the structure outputs for human parsing. The deep Convolutional Neural Network (CNN) is utilized to build the end-to-end relation between the input human image and the structure outputs for human parsing. More specifically, the structure outputs are predicted by two separate networks. The first CNN network is with max-pooling, and designed to predict the template coefficients for each label mask, while the second CNN network is without max-pooling to preserve sensitivity to label mask position and accurately predict the active shape parameters. For a new image, the structure outputs of the two networks are fused to generate the probability of each label for each pixel, and super-pixel smoothing is finally used to refine the human parsing result. Comprehensive evaluations on a large dataset well demonstrate the significant superiority of the ATR framework over other state-of-the-arts for human parsing. In particular, the F1-score reaches 64.38 percent by our ATR framework, significantly higher than 44.76 percent based on the state-of-the-art algorithm [28].

  5. Parsing Combinatory Categorial Grammar with Answer Set Programming: Preliminary Report

    CERN Document Server

    Lierler, Yuliya

    2011-01-01

    Combinatory categorial grammar (CCG) is a grammar formalism used for natural language parsing. CCG assigns structured lexical categories to words and uses a small set of combinatory rules to combine these categories to parse a sentence. In this work we propose and implement a new approach to CCG parsing that relies on a prominent knowledge representation formalism, answer set programming (ASP) - a declarative programming paradigm. We formulate the task of CCG parsing as a planning problem and use an ASP computational tool to compute solutions that correspond to valid parses. Compared to other approaches, there is no need to implement a specific parsing algorithm using such a declarative method. Our approach aims at producing all semantically distinct parse trees for a given sentence. From this goal, normalization and efficiency issues arise, and we deal with them by combining and extending existing strategies. We have implemented a CCG parsing tool kit - AspCcgTk - that uses ASP as its main computational mean...

  6. Application development with Parse using iOS SDK

    CERN Document Server

    Birani, Bhanu

    2013-01-01

    A practical guide, featuring step-by-step instructions showing you how to use Parse iOS, and handle your data on cloud.If you are a developer who wants to build your applications instantly using Parse iOS as a back end application development, this book is ideal for you. This book will help you to understand Parse, featuring examples to help you get familiar with the concepts of Parse iOS.

  7. Context-Free Grammars: Covers, Normal Forms, and Parsing

    NARCIS (Netherlands)

    Nijholt, Anton

    1980-01-01

    This monograph develops a theory of grammatical covers, normal forms and parsing. Covers, formally defined in 1969, describe a relation between the sets of parses of two context-free grammars. If this relation exists then in a formal model of parsing it is possible to have, except for the output, fo

  8. Sequence distance via parsing complexity: Heartbeat signals

    Energy Technology Data Exchange (ETDEWEB)

    Degli Esposti, M. [Department of Mathematics, University of Bologna (Italy)], E-mail: desposti@dm.unibo.it; Farinelli, C. [Department of Mathematics, University of Bologna (Italy)], E-mail: farinelli@dm.unibo.it; Menconi, G. [Department of Mathematics, University of Bologna (Italy)], E-mail: menconi@dm.unibo.it

    2009-02-15

    We compare and discuss the use of different symbolic codings of electrocardiogram (ECG) signals in order to distinguish healthy patients from hospitalized ones. To this aim, we recall a parsing-based similarity distance and compare the performances of several methods of classification of data.

  9. Formal Foundations for Semi-parsing

    NARCIS (Netherlands)

    Zaytsev, V.; Demeyer, S.; Binkley, D.; Ricca, F.

    2014-01-01

    There exist many techniques for imprecise manipulation of source code (robust parsing, error repair, lexical analysis, etc), mostly relying on heuristic-based tolerance. Such techniques are rarely fully formalised and quite often idiosyncratic, which makes them very hard to compare with respect to

  10. Selective parsing to enhance SIP performance

    Institute of Scientific and Technical Information of China (English)

    CAO Yu-fei; LIAO Jian-xin; QI qi; ZHU Xiao-min

    2009-01-01

    The session initiation protocol (SIP) is used as the signaling protocol in the IP multimedia subsystem (IMS) and the signaling is becoming computing intensive comparing to the current telecommunication network. The SIP is a text-based protocol with characteristics of unordered and verbose headers, variable-size message, and case-insensitive keyword. It imposes challenges for an efficient message processing. The property of SIP elements being able to process SIP messages quickly is critical for the performance of IMS networks. This article investigates the performance of SIP message processed in SIP servers, mainly focusing on improving message parsing by introducing a method named selective parsing for SIP message (SP4SIP). By modeling and analyzing a SIP server with a tandem Jackson network, it is concluded that parsing messages is the bottleneck of a SIP server performance, i.e., it is the most processing intensive activity in the system. To validate the approach, it has been implemented in a high-performance SIP server in the authors' lab. The results show that selective parsing for SIP message can indeed reduce processing time.

  11. Image portion identification methods, image parsing methods, image parsing systems, and articles of manufacture

    Science.gov (United States)

    Lassahn, Gordon D.; Lancaster, Gregory D.; Apel, William A.; Thompson, Vicki S.

    2013-01-08

    Image portion identification methods, image parsing methods, image parsing systems, and articles of manufacture are described. According to one embodiment, an image portion identification method includes accessing data regarding an image depicting a plurality of biological substrates corresponding to at least one biological sample and indicating presence of at least one biological indicator within the biological sample and, using processing circuitry, automatically identifying a portion of the image depicting one of the biological substrates but not others of the biological substrates.

  12. Linear algorithm for lexicographic enumeration of CFG parse trees

    Institute of Scientific and Technical Information of China (English)

    DONG YunMei

    2009-01-01

    We study CFG parse tree enumeration in this paper. By dividing the set of all parse trees into infinite hierarchies according to height of parse tree, the hierarchical lexicographic order on the set of parse trees is established. Then grammar-based algorithms for counting and enumerating CFG parse trees in this order are presented. To generate a parse tree of height n, the time complexity is O(n). If τ is a lowest parse tree for its yield, then O(n) =O(‖τ‖ +1), where ‖τ‖ is the length of the sentence (yield) generated by τ. The sentence can be obtained as a by-product of the parse tree. To compute sentence from its parse tree (needn't be lowest one), the time complexity is O(node)+O(‖τ‖ +1), where node is the number of non-leaf nodes of parse tree τ. To generate both a complete lowest parse tree and its yield at the same time, the time complexity is O(‖τ‖ +1).

  13. Multilingual Researchers Internationalizing Monolingual English-Only Education through Post-Monolingual Research Methodologies

    OpenAIRE

    Michael Singh

    2017-01-01

    The argument advanced in this Special Issue of Education Sciences favors democratizing knowledge production and dissemination across the humanities and social sciences through the mainstreaming of multilingual researchers capabilities for theorizing using their full linguistic repertoire. An important contribution of the papers in this Special Issue is the promise that post-monolingual research methodology holds for collaborative projects among multilingual and monolingual researchers that ta...

  14. Lexical knowledge of monolingual and bilingual children

    NARCIS (Netherlands)

    Verhallen, M.; Schoonen, R.

    1993-01-01

    The aim of the present study is to gain insight into the lexico-semantic knowledge of bilingual children growing up in a second-language immersion environment. The research focus is on aspects of lexical knowledge that are relevant for school success. Data were obtained by asking 40 monolingual

  15. Monolingual Dictionary Use in an EFL Context

    Science.gov (United States)

    Ali, Holi Ibrahim Holi

    2012-01-01

    Caledonian College of Engineering, Oman, has been encouraging its students to use monolingual dictionaries rather than bilingual or bilingualized ones in classroom and during the exams. This policy with has been received with mixed feelings and attitudes. Therefore, this study strives to explore teachers' and students' attitudes about the use of…

  16. Parsing and Tagging of Bilingual Dictionary

    Science.gov (United States)

    2003-09-01

    searching written and spoken sources of multilingual information has increased tremendously. The involvement of multinational groups in activities...are available in English and French; we used the English topics for cross-language retrieval and the French topics 25 for a contrastive monolingual ...Resnik. The bible, truth, and multilingual ocr evaluation. In SPIE Conference on Document Recognition and Retrieval, pages 86–96, 1999. [14] E

  17. Parsing and Tagging of Binlingual Dictionary

    Science.gov (United States)

    2003-09-10

    the demand for tools capable searching written and spoken sources of multilingual information has increased tremendously. The involvement of...contrastive monolingual condition. This resulted in three sets of 40 French queries each and three corresponding sets of 40 English queries. As a...1990. [13] T. Kanungo and P. Resnik. The bible, truth, and multilingual ocr evaluation. In SPIE Conference on Document Recognition and Retrieval, pages

  18. Natural Language Parsing as Statistical Pattern Recognition

    CERN Document Server

    Magerman, D M

    1994-01-01

    Traditional natural language parsers are based on rewrite rule systems developed in an arduous, time-consuming manner by grammarians. A majority of the grammarian's efforts are devoted to the disambiguation process, first hypothesizing rules which dictate constituent categories and relationships among words in ambiguous sentences, and then seeking exceptions and corrections to these rules. In this work, I propose an automatic method for acquiring a statistical parser from a set of parsed sentences which takes advantage of some initial linguistic input, but avoids the pitfalls of the iterative and seemingly endless grammar development process. Based on distributionally-derived and linguistically-based features of language, this parser acquires a set of statistical decision trees which assign a probability distribution on the space of parse trees given the input sentence. These decision trees take advantage of significant amount of contextual information, potentially including all of the lexical information in ...

  19. Parsing of Spoken Language under Time Constraints

    CERN Document Server

    Menzel, W

    1994-01-01

    Spoken language applications in natural dialogue settings place serious requirements on the choice of processing architecture. Especially under adverse phonetic and acoustic conditions parsing procedures have to be developed which do not only analyse the incoming speech in a time-synchroneous and incremental manner, but which are able to schedule their resources according to the varying conditions of the recognition process. Depending on the actual degree of local ambiguity the parser has to select among the available constraints in order to narrow down the search space with as little effort as possible. A parsing approach based on constraint satisfaction techniques is discussed. It provides important characteristics of the desired real-time behaviour and attempts to mimic some of the attention focussing capabilities of the human speech comprehension mechanism.

  20. Telugu dependency parsing using different statistical parsers

    Directory of Open Access Journals (Sweden)

    B. Venkata Seshu Kumari

    2017-01-01

    Full Text Available In this paper we explore different statistical dependency parsers for parsing Telugu. We consider five popular dependency parsers namely, MaltParser, MSTParser, TurboParser, ZPar and Easy-First Parser. We experiment with different parser and feature settings and show the impact of different settings. We also provide a detailed analysis of the performance of all the parsers on major dependency labels. We report our results on test data of Telugu dependency treebank provided in the ICON 2010 tools contest on Indian languages dependency parsing. We obtain state-of-the art performance of 91.8% in unlabeled attachment score and 70.0% in labeled attachment score. To the best of our knowledge ours is the only work which explored all the five popular dependency parsers and compared the performance under different feature settings for Telugu.

  1. Three Generative, Lexicalised Models for Statistical Parsing

    CERN Document Server

    Collins, M

    1997-01-01

    In this paper we first propose a new statistical parsing model, which is a generative model of lexicalised context-free grammar. We then extend the model to include a probabilistic treatment of both subcategorisation and wh-movement. Results on Wall Street Journal text show that the parser performs at 88.1/87.5% constituent precision/recall, an average improvement of 2.3% over (Collins 96).

  2. Minimal Change and Bounded Incremental Parsing

    CERN Document Server

    Wiren, M

    1994-01-01

    Ideally, the time that an incremental algorithm uses to process a change should be a function of the size of the change rather than, say, the size of the entire current input. Based on a formalization of ``the set of things changed'' by an incremental modification, this paper investigates how and to what extent it is possible to give such a guarantee for a chart-based parsing framework and discusses the general utility of a minimality notion in incremental processing.

  3. A PRACTICAL PARSER WITH COMBINED PARSING TECHNIQUES

    Directory of Open Access Journals (Sweden)

    Donghui Wang

    2015-07-01

    Full Text Available This paper introduces a practical solution for dramatically enlarging the capabilities of an established parser, a task that presents substantial challenges. During the development of new procedures for SUDAAN®, a commercial statistical software package, we found the existing parser to be inadequate for new situations. Like many other parsers, the one in use could be characterized as a no-repair, noguesswork, and no-backtracking look-ahead left-to-right LALR(1 parser [1, p. 300]. This paper describes how the parser was enhanced to handle extra syntax for sophisticated mathematical and logical expressions. The new parser adds a noncanonical parsing technique, along with a Shunting-Yard-style algorithm and other techniques as a second step after the original canonical LALR [2], resulting in a powerful and efficient two-level parsing approach. Adding a second step to the successful one-step parser offered a way to preserve existing, well-tested capabilities while adding capabilities for parsing more complex syntax.

  4. Multisensory Contributions to Visual Motion Parsing

    Directory of Open Access Journals (Sweden)

    Salvador Soto-Faraco

    2011-10-01

    Full Text Available In humans, as well as most animal species, perception of object motion is critical to successful interaction with the surrounding environment. Yet, as the observer moves, the retinal projections of the various motion components add to each other and extracting accurate object motion becomes computationally challenging. Recent psychophysical studies have demonstrated that observers use a flow parsing mechanism to estimate and subtract self-motion from the optic flow field. We investigated whether concurrent acoustic cues for motion can facilitate visual flow parsing, thereby enhancing the detection of moving objects during simulated self-motion. Participants identified an object (the target that moved either forward or backward within a visual scene containing nine identical textured objects simulating forward observer translation. We found that spatially co-localized, directionally congruent, moving auditory stimuli enhanced object motion detection. Interestingly, subjects who performed poorly on the visual-only task benefited more from the addition of moving auditory stimuli. When auditory stimuli were not co-localized to the visual target, improvements in detection rates were weak. Taken together, these results suggest that the parsing object motion from self-motion induced optic flow can operate on multisensory object representations.

  5. Two-stage approach to full Chinese parsing

    Institute of Scientific and Technical Information of China (English)

    Cao Hailong; Zhao Tiejun; Yang Muyun; Li Sheng

    2005-01-01

    Natural language parsing is a task of great importance and extreme difficulty. In this paper, we present a full Chinese parsing system based on a two-stage approach. Rather than identifying all phrases by a uniform model, we utilize a divide and conquer strategy. We propose an effective and fast method based on Markov model to identify the base phrases. Then we make the first attempt to extend one of the best English parsing models i.e. the head-driven model to recognize Chinese complex phrases. Our two-stage approach is superior to the uniform approach in two aspects. First, it creates synergy between the Markov model and the head-driven model. Second, it reduces the complexity of full Chinese parsing and makes the parsing system space and time efficient. We evaluate our approach in PARSEVAL measures on the open test set, the parsing system performances at 87.53% precision, 87.95% recall.

  6. Multilingual Researchers Internationalizing Monolingual English-Only Education through Post-Monolingual Research Methodologies

    Directory of Open Access Journals (Sweden)

    Michael Singh

    2017-02-01

    Full Text Available The argument advanced in this Special Issue of Education Sciences favors democratizing knowledge production and dissemination across the humanities and social sciences through the mainstreaming of multilingual researchers capabilities for theorizing using their full linguistic repertoire. An important contribution of the papers in this Special Issue is the promise that post-monolingual research methodology holds for collaborative projects among multilingual and monolingual researchers that tap into intercultural divergences across languages. Together these papers give warrant to multilingual researchers, including Higher Degree Researchers develop their capabilities for theorizing using their full linguistic repertoire, an educational innovation that could be of immense benefit to scholars working predominantly monolingual universities. Through their thought provoking papers presented in this Special Issue, these researchers invites those working in the education sciences to seriously consider the potential benefits of multiplying the intellectual resources used for theorizing that is possible through activating, mobilizing and deploying researchers’ multilingual resources in knowledge production and dissemination.

  7. Does Incremental Positioning (Weight Shifts) Reduce Pressure Injuries in Critical Care Patients?

    Science.gov (United States)

    Krapfl, Lee Ann; Langin, Julia; Pike, Caitlin A; Pezzella, Patricia

    Incremental positioning or weight shifts are often suggested as an alternative to standard repositioning/turning in critical care patients deemed clinically unstable. This evidence-based report card reviews whether incremental positioning and/or weight shifts reduce hospital-acquired sacral/buttocks pressure injuries in critical care patients deemed too unstable to turn. A scoping review of the literature was conducted for studies related to repositioning and hospital-acquired pressure injuries in high-risk, critical care patients. The databases searched were CINAHL, EMBASE, and PubMed. Key words used in the search were "intensive care," "critical care," "pressure ulcer(s)," "pressure injury(ies)," "pressure sore(s)," "turn(s)," "turning," "shift(s)," "shifting," "position(s)," OR "positioning, cardiopulmonary support." The search yielded 183 articles. The search was then narrowed to those published within the past 10 years, yielding 35 citations. Following title and abstract review, 5 studies were identified that met inclusion criteria; an additional 13 articles were found by ancestry and hand-searching. No evidence was identified that incremental positioning and/or weight shifts reduce hospital-acquired sacral/buttocks pressure injuries in critical care patients deemed too unstable to turn. In addition, no evidence was found that incremental positioning and/or weight shifts affect interface pressure on the sacrum/buttocks. However, there was evidence that incremental positioning and/or weight shifts do impact gravitational equilibrium. Despite the paucity of evidence, incremental positioning and/or weight shifts are recommended as an intervention in critical care patients deemed too unstable to turn. Further research is needed to examine whether incremental positioning and/or weight shifts are effective in reducing pressure injuries in critical care patients.

  8. A Sound Abstraction of the Parsing Problem (Extended Version)

    DEFF Research Database (Denmark)

    Mödersheim, Sebastian Alexander; Katsoris, Georgios

    -based formats. We define two reasonable properties for a set of formats used in a protocol suite. First, each format should be un-ambiguous: any string can be parsed in at most one way. Second, the formats should be pairwise disjoint: a string can be parsed as at most one of the formats. We show how to easily...

  9. Restricted Parallelism in Object-Oriented Lexical Parsing

    CERN Document Server

    Neuhaus, P; Neuhaus, Peter; Hahn, Udo

    1996-01-01

    We present an approach to parallel natural language parsing which is based on a concurrent, object-oriented model of computation. A depth-first, yet incomplete parsing algorithm for a dependency grammar is specified and several restrictions on the degree of its parallelization are discussed.

  10. Semantic Mapping for Lexical Sparseness Reduction in Parsing

    NARCIS (Netherlands)

    Suster, Simon; van Noord, Gertjan

    2013-01-01

    Bilexical information is known to be helpful in parse disambiguation, but the benefit is limited because of lexical sparseness. An approach us- ing word classes can reduce sparseness and po- tentially leads to more accurate parsing. Firstly, we describe a method identifying the depen- dency types of

  11. Improved head-driven statistical models for natural language parsing

    Institute of Scientific and Technical Information of China (English)

    袁里驰

    2013-01-01

    Head-driven statistical models for natural language parsing are the most representative lexicalized syntactic parsing models, but they only utilize semantic dependency between words, and do not incorporate other semantic information such as semantic collocation and semantic category. Some improvements on this distinctive parser are presented. Firstly, "valency" is an essential semantic feature of words. Once the valency of word is determined, the collocation of the word is clear, and the sentence structure can be directly derived. Thus, a syntactic parsing model combining valence structure with semantic dependency is purposed on the base of head-driven statistical syntactic parsing models. Secondly, semantic role labeling(SRL) is very necessary for deep natural language processing. An integrated parsing approach is proposed to integrate semantic parsing into the syntactic parsing process. Experiments are conducted for the refined statistical parser. The results show that 87.12% precision and 85.04% recall are obtained, and F measure is improved by 5.68% compared with the head-driven parsing model introduced by Collins.

  12. Hierarchical Object Parsing from Noisy Point Clouds

    CERN Document Server

    Barbu, Adrian

    2011-01-01

    Object parsing and segmentation from point clouds are challenging tasks because the relevant data is available only as thin structures along object boundaries or other object features and is corrupted by large amounts of noise. One way to handle this kind of data is by employing shape models that can accurately follow the object boundaries. Popular models such as Active Shape and Active Appearance models lack the necessary flexibility for this task. While more flexible models such as Recursive Compositional Models have been proposed, this paper builds on the Active Shape models and makes three contributions. First, it presents a flexible, mid-entropy, hierarchical generative model of object shape and appearance in images. The input data is explained by an object parsing layer, which is a deformation of a hidden PCA shape model with Gaussian prior. Second, it presents a novel efficient inference algorithm that uses a set of informed data-driven proposals to initialize local searches for the hidden variables. T...

  13. A Divide-and-Conquer Strategy for Parsing

    CERN Document Server

    Shiuan, P L; Shiuan, Peh Li; Ann, Christopher Ting Hian

    1996-01-01

    In this paper, we propose a novel strategy which is designed to enhance the accuracy of the parser by simplifying complex sentences before parsing. This approach involves the separate parsing of the constituent sub-sentences within a complex sentence. To achieve that, the divide-and-conquer strategy first disambiguates the roles of the link words in the sentence and segments the sentence based on these roles. The separate parse trees of the segmented sub-sentences and the noun phrases within them are then synthesized to form the final parse. To evaluate the effects of this strategy on parsing, we compare the original performance of a dependency parser with the performance when it is enhanced with the divide-and-conquer strategy. When tested on 600 sentences of the IPSM'95 data sets, the enhanced parser saw a considerable error reduction of 21.2% in its accuracy.

  14. Receptive Vocabulary Differences in Monolingual and Bilingual Adults

    Science.gov (United States)

    Bialystok, Ellen; Luk, Gigi

    2012-01-01

    English receptive vocabulary scores from 797 monolingual and 808 bilingual participants between the ages of 17 and 89 years old were aggregated from 20 studies to compare standard scores across language groups. The distribution of scores was unimodal for both groups but the mean score was significantly different, with monolinguals obtaining higher…

  15. Language Learning from Inconsistent Input: Bilingual and Monolingual Toddlers Compared

    Science.gov (United States)

    Bree, Elise; Verhagen, Josje; Kerkhoff, Annemarie; Doedens, Willemijn; Unsworth, Sharon

    2017-01-01

    This study examines novel language learning from inconsistent input in monolingual and bilingual toddlers. We predicted an advantage for the bilingual toddlers on the basis of the structural sensitivity hypothesis. Monolingual and bilingual 24-month-olds performed two novel language learning experiments. The first contained consistent input, and…

  16. Beginning To Read among Monolingual and Bilingual Children.

    Science.gov (United States)

    Valadez, Concepcion M.; And Others

    This study examined language and reading ability in English monolinguals, Spanish monolinguals, and two bilingual groups at the beginning of kindergarten and at the beginning of first grade. The study also compared the family background of the children on home literacy, parent education, and the parents' aspirations for their children. In…

  17. Learning Recursive Segments for Discourse Parsing

    CERN Document Server

    Afantenos, Stergos; Muller, Philippe; Danlos, Laurence

    2010-01-01

    Automatically detecting discourse segments is an important preliminary step towards full discourse parsing. Previous research on discourse segmentation have relied on the assumption that elementary discourse units (EDUs) in a document always form a linear sequence (i.e., they can never be nested). Unfortunately, this assumption turns out to be too strong, for some theories of discourse like SDRT allows for nested discourse units. In this paper, we present a simple approach to discourse segmentation that is able to produce nested EDUs. Our approach builds on standard multi-class classification techniques combined with a simple repairing heuristic that enforces global coherence. Our system was developed and evaluated on the first round of annotations provided by the French Annodis project (an ongoing effort to create a discourse bank for French). Cross-validated on only 47 documents (1,445 EDUs), our system achieves encouraging performance results with an F-score of 73% for finding EDUs.

  18. Probabilistic Parsing Using Left Corner Language Models

    CERN Document Server

    Manning, C D; Manning, Christopher D.; Carpenter, Bob

    1997-01-01

    We introduce a novel parser based on a probabilistic version of a left-corner parser. The left-corner strategy is attractive because rule probabilities can be conditioned on both top-down goals and bottom-up derivations. We develop the underlying theory and explain how a grammar can be induced from analyzed data. We show that the left-corner approach provides an advantage over simple top-down probabilistic context-free grammars in parsing the Wall Street Journal using a grammar induced from the Penn Treebank. We also conclude that the Penn Treebank provides a fairly weak testbed due to the flatness of its bracketings and to the obvious overgeneration and undergeneration of its induced grammar.

  19. Monolingual accounting dictionaries for EFL text production

    Directory of Open Access Journals (Sweden)

    Sandro Nielsen

    2006-10-01

    Full Text Available Monolingual accounting dictionaries are important for producing financial reporting texts in English in an international setting, because of the lack of specialised bilingual dictionaries. As the intended user groups have different factual and linguistic competences, they require specific types of information. By identifying and analysing the users' factual and linguistic competences, user needs, use-situations and the stages involved in producing accounting texts in English as a foreign language, lexicographers will have a sound basis for designing the optimal English accounting dictionary for EFL text production. The monolingual accounting dictionary needs to include information about UK, US and international accounting terms, their grammatical properties, their potential for being combined with other words in collocations, phrases and sentences in order to meet user requirements. Data items that deal with these aspects are necessary for the international user group as they produce subject-field specific and register-specific texts in a foreign language, and the data items are relevant for the various stages in text production: draft writing, copyediting, stylistic editing and proofreading.

  20. Efficiency, Robustness, and Accuracy in Picky Chart Parsing

    CERN Document Server

    Magerman, D M; Magerman, David M.; Weir, Carl

    1994-01-01

    This paper describes Picky, a probabilistic agenda-based chart parsing algorithm which uses a technique called {\\em probabilistic prediction} to predict which grammar rules are likely to lead to an acceptable parse of the input. Using a suboptimal search method, Picky significantly reduces the number of edges produced by CKY-like chart parsing algorithms, while maintaining the robustness of pure bottom-up parsers and the accuracy of existing probabilistic parsers. Experiments using Picky demonstrate how probabilistic modelling can impact upon the efficiency, robustness and accuracy of a parser.

  1. From LL-regular to LL(1) grammars: Transformations, covers and parsing

    NARCIS (Netherlands)

    Nijholt, Anton

    1982-01-01

    In this paper it is shown that it is possible to transform any LL-regular grammar G into an LL(1) grammar G' in such a way that parsing G' is as good as parsing G. That is, a parse of a sentence of grammar G can be obtained with a simple string homomorphism from the parse of a corresponding sentence

  2. Explanation-based learning of data oriented parsing

    CERN Document Server

    Simaan, K

    1997-01-01

    This paper presents a new view of Explanation-Based Learning (EBL) of natural language parsing. Rather than employing EBL for specializing parsers by inferring new ones, this paper suggests employing EBL for learning how to reduce ambiguity only partially. The present method consists of an EBL algorithm for learning partial-parsers, and a parsing algorithm which combines partial-parsers with existing ``full-parsers". The learned partial-parsers, implementable as Cascades of Finite State Transducers (CFSTs), recognize and combine constituents efficiently, prohibiting spurious overgeneration. The parsing algorithm combines a learned partial-parser with a given full-parser such that the role of the full-parser is limited to combining the constituents, recognized by the partial-parser, and to recognizing unrecognized portions of the input sentence. Besides the reduction of the parse-space prior to disambiguation, the present method provides a way for refining existing disambiguation models that learn stochastic g...

  3. Learning Fault-tolerant Speech Parsing with SCREEN

    CERN Document Server

    Wermter, S; Wermter, Stefan; Weber, Volker

    1994-01-01

    This paper describes a new approach and a system SCREEN for fault-tolerant speech parsing. SCREEEN stands for Symbolic Connectionist Robust EnterprisE for Natural language. Speech parsing describes the syntactic and semantic analysis of spontaneous spoken language. The general approach is based on incremental immediate flat analysis, learning of syntactic and semantic speech parsing, parallel integration of current hypotheses, and the consideration of various forms of speech related errors. The goal for this approach is to explore the parallel interactions between various knowledge sources for learning incremental fault-tolerant speech parsing. This approach is examined in a system SCREEN using various hybrid connectionist techniques. Hybrid connectionist techniques are examined because of their promising properties of inherent fault tolerance, learning, gradedness and parallel constraint integration. The input for SCREEN is hypotheses about recognized words of a spoken utterance potentially analyzed by a spe...

  4. Study Parses Comorbidity of Cannabis Use and Social Anxiety

    Science.gov (United States)

    ... Use and Social Anxiety Study Parses Comorbidity of Cannabis Use and Social Anxiety Email Facebook Twitter October ... difficulties and other cannabis-related problems. SAD and Cannabis Use Severity Further analysis suggested that people with ...

  5. Efficient Analysis of Complex Diagrams using Constraint-Based Parsing

    CERN Document Server

    Futrelle, R P; Futrelle, Robert P.; Nikolakis, Nikos

    1995-01-01

    This paper describes substantial advances in the analysis (parsing) of diagrams using constraint grammars. The addition of set types to the grammar and spatial indexing of the data make it possible to efficiently parse real diagrams of substantial complexity. The system is probably the first to demonstrate efficient diagram parsing using grammars that easily be retargeted to other domains. The work assumes that the diagrams are available as a flat collection of graphics primitives: lines, polygons, circles, Bezier curves and text. This is appropriate for future electronic documents or for vectorized diagrams converted from scanned images. The classes of diagrams that we have analyzed include x,y data graphs and genetic diagrams drawn from the biological literature, as well as finite state automata diagrams (states and arcs). As an example, parsing a four-part data graph composed of 133 primitives required 35 sec using Macintosh Common Lisp on a Macintosh Quadra 700.

  6. Parsing algorithm for line-drawing pattern recognition

    Science.gov (United States)

    Wang, Patrick S. P.; Zhang, Y. Y.

    1991-02-01

    The concept of " universal array grammar" for off-line line drawing patterns is proposed and an algurithm for transforming two-dirrensional line drawing patterns to parsing sequences based on the " universal array grammar" is constructed.

  7. Application of Grammatical Parsing Technique in Chinese Input

    Institute of Scientific and Technical Information of China (English)

    俞士汶

    1990-01-01

    In Peking University Computer Research Institute(PUCRI) a method of inputting Chinese sentences based on words has been developed.To reduce the troubles in choosing one word out of the others characterized by the same feature,grammatical parsing technique is applied to the method and good results have been achieved.This article describes the outline of the method.the principle of applying grammatical formulas and the branch-cutting algorithm used to speed up the grammatical parsing.

  8. Recursive Neural Networks Based on PSO for Image Parsing

    OpenAIRE

    2013-01-01

    This paper presents an image parsing algorithm which is based on Particle Swarm Optimization (PSO) and Recursive Neural Networks (RNNs). State-of-the-art method such as traditional RNN-based parsing strategy uses L-BFGS over the complete data for learning the parameters. However, this could cause problems due to the nondifferentiable objective function. In order to solve this problem, the PSO algorithm has been employed to tune the weights of RNN for minimizing the objective. Experimental res...

  9. A Structural Algorithm for Complex Natural Languages Parse Generation

    Directory of Open Access Journals (Sweden)

    Enikuomehin, A. O.

    2013-06-01

    Full Text Available In artificial intelligence, the study of how humans understand natural languages is cognitive based and such science is essential in the development of a modern day embedded robotic systems. Such systems should have the capability to process natural languages and generate meaningful output. As against machines, humans have the ability to understand a natural language sentence due to the in-born facility inherent in them and such is used to process it. Robotics requires appropriate PARSE systems to be developed in order to handle language based operations. In this paper, we present a new method of generating parse structures on complex natural language using algorithmic processes. The paper explores the process of generating meaning via parse structure and improves on the existing results using well established parsing scheme. The resulting algorithm was implemented in Java and a natural language interface for parse generation is presented. The result further shows that tokenizing sentences into their respective units affects the parse structure in the first instance and semantic representation in the larger scale. Efforts were made to limit the rules used in the generation of the grammar since natural language rules are almost infinite depending on the language set. (Abstract

  10. Chinese unknown word recognition for PCFG-LA parsing.

    Science.gov (United States)

    Huang, Qiuping; He, Liangye; Wong, Derek F; Chao, Lidia S

    2014-01-01

    This paper investigates the recognition of unknown words in Chinese parsing. Two methods are proposed to handle this problem. One is the modification of a character-based model. We model the emission probability of an unknown word using the first and last characters in the word. It aims to reduce the POS tag ambiguities of unknown words to improve the parsing performance. In addition, a novel method, using graph-based semisupervised learning (SSL), is proposed to improve the syntax parsing of unknown words. Its goal is to discover additional lexical knowledge from a large amount of unlabeled data to help the syntax parsing. The method is mainly to propagate lexical emission probabilities to unknown words by building the similarity graphs over the words of labeled and unlabeled data. The derived distributions are incorporated into the parsing process. The proposed methods are effective in dealing with the unknown words to improve the parsing. Empirical results for Penn Chinese Treebank and TCT Treebank revealed its effectiveness.

  11. Rethinking monolingual instructional strategies in multilingual classrooms

    Directory of Open Access Journals (Sweden)

    Jim Cummins

    2007-08-01

    Full Text Available Abstract Three inter-related assumptions regarding best practice in second/foreign language teaching and bilingual/immersion education continue to dominate classroom instruction. These assumptions are that: (a the target language (TL should be used exclusively for instructional purposes without recourse to students’ first language (L1; (b translation between L1 and TL has no place in the language classroom; and (c within immersion and bilingual programs, the two languages should be kept rigidly separate. Research evidence provides minimal support for these assumptions and they are also inconsistent with the instructional implications of current theory in the areas of cognitive psychology and applied linguistics. Based on current research and theory, a set of bilingual instructional strategies are proposed and concrete examples are provided to illustrate how these strategies can be used together with monolingual strategies in a balanced and complementary way.

  12. Robust Parsing Based on Discourse Information Completing partial parses of ill-formed sentences on the basis of discourse information

    CERN Document Server

    Nasukawa, T

    1995-01-01

    In a consistent text, many words and phrases are repeatedly used in more than one sentence. When an identical phrase (a set of consecutive words) is repeated in different sentences, the constituent words of those sentences tend to be associated in identical modification patterns with identical parts of speech and identical modifiee-modifier relationships. Thus, when a syntactic parser cannot parse a sentence as a unified structure, parts of speech and modifiee-modifier relationships among morphologically identical words in complete parses of other sentences within the same text provide useful information for obtaining partial parses of the sentence. In this paper, we describe a method for completing partial parses by maintaining consistency among morphologically identical words within the same text as regards their part of speech and their modifiee-modifier relationship. The experimental results obtained by using this method with technical documents offer good prospects for improving the accuracy of sentence ...

  13. Parsing and Matching Dates in VIAF

    Directory of Open Access Journals (Sweden)

    Jenny A. Toves

    2014-10-01

    Full Text Available The Virtual International Authority File (OCLC Online Computer Library Center 2013 http://viaf.org is built from dozens of authority files with tens of millions of names in more than 150 million authority and bibliographic records expressed in multiple languages, scripts and formats. One of the main tasks in VIAF is to bring together personal names which may have various dates associated with them, such as birth, death or when they were active. These dates can be quite complicated with ranges, approximations, BCE dates, different scripts, and even different calendars. Analysis of the nearly 400,000 unique date strings in VIAF led us to a parsing technique that relies on only a few basic patterns for them. Our goal is to correctly interpret at least 99% of all the dates we find in each of VIAF’s authority files and to use the dates to facilitate matches between authority records. Python source code for the process described here is available at https://github.com/OCLC-Developer-Network/viaf-dates.

  14. Profile of phonological awareness in bilingual and monolingual children

    OpenAIRE

    Souza,Lourdes Bernadete Rocha de; Leite,Aline Gisele Conceição

    2014-01-01

    Purpose: To compare the performance of phonological awareness skills in bilingual and monolingual students of both genders. Methods: This research presents an observational, cross-sectional descriptive study conducted with 17 students from the 3rd grade, aged between seven years and 8 years and 11 months, with similar socioeconomic level, from two private schools, being one a monolingual school, and the other a bilingual one. Children at risk for auditory deprivation of any degree, those...

  15. Bilingual and Monolingual Children Prefer Native-Accented Speakers

    Directory of Open Access Journals (Sweden)

    Andre L. eSouza

    2013-12-01

    Full Text Available Adults and young children prefer to affiliate with some individuals rather than others. Studies have shown that monolingual children show in-group biases for individuals who speak their native language without a foreign accent (Kinzler, Dupoux, & Spelke, 2007. Some studies have suggested that bilingual children are less influenced than monolinguals by language variety when attributing personality traits to different speakers (Anisfeld & Lambert, 1964, which could indicate that bilinguals have fewer in-group biases and perhaps greater social flexibility. However, no previous studies have compared monolingual and bilingual children’s reactions to speakers with unfamiliar foreign accents. In the present study, we investigated the social preferences of 5-year-old English and French monolinguals and English-French bilinguals. Contrary to our predictions, both monolingual and bilingual preschoolers preferred to be friends with native-accented speakers over speakers who spoke their dominant language with an unfamiliar foreign accent. This result suggests that both monolingual and bilingual children have strong preferences for in-group members who use a familiar language variety, and that bilingualism does not lead to generalized social flexibility.

  16. SYNONYMS IN GERMAN ONLINE MONOLINGUAL DICTIONARIES

    Directory of Open Access Journals (Sweden)

    Paloma Sánchez Hernández

    2017-03-01

    Full Text Available This study includes both theoretical and qualitative research and falls within the framework of semantics and lexicography. It is based on work conducted as a part of the COMBIDIGILEX research project: MINECO-FEDER FFI2015-64476-P. The lexicographical description proposed in the COMBIDIGILEX project is based on the foundations of bilingual lexicography from an onomasiological perspective, including paradigmatic information and syntagmatic analysis, which is useful to users creating texts for students at an advanced level. The project analyses verbal lexemes in German and Spanish based on a paradigmatic, syntagmatic, orthographic and morphological perspective (among others. Subsequently, a contrastive analysis was conducted between both languages. In this contribution, we first analyse what paradigmatic information is, including its relevance to a dictionary. Paradigmatic information includes not only synonyms and antonyms but also hyperonyms and hyponyms, which often complete the lexicographical article in a general dictionary. Paradigmatic relations can be observed in light of semantic definitions or may independently become part of the lexical entry. Forming the paradigmatic information of an entry in an independent manner is known as “intentionelle Paradigmatik”, and it constitutes a series of advantages in the dictionary (Hausmann 1991b: 2794. This type of information aids the processes of production and expands vocabulary. Next, we examine the appearance of synonyms in three German online monolingual dictionaries – DWDS, WORTSCHATZLEXIKON and DUDEN ONLINE – from the semantic perspective of cognition verbs. The primary objective of the study is to demonstrate the relevance of this type of information as well as the needs it covers from a user’s perspective. Offering the user a series of lexical elements along with information on semantic relations of a paradigmatic nature thus addresses the issue of users having an array of

  17. On Collocations and Their Interaction with Parsing and Translation

    Directory of Open Access Journals (Sweden)

    Violeta Seretan

    2013-10-01

    Full Text Available We address the problem of automatically processing collocations—a subclass of multi-word expressions characterized by a high degree of morphosyntactic flexibility—in the context of two major applications, namely, syntactic parsing and machine translation. We show that parsing and collocation identification are processes that are interrelated and that benefit from each other, inasmuch as syntactic information is crucial for acquiring collocations from corpora and, vice versa, collocational information can be used to improve parsing performance. Similarly, we focus on the interrelation between collocations and machine translation, highlighting the use of translation information for multilingual collocation identification, as well as the use of collocational knowledge for improving translation. We give a panorama of the existing relevant work, and we parallel the literature surveys with our own experiments involving a symbolic parser and a rule-based translation system. The results show a significant improvement over approaches in which the corresponding tasks are decoupled.

  18. Parsing Turkish with the Lexical Functional Grammar Formalism

    CERN Document Server

    Gungordu, Z; Gungordu, Zelal; Oflazer, Kemal

    1994-01-01

    This paper describes our work on parsing Turkish using the lexical-functional grammar formalism. This work represents the first significant effort for parsing Turkish. Our implementation is based on Tomita's parser developed at Carnegie-Mellon University Center for Machine Translation. The grammar covers a substantial subset of Turkish including simple and complex sentences, and deals with a reasonable amount of word order freeness. The complex agglutinative morphology of Turkish lexical structures is handled using a separate two-level morphological analyzer. After a discussion of key relevant issues regarding Turkish grammar, we discuss aspects of our system and present results from our implementation. Our initial results suggest that our system can parse about 82\\% of the sentences directly and almost all the remaining with very minor pre-editing.

  19. A monolingual mind can have two time lines: Exploring space-time mappings in Mandarin monolinguals.

    Science.gov (United States)

    Yang, Wenxing; Sun, Ying

    2016-06-01

    Can a mind accommodate two time lines? Miles, Tan, Noble, Lumsden and Macrae (Psychonomic Bulletin & Review 18, 598-604, 2011) shows that Mandarin-English bilinguals have both a horizontal space-time mapping consistent with linguistic conventions within English and a vertical representation of time commensurate with Mandarin. However, the present study, via two experiments, demonstrates that Mandarin monolinguals possess two mental time lines, i.e., one horizontal and one vertical line. This study concludes that a Mandarin speaker has two mental time lines not because he/she has acquired L2 English, but because there are both horizontal and vertical expressions in Mandarin spatiotemporal metaphors. Specifically, this study highlights the fact that a horizontal time line does exist in a Mandarin speaker's cognition, even if he/she is a Mandarin monolingual instead of a ME bilingual. Taken together, the evidence in hand is far from sufficient to support Miles et al.'s (2011) conclusion that ME bilinguals' horizontal concept of time is manipulated by English. Implications for theoretical issues concerning the language-thought relationship in general and the effect of bilingualism on cognition in particular are discussed.

  20. Recursive Neural Networks Based on PSO for Image Parsing

    Directory of Open Access Journals (Sweden)

    Guo-Rong Cai

    2013-01-01

    Full Text Available This paper presents an image parsing algorithm which is based on Particle Swarm Optimization (PSO and Recursive Neural Networks (RNNs. State-of-the-art method such as traditional RNN-based parsing strategy uses L-BFGS over the complete data for learning the parameters. However, this could cause problems due to the nondifferentiable objective function. In order to solve this problem, the PSO algorithm has been employed to tune the weights of RNN for minimizing the objective. Experimental results obtained on the Stanford background dataset show that our PSO-based training algorithm outperforms traditional RNN, Pixel CRF, region-based energy, simultaneous MRF, and superpixel MRF.

  1. Preliminary Analysis of a Breadth-First Parsing Algorithm: Theoretical and Experimental Results.

    Science.gov (United States)

    1981-06-01

    also constructed synthetic sequences which generate products of two Catalan numbers and the Fibonacci [20] numbers. These will be presented in turn. One...WORDS (Continue on reveree side if neceemary md Identity by block nuiiber) Parsing, chart parsing, natural language processing, Earley’s algorithm 21...Words: Parsing, Chart Parsing, Natural Language Processing, Earley’s Algorithm V. This research was supported (in part) by the National Institutes of

  2. The auditory attention status in Iranian bilingual and monolingual people

    Directory of Open Access Journals (Sweden)

    Nayiere Mansoori

    2013-05-01

    Full Text Available Background and Aim: Bilingualism, as one of the discussing issues of psychology and linguistics, can influence the speech processing. Of several tests for assessing auditory processing, dichotic digit test has been designed to study divided auditory attention. Our study was performed to compare the auditory attention between Iranian bilingual and monolingual young adults. Methods: This cross-sectional study was conducted on 60 students including 30 Turkish-Persian bilinguals and 30 Persian monolinguals aged between 18 to 30 years in both genders. Dichotic digit test was performed on young individuals with normal peripheral hearing and right hand preference. Results: No significant correlation was found between the results of dichotic digit test of monolinguals and bilinguals (p=0.195, and also between the results of right and left ears in monolingual (p=0.460 and bilingual (p=0.054 groups. The mean score of women was significantly more than men (p=0.031. Conclusion: There was no significant difference between bilinguals and monolinguals in divided auditory attention; and it seems that acquisition of second language in lower ages has no noticeable effect on this type of auditory attention.

  3. Compiling the First Monolingual Lusoga Dictionary

    Directory of Open Access Journals (Sweden)

    Minah Nabirye

    2011-10-01

    Full Text Available

    Abstract: In this research article a study is made of the approach followed to compile the first-ever monolingual dictionary for Lusoga. Lusoga is a Bantu language spoken in Uganda by slightly over two mil-lion people. Being an under-resourced language, the Lusoga orthography had to be designed, a grammar written, and a corpus built, before embarking on the compilation of the dictionary. This compilation was aimed at attaining an academic degree, hence requiring a rigorous research methodology. Firstly, the prevail-ing methods for compiling dictionaries were mainly practical and insufficient in explaining the theoretical linguistic basis for dictionary compilation. Since dictionaries are based on meaning, the theory of meaning was used to account for all linguistic data considered in dictionaries. However, meaning is considered at a very abstract level, far removed from the process of compiling dictionaries. Another theory, the theory of modularity, was used to bridge the gap between the theory of meaning and the compilation process. The modular theory explains how the different modules of a language contribute information to the different parts of the dictionary article or dictionary information in general. Secondly, the research also had to contend with the different approaches for analysing Bantu languages for Bantu and European audiences. A descrip-tion of the Bantu- and European-centred approaches to Bantu studies was undertaken in respect of (a the classification of Lusoga words, and (b the specification of their citations. As a result, Lusoga lexicography deviates from the prevailing Bantu classification and citation of nouns, adjectives and verbs in particular. The dictionary was tested on two separate occasions and all the feedback was considered in the compilation pro-cess. This article, then, gives an overall summary of all the steps involved in the compilation of the Eiwanika ly'Olusoga, i.e. the Monolingual Lusoga Dictionary

  4. Effects of primary and secondary morphological family size in monolingual and bilingual word processing

    NARCIS (Netherlands)

    Mulder, K.; Dijkstra, A.F.J.; Schreuder, R.; Baayen, Harald

    2014-01-01

    This study investigated primary and secondary morphological family size effects in monolingual and bilingual processing, combining experimentation with computational modeling. Family size effects were investigated in an English lexical decision task for Dutch-English bilinguals and English monolingu

  5. Word Magic Revisited: Monolingual and Bilingual Children's Understanding of the Word-Object Relationship.

    Science.gov (United States)

    Rosenblum, Tamar; Pinker, Steven A.

    1983-01-01

    Results showed that monolingual and bilingual preschoolers understand equally that objects may be renamed. However, monolinguals were more likely to mention the object's properties when justifying an answer, whereas bilinguals were more likely to mention social context. (Author/MP)

  6. Reading, Writing, and Parsing Text Files Using C++ (Updated)

    Science.gov (United States)

    2014-10-01

    Reading , Writing, and Parsing Text Files Using C++ (Updated) by Robert J Yager ARL-TN-0642 October 2014...return it to the originator. Army Research Laboratory Aberdeen Proving Ground, MD 21005-5066 ARL-TN-0642 October 2014 Reading , Writing, and...

  7. Treelet Probabilities for HPSG Parsing and Error Correction

    NARCIS (Netherlands)

    Ivanova, Angelina; van Noord, Gerardus; Calzolari, Nicoletta; al, et

    2014-01-01

    Most state-of-the-art parsers take an approach to produce an analysis for any input despite errors. However, small grammatical mistakes in a sentence often cause parser to fail to build a correct syntactic tree. Applications that can identify and correct mistakes during parsing are particularly inte

  8. Fuzzy Context- Free Languages. Part 2: Recognition and Parsing Algorithms

    NARCIS (Netherlands)

    Asveld, Peter R.J.

    2000-01-01

    In a companion paper [9] we used fuzzy context-free grammars in order to model grammatical errors resulting in erroneous inputs for robust recognizing and parsing algorithms for fuzzy context-free languages. In particular, this approach enables us to distinguish between small errors ("tiny mistakes"

  9. Weighted deductive parsing and Knuth's algorithm - Squibs and discussions

    NARCIS (Netherlands)

    Nederhof, MJ

    2003-01-01

    We discuss weighted deductive parsing and consider the problem of finding the derivation with the lowest weight. We show that Knuth's generalization of Dijkstra's algorithm for the shortest-path problem offers a general method to solve this problem. Our approach is modular in the sense that Knuth's

  10. A simple DOP model for constituency parsing of Italian sentences

    NARCIS (Netherlands)

    Sangati, F.

    2009-01-01

    We present a simplified Data-Oriented Parsing (DOP) formalism for learning the constituency structure of Italian sentences. In our approach we try to simplify the original DOP methodology by constraining the number and type of fragments we extract from the training corpus. We provide some examples

  11. Time-Driven Effects on Parsing during Reading

    Science.gov (United States)

    Roll, Mikael; Lindgren, Magnus; Alter, Kai; Horne, Merle

    2012-01-01

    The phonological trace of perceived words starts fading away in short-term memory after a few seconds. Spoken utterances are usually 2-3 s long, possibly to allow the listener to parse the words into coherent prosodic phrases while they still have a clear representation. Results from this brain potential study suggest that even during silent…

  12. Applications of Parsing Theory to Computer-Assisted Instruction.

    Science.gov (United States)

    Markosian, Lawrence Z.; Ager, Tryg A.

    1983-01-01

    Applications of an LR-1 parsing algorithm to intelligent programs for computer assisted instruction in symbolic logic and foreign languages are discussed. The system has been adequately used for diverse instructional applications, including analysis of student input, generation of pattern drills, and modeling the student's understanding of the…

  13. The Sausage Machine: A New Two-Stage Parsing Model.

    Science.gov (United States)

    Frazier, Lyn; Fodor, Janet Dean

    1978-01-01

    The human sentence parsing device assigns phrase structure to sentences in two steps. The first stage parser assigns lexical and phrasal nodes to substrings of words. The second stage parser then adds higher nodes to link these phrasal packages together into a complete phrase marker. This model is compared with others. (Author/RD)

  14. Hierarchical object parsing from structured noisy point clouds.

    Science.gov (United States)

    Barbu, Adrian

    2013-07-01

    Object parsing and segmentation from point clouds are challenging tasks because the relevant data is available only as thin structures along object boundaries or other features, and is corrupted by large amounts of noise. To handle this kind of data, flexible shape models are desired that can accurately follow the object boundaries. Popular models such as active shape and active appearance models (AAMs) lack the necessary flexibility for this task, while recent approaches such as the recursive compositional models make model simplifications to obtain computational guarantees. This paper investigates a hierarchical Bayesian model of shape and appearance in a generative setting. The input data is explained by an object parsing layer which is a deformation of a hidden principal component analysis (PCA) shape model with Gaussian prior. The paper also introduces a novel efficient inference algorithm that uses informed data-driven proposals to initialize local searches for the hidden variables. Applied to the problem of object parsing from structured point clouds such as edge detection images, the proposed approach obtains state-of-the-art parsing errors on two standard datasets without using any intensity information.

  15. A simple DOP model for constituency parsing of Italian sentences

    NARCIS (Netherlands)

    F. Sangati

    2009-01-01

    We present a simplified Data-Oriented Parsing (DOP) formalism for learning the constituency structure of Italian sentences. In our approach we try to simplify the original DOP methodology by constraining the number and type of fragments we extract from the training corpus. We provide some examples o

  16. Flexibility in task switching by monolinguals and bilinguals*

    Science.gov (United States)

    WISEHEART, MELODY; VISWANATHAN, MYTHILI; BIALYSTOK, ELLEN

    2015-01-01

    Many bilinguals routinely switch between their languages, yet mixed evidence exists about the transfer of language switching skills to broader domains that require attentional control such as task switching. Monolingual and bilingual young adults performed a nonverbal task-switching paradigm in which they viewed colored pictures of animals and indicated either the animal or its color in response to a cue. Monolinguals and bilinguals performed similarly when switching between tasks (local switch cost) in a mixed-task block, but bilinguals demonstrated a smaller mixing effect (global switch cost) than monolinguals, indicating better ability to reconfigure stimulus–response associations. These results suggest that regular practice using multiple languages confers a broader executive function advantage shown as improved flexibility in task switching. PMID:26877705

  17. Effective Look-up Techniques to Approach a Monolingual Dictionary

    Directory of Open Access Journals (Sweden)

    Nauman Al Amin Ali El Sayed

    2013-07-01

    Full Text Available A dictionary is (a learning tool that can help the language learner in acquiring great knowledge of and about a foreign language. Almost all language learners buy or at least possess, at one time, a monolingual or bilingual dictionary, to which the learner may refer to look up the meaning of words. Unfortunately, using dictionary to look up the meaning of words seems to be the most important service, which a dictionary is expected to provide to language learners. In fact, a dictionary provides much data about language to its readers such as telling them about: the word spelling, phonology, phonetics, etymology, stylistics and definitions among other aspects. This paper sheds light on how the dictionary can teach its readers with special focus on monolingual dictionary. Hence, the discussion of this paper will centre on how dictionaries can teach students rather than on how students can learn from them. Keywords: monolingual dictionary, learning strategies, language acquisition, lexicography

  18. Novel word retention in bilingual and monolingual speakers

    Directory of Open Access Journals (Sweden)

    Pui Fong eKan

    2014-09-01

    Full Text Available The goal of this research was to examine word retention in bilinguals and monolinguals. Long-term word retention is an essential part of vocabulary learning. Previous studies have documented that bilinguals outperform monolinguals in terms of retrieving newly-exposed words. Yet, little is known about whether or to what extent bilinguals are different from monolinguals in word retention. Participants were 30 English-speaking monolingual adults and 30 bilingual adults who speak Spanish as a home language and learned English as a second language during childhood. In a previous study (Kan, Sadagopan, Janich, & Andrade, 2014, the participants were exposed to the target novel words in English, Spanish, and Cantonese. In this current study, word retention was measured a week after the fast mapping task. No exposures were given during the one-week interval. Results showed that bilinguals and monolinguals retain a similar number of words. However, participants produced more words in English than in either Spanish or Cantonese. Correlation analyses revealed that language knowledge plays a role in the relationships between fast mapping and word retention. Specifically, within- and across-language relationships between bilinguals’ fast mapping and word retention were found in Spanish and English, by contrast, within-language relationships between monolinguals’ fast mapping and word retention were found in English and across-language relationships between their fast mapping and word retention performance in English and Cantonese. Similarly, bilinguals differed from monolinguals in the relationships among the word retention scores in three languages. Significant correlations were found among bilinguals’ retention scores. However, no such correlations were found among monolinguals’ retention scores. The overall findings suggest that bilinguals’ language experience and language knowledge most likely contribute to how they learn and retain new words.

  19. Brain Network Activity in Monolingual and Bilingual Older Adults

    Science.gov (United States)

    Grady, Cheryl L.; Luk, Gigi; Craik, Fergus I.M.; Bialystok, Ellen

    2016-01-01

    Bilingual older adults typically have better performance on tasks of executive control (EC) than do their monolingual peers, but differences in brain activity due to language experience are not well understood. Based on studies showing a relation between the dynamic range of brain network activity and performance on EC tasks, we hypothesized that life-long bilingual older adults would show increased functional connectivity relative to monolinguals in networks related to EC. We assessed intrinsic functional connectivity and modulation of activity in task vs. fixation periods in two brain networks that are active when EC is engaged, the frontoparietal control network (FPC) and the salience network (SLN). We also examined the default mode network (DMN), which influences behavior through reduced activity during tasks. We found stronger intrinsic functional connectivity in the FPC and DMN in bilinguals than in monolinguals. Although there were no group differences in the modulation of activity across tasks and fixation, bilinguals showed stronger correlations than monolinguals between intrinsic connectivity in the FPC and task-related increases of activity in prefrontal and parietal regions. This bilingual difference in network connectivity suggests that language experience begun in childhood and continued throughout adulthood influences brain networks in ways that may provide benefits in later life. PMID:25445783

  20. Working Memory Development in Monolingual and Bilingual Children

    Science.gov (United States)

    Morales, Julia; Calvo, Alejandra; Bialystok, Ellen

    2013-01-01

    Two studies are reported comparing the performance of monolingual and bilingual children on tasks requiring different levels of working memory. In the first study, 56 5-year-olds performed a Simon-type task that manipulated working memory demands by comparing conditions based on two rules and four rules and manipulated conflict resolution demands…

  1. Coordination of Executive Functions in Monolingual and Bilingual Children

    Science.gov (United States)

    Bialystok, Ellen

    2011-01-01

    Two groups of 8-year-old children who were monolingual or bilingual completed a complex classification task in which they made semantic judgments on stimuli that were presented either visually or auditorily. The task requires coordinating a variety of executive control components, specifically working memory, inhibition, and shifting. When each of…

  2. Receptive Vocabulary Differences in Monolingual and Bilingual Children

    Science.gov (United States)

    Bialystok, Ellen; Luk, Gigi; Peets, Kathleen F.; Yang, Sujin

    2010-01-01

    Studies often report that bilingual participants possess a smaller vocabulary in the language of testing than monolinguals, especially in research with children. However, each study is based on a small sample so it is difficult to determine whether the vocabulary difference is due to sampling error. We report the results of an analysis of 1,738…

  3. Language learning and control in monolinguals and bilinguals.

    Science.gov (United States)

    Bartolotti, James; Marian, Viorica

    2012-08-01

    Parallel language activation in bilinguals leads to competition between languages. Experience managing this interference may aid novel language learning by improving the ability to suppress competition from known languages. To investigate the effect of bilingualism on the ability to control native-language interference, monolinguals and bilinguals were taught an artificial language designed to elicit between-language competition. Partial activation of interlingual competitors was assessed with eye-tracking and mouse-tracking during a word recognition task in the novel language. Eye-tracking results showed that monolinguals looked at competitors more than bilinguals, and for a longer duration of time. Mouse-tracking results showed that monolinguals' mouse movements were attracted to native-language competitors, whereas bilinguals overcame competitor interference by increasing the activation of target items. Results suggest that bilinguals manage cross-linguistic interference more effectively than monolinguals. We conclude that language interference can affect lexical retrieval, but bilingualism may reduce this interference by facilitating access to a newly learned language. Copyright © 2012 Cognitive Science Society, Inc.

  4. Troubling Literacy: Monolingual Assumptions, Multilingual Contexts, and Language Teacher Expertise

    Science.gov (United States)

    Cross, Russell

    2011-01-01

    The current educational context in many English speaking countries is one where literacy is understood to be essentially monolingual in orientation; that is, an understanding of literacy around a single common language, with the emphasis on identifying universal, normative "standards" and "benchmarks", such as the…

  5. School Leadership along the Trajectory from Monolingual to Multilingual

    Science.gov (United States)

    Ascenzi-Moreno, Laura; Hesson, Sarah; Menken, Kate

    2016-01-01

    This article explores the critical role of school leaders in language policy change, and specifically in shifting their language education policies and practices from monolingual to multilingual. We examine the process of language policy change in three schools that were involved in a project aimed at increasing the knowledge base of school…

  6. Language Learning and Control in Monolinguals and Bilinguals

    Science.gov (United States)

    Bartolotti, James; Marian, Viorica

    2012-01-01

    Parallel language activation in bilinguals leads to competition between languages. Experience managing this interference may aid novel language learning by improving the ability to suppress competition from known languages. To investigate the effect of bilingualism on the ability to control native-language interference, monolinguals and bilinguals…

  7. Stakeholder Perspectives on CLIL in a Monolingual Context

    Science.gov (United States)

    Lancaster, Nina K.

    2016-01-01

    This article documents the findings of a study concerning the perspectives on Content and Language Integrated Learning (CLIL) in the monolingual context of Jaén. The research has involved the design, validation and administration of two sets of questionnaires to 745 informants (692 students and 53 teachers) within eight secondary schools with a…

  8. A Parsing Graph-based Algorithm for Ontology Mapping

    Institute of Scientific and Technical Information of China (English)

    WANG Zong-jiang; WANG Ying-lin; ZHANG Shen-sheng; DU Tao

    2009-01-01

    Ontology mapping is a critical problem for integrating the heterogeneous information sources. It can identify the elements corresponding to each other. At present, there are many ontology mapping algorithms, but most of them are bused on database schema. After analyzing the similarity and difference of ontology and schema, wepropose a parsing graph-based algorithm for ontology mapping. The ontology parsing graph (OP-graph) extends the general concept of graph, encodes logic relationship, and semantic information which the ontology contains into vertices and edges of the graph. Thus, the problem of ontology mapping is translated into a problem of finding the optimal match between the two OP-graphs. With the definition of a universal measure for comparing the entities of two ontoingies, we calculate the whole similarity between the two OP-graphs iteratively, until the optimal match is found. The results of experiments show that our algorithm is promising.

  9. ManeParse : A Mathematica reader for Parton Distribution Functions

    Science.gov (United States)

    Clark, D. B.; Godat, E.; Olness, F. I.

    2017-07-01

    Parton Distribution Functions (PDFs) are essential non-perturbative inputs for calculation of any observable with hadronic initial states. These PDFs are released by individual groups as discrete grids as a function of the Bjorken- x and energy scale Q. The LHAPDF project maintains a repository of PDFs from various groups in a new standardized LHAPDF6 format, additionally older formats such as the CTEQ PDS grid format are still in use. ManeParse is a package that provides access to PDFs within Mathematica to facilitate calculation and plotting. The program is self-contained so there are no external links to any FORTRAN, C or C++ programs. The package includes the option to use the built-in Mathematica interpolation or a custom cubic Lagrange interpolation routine which allows for flexibility in the extrapolation (particularly at small x-values). ManeParse is fast enough to enable simple calculations (involving even one or two integrations) in the Mathematica framework.

  10. An on-line method in studying music parsing.

    Science.gov (United States)

    Berent, I; Perfetti, C A

    1993-03-01

    Listening to music entails the construction of a mental representation based on partial and ambiguous information. This study examines an experimental method that reflects such parsing decisions on-line by detecting the cognitive load resulting from temporary parsing failures. The method investigated was a divided attention paradigm in which listening to music was the primary task and click detection was a concurrent secondary task. It was hypothesized that increasing the complexity of the primary task by introducing an unprepared chromatic modulation results in an increase in response latencies to a click presented immediately after the modulatory shift. The support of this prediction by musicians' data provides evidence for the sensitivity of the paradigm. The failure of non-musicians to reflect the expected load is attributed to their attention-allocation strategy. These results are discussed in terms of their implications on the view of the musical parser as deterministic.

  11. Three New Probabilistic Models for Dependency Parsing An Exploration

    CERN Document Server

    Eisner, J

    1997-01-01

    After presenting a novel O(n^3) parsing algorithm for dependency grammar, we develop three contrasting ways to stochasticize it. We propose (a) a lexical affinity model where words struggle to modify each other, (b) a sense tagging model where words fluctuate randomly in their selectional preferences, and (c) a generative model where the speaker fleshes out each word's syntactic and conceptual structure without regard to the implications for the hearer. We also give preliminary empirical results from evaluating the three models' parsing performance on annotated Wall Street Journal training text (derived from the Penn Treebank). In these results, the generative (i.e., top-down) model performs significantly better than the others, and does about equally well at assigning part-of-speech tags.

  12. Extending TF1: Argument parsing, function composition, and vectorization

    CERN Document Server

    Tsang Mang Kin, Arthur Leonard

    2017-01-01

    In this project, we extend the functionality of the TF1 function class in root. We add argument parsing, making it possible to freely pass variables and parameters into pre-defined and user-defined functions. We also introduce a syntax to use certain compositions of functions, namely normalized sums and convolutions, directly in TF1. Finally, we introduce some simple vectorization functionality to TF1 and demonstrate the potential to speed up parallelizable computations.

  13. Keystroke dynamics as signal for shallow syntactic parsing

    OpenAIRE

    Plank, Barbara

    2016-01-01

    Keystroke dynamics have been extensively used in psycholinguistic and writing research to gain insights into cognitive processing. But do keystroke logs contain actual signal that can be used to learn better natural language processing models? We postulate that keystroke dynamics contain information about syntactic structure that can inform shallow syntactic parsing. To test this hypothesis, we explore labels derived from keystroke logs as auxiliary task in a multi-task bidirectional Long Sho...

  14. Spontaneous Speech Parsing in Travel Information Inquiring and Booking Systems

    Institute of Scientific and Technical Information of China (English)

    燕鹏举; 郑方; 孙辉; 徐明星

    2002-01-01

    Grammar-based parsing is a prevalent method for natural language under-standing (NLU) and has been introduced into dialogue systems for spoken language processing(SLP). A robust parsing scheme is proposed in this paper to overcome the notorious phenome-na, such as garbage, ellipsis, word disordering, fragment, and ill-form, which frequently occurin spoken utterances. Keyword categories are used as terminal symbols, and the definition ofgrammar is extended by introducing three new rule types, by-passing, up-messing and over-crossing, in addition to the general rules called up-tying in this paper, and the use of semanticitems simplifies the semantics extraction. The corresponding parser marionette, which is essen-tially a partial chart parser, is enhanced to parse the semantic grammar. The robust parsingscheme integrating the above methods has been adopted in an air traveling information ser-vice system called EasyFlight, and has achieved a high performance when used for parsingspontaneous speeches.

  15. Towards History-based Grammars Using Richer Models for Probabilistic Parsing

    CERN Document Server

    Black, E; Lafferty, G D; Magerman, D M; Mercer, R; Roukos, S; Black, Ezra; Jelinek, Fred; Lafferty, John; Magerman, David M.; Mercer, Robert; Roukos, Salim

    1994-01-01

    We describe a generative probabilistic model of natural language, which we call HBG, that takes advantage of detailed linguistic information to resolve ambiguity. HBG incorporates lexical, syntactic, semantic, and structural information from the parse tree into the disambiguation process in a novel way. We use a corpus of bracketed sentences, called a Treebank, in combination with decision tree building to tease out the relevant aspects of a parse tree that will determine the correct parse of a sentence. This stands in contrast to the usual approach of further grammar tailoring via the usual linguistic introspection in the hope of generating the correct parse. In head-to-head tests against one of the best existing robust probabilistic parsing models, which we call P-CFG, the HBG model significantly outperforms P-CFG, increasing the parsing accuracy rate from 60% to 75%, a 37% reduction in error.

  16. Some Novel Applications of Explanation-Based Learning to Parsing Lexicalized Tree-Adjoining Grammars

    CERN Document Server

    Srinivas, B; Joshi, Aravind

    1995-01-01

    In this paper we present some novel applications of Explanation-Based Learning (EBL) technique to parsing Lexicalized Tree-Adjoining grammars. The novel aspects are (a) immediate generalization of parses in the training set, (b) generalization over recursive structures and (c) representation of generalized parses as Finite State Transducers. A highly impoverished parser called a ``stapler'' has also been introduced. We present experimental results using EBL for different corpora and architectures to show the effectiveness of our approach.

  17. Acquisition of German pluralization rules in monolingual and multilingual children

    Directory of Open Access Journals (Sweden)

    Eugen Zaretsky

    2013-10-01

    Full Text Available Existing studies on plural acquisition in German have relied on small samples and thus hardly deliver generalizable and differentiated results. Here, overgeneralizations of certain plural allomorphs and other tendencies in the acquisition of German plural markers are described on the basis of test data from 7,394 3- to 5-yearold monolingual German and bi/multilingual immigrant children tested with a modified, validated version of the Marburger Sprachscreening (MSS language test and 476 children tested with the SETK 3-5 language test. Classified correct and wrong answers to MSS and SETK 3-5 plural items were compared. The acquisition patterns of immigrants corresponded to those of younger German children. Both monolingual German and immigrant children demonstrated generally the same universal frequency and phonetically/phonologically based error patterns, irrespective of their linguistic background, but with different tendencies such as overgeneralization of -s by German children only.

  18. The auditory attention status in Iranian bilingual and monolingual people

    OpenAIRE

    Nayiere Mansoori; Seyed Ali Akbar Tahaei; Zahra Jafari; Mohammad Kamali

    2013-01-01

    Background and Aim: Bilingualism, as one of the discussing issues of psychology and linguistics, can influence the speech processing. Of several tests for assessing auditory processing, dichotic digit test has been designed to study divided auditory attention. Our study was performed to compare the auditory attention between Iranian bilingual and monolingual young adults. Methods: This cross-sectional study was conducted on 60 students including 30 Turkish-Persian bilinguals and 30 Persian mo...

  19. Receptive vocabulary differences in monolingual and bilingual children

    OpenAIRE

    Bialystok, Ellen; PEETS, KATHLEEN F.; Yang, Sujin; Luk, Gigi

    2010-01-01

    Studies often report that bilingual participants possess a smaller vocabulary in the language of testing than monolinguals, especially in research with children. However, each study is based on a small sample so it is difficult to determine whether the vocabulary difference is due to sampling error. We report the results of an analysis of 1,738 children between 3 and 10 years old and demonstrate a consistent difference in receptive vocabulary between the two groups. Two preliminary analyses s...

  20. Acquisition of German pluralization rules in monolingual and multilingual children

    OpenAIRE

    Eugen Zaretsky; Lange, Benjamin P.; Euler, Harald A.; Katrin Neumann

    2013-01-01

    Existing studies on plural acquisition in German have relied on small samples and thus hardly deliver generalizable and differentiated results. Here, overgeneralizations of certain plural allomorphs and other tendencies in the acquisition of German plural markers are described on the basis of test data from 7,394 3- to 5-year- old monolingual German and bi/multilingual immigrant children tested with a modified, validated version of the Marburger Sprachscreening (MSS) language test and 476 chi...

  1. Lexical Selection Differences between Monolingual and Bilingual Listeners

    Science.gov (United States)

    Friesen, Deanna C.; Chung-Fat-Yim, Ashley; Bialystok, Ellen

    2015-01-01

    Three studies are reported investigating how monolinguals and bilinguals resolve within-language competition when listening to isolated words. Participants saw two pictures that were semantically-related, phonologically-related, or unrelated and heard a word naming one of them while event-related potentials were recorded. In Studies 1 and 2, the pictures and auditory cue were presented simultaneously and the related conditions produced interference for both groups. Monolinguals showed reduced N400s to the semantically-related pairs but there was no modulation in this component by bilinguals. Study 3 inserted an interval between picture and word onset. For picture onset, both groups exhibited reduced N400s to semantically-related pictures; for word onset, both groups showed larger N400s to phonologically-related pictures. Overall, bilinguals showed less integration of related items in simultaneous (but not sequential) presentation, presumably because of interference from the activated non-English language. Thus, simple lexical selection for bilinguals includes more conflict than it does for monolinguals. PMID:26684415

  2. Locating and parsing bibliographic references in HTML medical articles.

    Science.gov (United States)

    Zou, Jie; Le, Daniel; Thoma, George R

    2010-06-01

    The set of references that typically appear toward the end of journal articles is sometimes, though not always, a field in bibliographic (citation) databases. But even if references do not constitute such a field, they can be useful as a preprocessing step in the automated extraction of other bibliographic data from articles, as well as in computer-assisted indexing of articles. Automation in data extraction and indexing to minimize human labor is key to the affordable creation and maintenance of large bibliographic databases. Extracting the components of references, such as author names, article title, journal name, publication date and other entities, is therefore a valuable and sometimes necessary task. This paper describes a two-step process using statistical machine learning algorithms, to first locate the references in HTML medical articles and then to parse them. Reference locating identifies the reference section in an article and then decomposes it into individual references. We formulate this step as a two-class classification problem based on text and geometric features. An evaluation conducted on 500 articles drawn from 100 medical journals achieves near-perfect precision and recall rates for locating references. Reference parsing identifies the components of each reference. For this second step, we implement and compare two algorithms. One relies on sequence statistics and trains a Conditional Random Field. The other focuses on local feature statistics and trains a Support Vector Machine to classify each individual word, followed by a search algorithm that systematically corrects low confidence labels if the label sequence violates a set of predefined rules. The overall performance of these two reference-parsing algorithms is about the same: above 99% accuracy at the word level, and over 97% accuracy at the chunk level.

  3. IWPT 2001 7th International Workshop on Parsing Technologies

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    http://www.icl.pku.edu.cn/iwpt2001.html    The Institute of Computational Linguistics, Peking University, Beijing,China, will host the 7th International Workshop on Parsing Technologies (IWPT2001) from 17 to 19 October, 2001.    Topics of interest for IWPT2001   Topics of interest for IWPT2001 include, but are not limited to: theoretical and practical studies of parsing algorithms for natural language sentences, texts, fragments, dialogues, ill-formed sentences, speech input, multi-dimensional (pictorial) languages, multimedia(web) documents, and parsing issues arising or viewed in a multimodal context. Both grammar-based and statistical approaches are welcome.   Prospective authors are invited to send submissions to the IWPT2001 programme chairman Giorgio Satta. Papers must be in the format given at the IWPT2001 home pages. Full papers should not exceed 12 pages; short papers should not exceed 1500 words. Submission is electronically, in postscript form. Only in case electronic submission is impossible, four (4) hard copies of the paper should be sent. Send papers to:      iwpt2001@dei.unipd.it   Giorgio Satta (IWPT2001 programme chair)   Universita`di Padova   Dipartimento di Elettronica e Informatica   via Gradenigo 6/A   I-35131 Padova, Italy      Time schedule: Deadline for paper submission: June 5 Notification of acceptance: July 18 Final papers due: August 27

  4. Limits on Monolingualism? A comparison of monolingual and bilingual infants’ abilities to integrate lexical tone in novel word learning.

    Directory of Open Access Journals (Sweden)

    Leher eSingh

    2016-05-01

    Full Text Available To construct their first lexicon, infants must determine the relationship between native phonological variation and the meanings of words. This process is arguably more complex for bilingual learners who are often confronted with phonological conflict: phonological variation that is lexically relevant in one language may be lexically irrelevant in the other. In a series of four experiments, the present study investigated English-Mandarin bilingual infants’ abilities to negotiate phonological conflict introduced by learning both a tone and a non-tone language. In a novel word learning task, bilingual children were tested on their sensitivity to tone variation in English and Mandarin contexts. Their abilities to interpret tone variation in a language-dependent manner were compared to those of monolingual Mandarin learning infants. Results demonstrated that at 12 to 13 months, bilingual infants demonstrated the ability to bind tone to word meanings in Mandarin, but to disregard tone variation when learning new words in English. In contrast, monolingual learners of Mandarin did not show evidence of integrating tones into word meanings in Mandarin at the same age even though they were learning a tone language. However, a tone discrimination paradigm confirmed that monolingual Mandarin learning infants were able to tell these tones apart at 12 to 13 months under a different set of conditions. Later, at 17 to 18 months, monolingual Mandarin learners were able to bind tone variation to word meanings when learning new words. Our findings are discussed in terms of cognitive adaptations associated with bilingualism that may ease the negotiation of phonological conflict and facilitate precocious uptake of certain properties of each language.

  5. Disambiguation of Super Parts of Speech (or Supertags) Almost Parsing

    CERN Document Server

    Joshi, A K; Joshi, Aravind K.

    1994-01-01

    In a lexicalized grammar formalism such as Lexicalized Tree-Adjoining Grammar (LTAG), each lexical item is associated with at least one elementary structure (supertag) that localizes syntactic and semantic dependencies. Thus a parser for a lexicalized grammar must search a large set of supertags to choose the right ones to combine for the parse of the sentence. We present techniques for disambiguating supertags using local information such as lexical preference and local lexical dependencies. The similarity between LTAG and Dependency grammars is exploited in the dependency model of supertag disambiguation. The performance results for various models of supertag disambiguation such as unigram, trigram and dependency-based models are presented.

  6. Exploring the role of Punctuation in Parsing Natural Text

    CERN Document Server

    Jones, B

    1995-01-01

    Few, if any, current NLP systems make any significant use of punctuation. Intuitively, a treatment of punctuation seems necessary to the analysis and production of text. Whilst this has been suggested in the fields of discourse structure, it is still unclear whether punctuation can help in the syntactic field. This investigation attempts to answer this question by parsing some corpus-based material with two similar grammars --- one including rules for punctuation, the other ignoring it. The punctuated grammar significantly out-performs the unpunctuated one, and so the conclusion is that punctuation can play a useful role in syntactic processing.

  7. Error-Correcting Parsing for Syntactic Pattern Recognition

    Science.gov (United States)

    1977-08-01

    the parser can, at most, generate a partial parse. Therefore, for a given gramar , G, a parser can be used to answer the membership problem, it can...Step 2. ’ ’•’ »- ZZZS^^m^mmimmmimmäk • •- - • •- 124 4.3. An Illustrative Example 4.3.1. Data Preparation A set of English characters Is used to...37. Narasimhan, R. and V. S. N. Reddy, "A Syntax-Aided Recognition Scheme for Handprinted English Letters," Pattern Recognition, Vol. 3, PP. 345

  8. Modeling morphosyntactic agreement in constituency-based parsing of modern Hebrew

    NARCIS (Netherlands)

    Tsarfaty, R.; Sima'an, K.

    2010-01-01

    We show that naïve modeling of morphosyn-tactic agreement in a Constituency-Based (CB) statistical parsing model is worse than none, whereas a linguistically adequate way of modeling inflectional morphology in CB parsing leads to improved performance. In particular, we show that an extension of the

  9. Efficient Algorithms for Parsing the DOP Model? A Reply to Joshua Goodman

    CERN Document Server

    Bod, R

    1996-01-01

    This note is a reply to Joshua Goodman's paper "Efficient Algorithms for Parsing the DOP Model" (Goodman, 1996; cmp-lg/9604008). In his paper, Goodman makes a number of claims about (my work on) the Data-Oriented Parsing model (Bod, 1992-1996). This note shows that some of these claims must be mistaken.

  10. Relating Complexity to Practical Performance in Parsing with Wide-Coverage Unification Grammars

    CERN Document Server

    Carroll, J

    1994-01-01

    The paper demonstrates that exponential complexities with respect to grammar size and input length have little impact on the performance of three unification-based parsing algorithms, using a wide-coverage grammar. The results imply that the study and optimisation of unification-based parsing must rely on empirical data until complexity theory can more accurately predict the practical behaviour of such parsers.

  11. Data-oriented parsing with discontinuous constituents and function tags

    Directory of Open Access Journals (Sweden)

    Andreas van Cranenburgh

    2016-04-01

    Full Text Available Statistical parsers are e ective but are typically limited to producing projective dependencies or constituents. On the other hand, linguisti- cally rich parsers recognize non-local relations and analyze both form and function phenomena but rely on extensive manual grammar development. We combine advantages of the two by building a statistical parser that produces richer analyses. We investigate new techniques to implement treebank-based parsers that allow for discontinuous constituents. We present two systems. One system is based on a string-rewriting Linear Context-Free Rewriting System (LCFRS, while using a Probabilistic Discontinuous Tree Substitution Grammar (PDTSG to improve disambiguation performance. Another system encodes the discontinuities in the labels of phrase structure trees, allowing for efficient context-free grammar parsing.The two systems demonstrate that tree fragments as used in tree-substitution grammar improve disambiguation performance while capturing non-local relations on an as-needed basis. Additionally, we present results of models that produce function tags, resulting in a more linguistically adequate model of the data. We report substantial accuracy improvements in discontinuous parsing for German, English, and Dutch, including results on spoken Dutch.

  12. ManeParse: a Mathematica reader for Parton Distribution Functions

    CERN Document Server

    Clark, D B; Olness, F I

    2016-01-01

    Parton Distribution Functions (PDFs) are essential non-perturbative inputs for calculation of any observable with hadronic initial states. These PDFs are released by individual groups as discrete grids as a function of the Bjorken-x and energy scale Q. The LHAPDF project at HepForge maintains a repository of PDFs from various groups in a new standardized LHAPDF6 format, as well as older formats such as the CTEQ PDS grid format. ManeParse is a package that provides PDFs within the Mathematica framework to facilitate calculating and plotting. The program is self-contained so there are no external links to any Fortran, C or C++ programs. The package includes the option to use the built-in Mathematica interpolation or a custom cubic Lagrange interpolation routine which allows for flexibility in the extrapolation (particularly at small x values). ManeParse is fast enough to enable simple calculations (involving even one or two integrations) to be easily computed in the Mathematica framework.

  13. Receptive vocabulary differences in monolingual and bilingual children*

    Science.gov (United States)

    Bialystok, Ellen; Luk, Gigi; Peets, Kathleen F.; Yang, Sujin

    2015-01-01

    Studies often report that bilingual participants possess a smaller vocabulary in the language of testing than monolinguals, especially in research with children. However, each study is based on a small sample so it is difficult to determine whether the vocabulary difference is due to sampling error. We report the results of an analysis of 1,738 children between 3 and 10 years old and demonstrate a consistent difference in receptive vocabulary between the two groups. Two preliminary analyses suggest that this difference does not change with different language pairs and is largely confined to words relevant to a home context rather than a school context. PMID:25750580

  14. Perception of a native vowel contrast by Dutch monolingual and bilingual infants : A bilingual perceptual lead

    NARCIS (Netherlands)

    Liu, L.|info:eu-repo/dai/nl/369509870; Kager, R.W.J.|info:eu-repo/dai/nl/072294124

    2016-01-01

    Purpose: Facing previous mixed findings between monolingual and bilingual infants’ phonetic development during perceptual reorganization, the current study aims at examining the perceptual development of a native vowel contrast (/I/-/i/) by Dutch monolingual and bilingual infants. Design: We tested

  15. Are there differences in selective attention and conflict resolution between monolingual and bilingual children?

    NARCIS (Netherlands)

    Mondt, K.; Noort, M.W.M.L. van den; Balériaux, D.; Bosch, M.P.C.; Hadzibeganovic, T.; Denolin, V.; Craen, P. van de

    2009-01-01

    Objectives Possible differences in selective attention and conflict resolution between monolingual and bilingual children were tested in an fMRI study. Methods An adopted version of the Stroop task was conducted on 19 monolingual- and bilingual (French/Dutch) children with a mean age of 8.9 years in

  16. Global-Local and Trail-Making Tasks by Monolingual and Bilingual Children: Beyond Inhibition

    Science.gov (United States)

    Bialystok, Ellen

    2010-01-01

    In 3 experiments, a total of 151 monolingual and bilingual 6-year-old children performed similarly on measures of language and cognitive ability; however, bilinguals solved the global-local and trail-making tasks more rapidly than monolinguals. This bilingual advantage was found not only for the traditionally demanding conditions (incongruent…

  17. Language Proficiency and Executive Control in Proactive Interference: Evidence from Monolingual and Bilingual Children and Adults

    Science.gov (United States)

    Bialystok, Ellen; Feng, Xiaojia

    2009-01-01

    Two studies are reported in which monolingual and bilingual children (Study 1) and adults (Study 2) completed a memory task involving proactive interference. In both cases, the bilinguals attained lower scores on a vocabulary test than monolinguals but performed the same on the proactive interference task. For the children, bilinguals made fewer…

  18. Behavioral and Electrophysiological Differences in Executive Control between Monolingual and Bilingual Children

    Science.gov (United States)

    Barac, Raluca; Moreno, Sylvain; Bialystok, Ellen

    2016-01-01

    This study examined executive control in sixty-two 5-year-old children who were monolingual or bilingual using behavioral and event-related potentials (ERPs) measures. All children performed equivalently on simple response inhibition (gift delay), but bilingual children outperformed monolinguals on interference suppression and complex response…

  19. Orthographic Context Sensitivity in Vowel Decoding by Portuguese Monolingual and Portuguese-English Bilingual Children

    Science.gov (United States)

    Vale, Ana Paula

    2011-01-01

    This study examines the pronunciation of the first vowel in decoding disyllabic pseudowords derived from Portuguese words. Participants were 96 Portuguese monolinguals and 52 Portuguese-English bilinguals of equivalent Portuguese reading levels. The results indicate that sensitivity to vowel context emerges early, both in monolinguals and in…

  20. Are there differences in selective attention and conflict resolution between monolingual and bilingual children?

    NARCIS (Netherlands)

    Mondt, K.; Noort, M.W.M.L. van den; Balériaux, D.; Bosch, M.P.C.; Hadzibeganovic, T.; Denolin, V.; Craen, P. van de

    2009-01-01

    Objectives Possible differences in selective attention and conflict resolution between monolingual and bilingual children were tested in an fMRI study. Methods An adopted version of the Stroop task was conducted on 19 monolingual- and bilingual (French/Dutch) children with a mean age of 8.9 years in

  1. Do French-English Bilingual Children Gesture More than Monolingual Children?

    Science.gov (United States)

    Nicoladis, Elena; Pika, Simone; Marentette, Paula

    2009-01-01

    Previous studies have shown that bilingual adults use more gestures than English monolinguals. Because no study has compared the gestures of bilinguals and monolinguals in both languages, the high gesture rate could be due to transfer from a high gesture language or could result from the use of gesture to aid in linguistic access. In this study we…

  2. Effects of Speech Practice on Fast Mapping in Monolingual and Bilingual Speakers

    Science.gov (United States)

    Kan, Pui Fong; Sadagopan, Neeraja; Janich, Lauren; Andrade, Marixa

    2014-01-01

    Purpose: This study examines the effects of the levels of speech practice on fast mapping in monolingual and bilingual speakers. Method: Participants were 30 English-speaking monolingual and 30 Spanish-English bilingual young adults. Each participant was randomly assigned to 1 of 3 practice conditions prior to the fast-mapping task: (a) intensive…

  3. Towards a Realistic Parsing of the Feynman Path Integral

    Directory of Open Access Journals (Sweden)

    Ken Wharton

    2016-01-01

    Full Text Available The Feynman path integral does not allow a one real path interpretation, because the quantum amplitudes contribute to probabilities in a non-separable manner. The opposite extreme, all paths happen, is not a useful or informative account. In this paper it is shown that an intermediate parsing of the path integral, into realistic non-interfering possibilities, is always available. Each realistic possibility formally corresponds to numerous particle paths, but is arguably best interpreted as a spacetime-valued field. Notably, one actual field history can always be said to occur, although it will generally not have an extremized action. The most obvious concerns with this approach are addressed, indicating necessary follow-up research. But without obvious showstoppers, it seems plausible that the path integral might be reinterpreted to explain quantum phenomena in terms of Lorentz covariant field histories.Quanta 2016; 5: 1–11.

  4. Toward a theory of distributed word expert natural language parsing

    Science.gov (United States)

    Rieger, C.; Small, S.

    1981-01-01

    An approach to natural language meaning-based parsing in which the unit of linguistic knowledge is the word rather than the rewrite rule is described. In the word expert parser, knowledge about language is distributed across a population of procedural experts, each representing a word of the language, and each an expert at diagnosing that word's intended usage in context. The parser is structured around a coroutine control environment in which the generator-like word experts ask questions and exchange information in coming to collective agreement on sentence meaning. The word expert theory is advanced as a better cognitive model of human language expertise than the traditional rule-based approach. The technical discussion is organized around examples taken from the prototype LISP system which implements parts of the theory.

  5. Parsing learning in networks using brain-machine interfaces.

    Science.gov (United States)

    Orsborn, Amy L; Pesaran, Bijan

    2017-08-24

    Brain-machine interfaces (BMIs) define new ways to interact with our environment and hold great promise for clinical therapies. Motor BMIs, for instance, re-route neural activity to control movements of a new effector and could restore movement to people with paralysis. Increasing experience shows that interfacing with the brain inevitably changes the brain. BMIs engage and depend on a wide array of innate learning mechanisms to produce meaningful behavior. BMIs precisely define the information streams into and out of the brain, but engage wide-spread learning. We take a network perspective and review existing observations of learning in motor BMIs to show that BMIs engage multiple learning mechanisms distributed across neural networks. Recent studies demonstrate the advantages of BMI for parsing this learning and its underlying neural mechanisms. BMIs therefore provide a powerful tool for studying the neural mechanisms of learning that highlights the critical role of learning in engineered neural therapies. Copyright © 2017. Published by Elsevier Ltd.

  6. Finding keywords amongst noise: automatic text classification without parsing

    Science.gov (United States)

    Allison, Andrew G.; Pearce, Charles E. M.; Abbott, Derek

    2007-06-01

    The amount of text stored on the Internet, and in our libraries, continues to expand at an exponential rate. There is a great practical need to locate relevant content. This requires quick automated methods for classifying textual information, according to subject. We propose a quick statistical approach, which can distinguish between 'keywords' and 'noisewords', like 'the' and 'a', without the need to parse the text into its parts of speech. Our classification is based on an F-statistic, which compares the observed Word Recurrence Interval (WRI) with a simple null hypothesis. We also propose a model to account for the observed distribution of WRI statistics and we subject this model to a number of tests.

  7. Motion based parsing for video from observational psychology

    Science.gov (United States)

    Kokaram, Anil; Doyle, Erika; Lennon, Daire; Joyeux, Laurent; Fuller, Ray

    2006-01-01

    In Psychology it is common to conduct studies involving the observation of humans undertaking some task. The sessions are typically recorded on video and used for subjective visual analysis. The subjective analysis is tedious and time consuming, not only because much useless video material is recorded but also because subjective measures of human behaviour are not necessarily repeatable. This paper presents tools using content based video analysis that allow automated parsing of video from one such study involving Dyslexia. The tools rely on implicit measures of human motion that can be generalised to other applications in the domain of human observation. Results comparing quantitative assessment of human motion with subjective assessment are also presented, illustrating that the system is a useful scientific tool.

  8. Chart-driven Connectionist Categorial Parsing of Spoken Korean

    CERN Document Server

    Lee, W I; Lee, J H; Lee, WonIl; Lee, Geunbae; Lee, Jong-Hyeok

    1995-01-01

    While most of the speech and natural language systems which were developed for English and other Indo-European languages neglect the morphological processing and integrate speech and natural language at the word level, for the agglutinative languages such as Korean and Japanese, the morphological processing plays a major role in the language processing since these languages have very complex morphological phenomena and relatively simple syntactic functionality. Obviously degenerated morphological processing limits the usable vocabulary size for the system and word-level dictionary results in exponential explosion in the number of dictionary entries. For the agglutinative languages, we need sub-word level integration which leaves rooms for general morphological processing. In this paper, we developed a phoneme-level integration model of speech and linguistic processings through general morphological analysis for agglutinative languages and a efficient parsing scheme for that integration. Korean is modeled lexi...

  9. Parsing interindividual drug variability: an emerging role for systems pharmacology

    Science.gov (United States)

    Turner, Richard M; Park, B Kevin; Pirmohamed, Munir

    2015-01-01

    There is notable interindividual heterogeneity in drug response, affecting both drug efficacy and toxicity, resulting in patient harm and the inefficient utilization of limited healthcare resources. Pharmacogenomics is at the forefront of research to understand interindividual drug response variability, but although many genotype-drug response associations have been identified, translation of pharmacogenomic associations into clinical practice has been hampered by inconsistent findings and inadequate predictive values. These limitations are in part due to the complex interplay between drug-specific, human body and environmental factors influencing drug response and therefore pharmacogenomics, whilst intrinsically necessary, is by itself unlikely to adequately parse drug variability. The emergent, interdisciplinary and rapidly developing field of systems pharmacology, which incorporates but goes beyond pharmacogenomics, holds significant potential to further parse interindividual drug variability. Systems pharmacology broadly encompasses two distinct research efforts, pharmacologically-orientated systems biology and pharmacometrics. Pharmacologically-orientated systems biology utilizes high throughput omics technologies, including next-generation sequencing, transcriptomics and proteomics, to identify factors associated with differential drug response within the different levels of biological organization in the hierarchical human body. Increasingly complex pharmacometric models are being developed that quantitatively integrate factors associated with drug response. Although distinct, these research areas complement one another and continual development can be facilitated by iterating between dynamic experimental and computational findings. Ultimately, quantitative data-derived models of sufficient detail will be required to help realize the goal of precision medicine. WIREs Syst Biol Med 2015, 7:221–241. doi: 10.1002/wsbm.1302 PMID:25950758

  10. Marginal Space Deep Learning: Efficient Architecture for Volumetric Image Parsing.

    Science.gov (United States)

    Ghesu, Florin C; Krubasik, Edward; Georgescu, Bogdan; Singh, Vivek; Yefeng Zheng; Hornegger, Joachim; Comaniciu, Dorin

    2016-05-01

    Robust and fast solutions for anatomical object detection and segmentation support the entire clinical workflow from diagnosis, patient stratification, therapy planning, intervention and follow-up. Current state-of-the-art techniques for parsing volumetric medical image data are typically based on machine learning methods that exploit large annotated image databases. Two main challenges need to be addressed, these are the efficiency in scanning high-dimensional parametric spaces and the need for representative image features which require significant efforts of manual engineering. We propose a pipeline for object detection and segmentation in the context of volumetric image parsing, solving a two-step learning problem: anatomical pose estimation and boundary delineation. For this task we introduce Marginal Space Deep Learning (MSDL), a novel framework exploiting both the strengths of efficient object parametrization in hierarchical marginal spaces and the automated feature design of Deep Learning (DL) network architectures. In the 3D context, the application of deep learning systems is limited by the very high complexity of the parametrization. More specifically 9 parameters are necessary to describe a restricted affine transformation in 3D, resulting in a prohibitive amount of billions of scanning hypotheses. The mechanism of marginal space learning provides excellent run-time performance by learning classifiers in clustered, high-probability regions in spaces of gradually increasing dimensionality. To further increase computational efficiency and robustness, in our system we learn sparse adaptive data sampling patterns that automatically capture the structure of the input. Given the object localization, we propose a DL-based active shape model to estimate the non-rigid object boundary. Experimental results are presented on the aortic valve in ultrasound using an extensive dataset of 2891 volumes from 869 patients, showing significant improvements of up to 45

  11. Learning a hierarchical deformable template for rapid deformable object parsing.

    Science.gov (United States)

    Zhu, Long Leo; Chen, Yuanhao; Yuille, Alan

    2010-06-01

    In this paper, we address the tasks of detecting, segmenting, parsing, and matching deformable objects. We use a novel probabilistic object model that we call a hierarchical deformable template (HDT). The HDT represents the object by state variables defined over a hierarchy (with typically five levels). The hierarchy is built recursively by composing elementary structures to form more complex structures. A probability distribution--a parameterized exponential model--is defined over the hierarchy to quantify the variability in shape and appearance of the object at multiple scales. To perform inference--to estimate the most probable states of the hierarchy for an input image--we use a bottom-up algorithm called compositional inference. This algorithm is an approximate version of dynamic programming where approximations are made (e.g., pruning) to ensure that the algorithm is fast while maintaining high performance. We adapt the structure-perceptron algorithm to estimate the parameters of the HDT in a discriminative manner (simultaneously estimating the appearance and shape parameters). More precisely, we specify an exponential distribution for the HDT using a dictionary of potentials, which capture the appearance and shape cues. This dictionary can be large and so does not require handcrafting the potentials. Instead, structure-perceptron assigns weights to the potentials so that less important potentials receive small weights (this is like a "soft" form of feature selection). Finally, we provide experimental evaluation of HDTs on different visual tasks, including detection, segmentation, matching (alignment), and parsing. We show that HDTs achieve state-of-the-art performance for these different tasks when evaluated on data sets with groundtruth (and when compared to alternative algorithms, which are typically specialized to each task).

  12. Perception of English vowels by bilingual Chinese-English and corresponding monolingual listeners.

    Science.gov (United States)

    Yang, Jing; Fox, Robert A

    2014-06-01

    This study compares the underlying perceptual structure of vowel perception in monolingual Chinese, monolingual English and bilingual Chinese-English listeners. Of particular interest is how listeners' spatial organization of vowels is affected either by their L1 or their experience with L2. Thirteen English vowels, /i, I, e, epsilon, ae, u, omega, o, (see symbol), alpha, (see symbol)I, alphaI, alphaomega/, embedded in /hVd/ syllable produced by an Ohio male speaker were presented in pairs to three groups of listeners. Each listener rated 312 vowel pairs on a nine-point dissimilarity scale. The responses from each group were analyzed using a multidimensional scaling program (ALSCAL). Results demonstrated that all three groups of listeners used high/low and front/back distinctions as the two most important dimensions to perceive English vowels. However, the vowels were distributed in clusters in the perceptual space of Chinese monolinguals, while they were appropriately separated and located in that of bilinguals and English monolinguals. Besides the two common perceptual dimensions, each group of listeners utilized a different third dimension to perceive these English vowels. English monolinguals used high-front offset. Bilinguals used a dimension mainly correlated to the distinction of monophthong/diphthong. Chinese monolinguals separated two high vowels, /i/ and /u/, from the rest of vowels in the third dimension. The difference between English monolinguals and Chinese monolinguals evidenced the effect of listeners' native language on the vowel perception. The difference between Chinese monolinguals and bilingual listeners as well as the approximation of bilingual listeners' perceptual space to that of English monolinguals demonstrated the effect of L2 experience on listeners' perception of L2 vowels.

  13. The relationship between vocabulary and short-term memory measures in monolingual and bilingual speakers

    Science.gov (United States)

    Kaushanskaya, Margarita; Blumenfeld, Henrike K.; Marian, Viorica

    2012-01-01

    Previous studies have indicated that bilingualism may influence the efficiency of lexical access in adults. The goals of this research were (1) to compare bilingual and monolingual adults on their native-language vocabulary performance, and (2) to examine the relationship between short-term memory skills and vocabulary performance in monolinguals and bilinguals. In Experiment 1, English-speaking monolingual adults and simultaneous English–Spanish bilingual adults were administered measures of receptive English vocabulary and of phonological short-term memory. In Experiment 2, monolingual adults were compared to sequential English–Spanish bilinguals, and were administered the same measures as in Experiment 1, as well as a measure of expressive English vocabulary. Analyses revealed comparable levels of performance on the vocabulary and the short-term memory measures in the monolingual and the bilingual groups across both experiments. There was a stronger effect of digit-span in the bilingual group than in the monolingual group, with high-span bilinguals outperforming low-span bilinguals on vocabulary measures. Findings indicate that bilingual speakers may rely on short-term memory resources to support word retrieval in their native language more than monolingual speakers. PMID:22518091

  14. Performance evaluation of continuity of care records (CCRs): parsing models in a mobile health management system.

    Science.gov (United States)

    Chen, Hung-Ming; Liou, Yong-Zan

    2014-10-01

    In a mobile health management system, mobile devices act as the application hosting devices for personal health records (PHRs) and the healthcare servers construct to exchange and analyze PHRs. One of the most popular PHR standards is continuity of care record (CCR). The CCR is expressed in XML formats. However, parsing is an expensive operation that can degrade XML processing performance. Hence, the objective of this study was to identify different operational and performance characteristics for those CCR parsing models including the XML DOM parser, the SAX parser, the PULL parser, and the JSON parser with regard to JSON data converted from XML-based CCR. Thus, developers can make sensible choices for their target PHR applications to parse CCRs when using mobile devices or servers with different system resources. Furthermore, the simulation experiments of four case studies are conducted to compare the parsing performance on Android mobile devices and the server with large quantities of CCR data.

  15. Kernel-Based Semantic Relation Detection and Classification via Enriched Parse Tree Structure

    Institute of Scientific and Technical Information of China (English)

    Guo-Dong Zhou; Qiao-Ming Zhu

    2011-01-01

    This paper proposes a tree kernel method of semantic relation detection and classification (RDC) between named entities. It resolves two critical problems in previous tree kernel methods of RDC. First, a new tree kernel is presented to better capture the inherent structural information in a parse tree by enabling the standard convolution tree kernel with context-sensitiveness and approximate matching of sub-trees. Second, an enriched parse tree structure is proposed to well derive necessary structural information, e.g., proper latent annotations, from a parse tree. Evaluation on the ACE RDC corpora shows that both the new tree kernel and the enriched parse tree structure contribute significantly to RDC and our tree kernel method much outperforms the state-of-the-art ones.

  16. Use of Monolingual and Bilingual Dictionaries among Students of English

    Directory of Open Access Journals (Sweden)

    Monika Kavalir

    2010-12-01

    Full Text Available The study of dictionary use in 32 firstyear students of English at the University of Ljubljana in the academic year 2009/2010 shows that students use a variety of dictionaries with a slight preponderance of monolingual dictionaries over bilingual ones. The bilingual dictionaries listed do not include some of the most recent and most comprehensive dictionaries while some of the most frequently used resources are quite modest sized. The students are already predominantly users of electronic and online dictionaries with a lower frequency of printed resources – a trend which is only likely to accelerate with the advent of new bilingual online dictionaries. These results have practical relevance for teachers in all sectors, from primary and secondary schools to universities, as they point towards a need for additional training in the use of bilingual dictionaries. The transition from printed to electronic and online resources can also be expected to induce changes in EFL methodology at all levels.

  17. Toward the Soundness of Sense Structure Definitions in Thesaurus-Dictionaries. Parsing Problems and Solutions

    Directory of Open Access Journals (Sweden)

    Neculai Curteanu

    2012-10-01

    Full Text Available In this paper we point out some difficult problems of thesaurus-dictionary entry parsing, relying on the parsing technology of SCD (Segmentation-Cohesion-Dependency configurations, successfully applied on six largest thesauri -- Romanian (2, French, German (2, and Russian. \\textbf{Challenging Problems:} \\textbf{(a}~Intricate and~/~or recursive structures of the lexicographic segments met in the entries of certain thesauri; \\textbf{(b}~Cyclicity (recursive calls of some sense marker classes on marker sequences; \\textbf{(c}~Establishing the hypergraph-driven dependencies between all the atomic and non-atomic sense definitions. Classical approach to solve these parsing problems is hard mainly because of depth-first search of sense definitions and markers, the substantial complexity of entries, and the sense tree dynamic construction embodied within these parsers. \\textbf{SCD-based Parsing Solutions:} \\textbf{(a}~The SCD parsing method is a procedural tool, completely formal grammar-free, handling the recursive structure of the lexicographic segments by procedural non-recursive calls performed on the SCD parsing configurations of the entry structure. \\textbf{(b}~For dealing with cyclicity (recursive calls between secondary sense markers and the sense enumeration markers, we proposed the Enumeration Closing Condition, sometimes coupled with New{\\_}Paragraphs typographic markers transformed into numeral sense enumeration. \\textbf{(c}~These problems, their lexicographic modeling and parsing solutions are addressed to both dictionary parser programmers to experience the SCD-based parsing method, as well as to lexicographers and thesauri designers for tailoring balanced lexical-semantics granularities and sounder sense tree definitions of the dictionary entries.

  18. Learning for Semantic Parsing and Natural Language Generation Using Statistical Machine Translation Techniques

    Science.gov (United States)

    2007-08-01

    XTAG grammar used by FERGUS is a bidirectional (or reversible) grammar that has been used for parsing as well ( Schabes and Joshi, 1988). The use of a...answer- ing (Wang et al., 2007), and syntactic parsing for resource-poor languages (Chiang et al., 2006). Shieber and Schabes (1990a,b) propose that... Schabes , 1990b; Bos, 2005; Zettlemoyer and Collins, 2007). In the future, we would like to devise learning algorithms similar to WASP that construct

  19. SRNAome parsing yields insights into tomato fruit ripening control.

    Science.gov (United States)

    Zuo, Jinhua; Fu, Daqi; Zhu, Yi; Qu, Guiqin; Tian, Huiqin; Zhai, Baiqiang; Ju, Zheng; Gao, Chao; Wang, Yunxiang; Luo, Yunbo; Zhu, Benzhong

    2013-12-01

    Small RNAs have emerged as critical regulators in the expression and function of eukaryotic genomes at the post-transcriptional level. To elucidate the functions of microRNA (miRNAs) and endogenous small-interfering RNAs (siRNAs) in tomato fruit ripening process, the deep sequencing and bioinformatics methods were combined to parse the small RNAs landscape in three fruit-ripening stages (mature green, breaker and red-ripe) on a whole genome. Two species-specific miRNAs and two members of TAS3 family were identified, 590 putative phased small RNAs and 125 cis-natural antisense (nat-siRNAs) were also found in our results which enriched the tomato small RNAs repository and all of them showed differential expression patterns during fruit ripening. A large amount of the targets of the small RNAs were predicted to be involved in fruit ripening and ethylene pathway. Furthermore, the promoters of the conserved and novel miRNAs were found to contain the conserved motifs of TATA-box and CT microsatellites which were also found in Arabidopsis and rice, and several species-specific motifs were found in parallel.

  20. Differential Language Functioning of Monolinguals and Bilinguals on Positive-Negative Emotional Expression.

    Science.gov (United States)

    Kheirzadeh, Shiela; Hajiabed, Mohammadreza

    2016-02-01

    The present interdisciplinary research investigates the differential emotional expression between Persian monolinguals and Persian-English bilinguals. In other words, the article was an attempt to answer the questions whether bilinguals and monolinguals differ in the expression of positive and negative emotions elicited through sad and happy autobiographies and measured through UWIST Mood Adjective Checklist. The result of this pioneering work indicated no significant difference between Persian monolinguals and Persian-English bilinguals in expressing happy memories while differences were observed on sad memories. Bilinguals expressed more negative emotions in their L2 than L1. This outcome support the dominant claim that second language is the preferred language for the expression of sad emotions since it is the language of emotional detachment and distance. Further analysis on the number of words bilinguals and monolinguals used to express both sad and happy autobiographies indicated that bilinguals used more words in expressing both sad and happy autobiographies.

  1. Executive Function Differences Between Bilingual Arabic-English and Monolingual Arabic Children.

    Science.gov (United States)

    Abdelgafar, Ghada Mohammed; Moawad, Ruba AbdelMatloub

    2015-10-01

    This study aimed to explore the differences between Arabic-English bilingual and monolingual Arabic children on a battery of executive functions. Prior research on the influence of bilingualism on cognitive abilities and executive functions has shown mixed results. Some results suggested that bilinguals perform significantly better than monolinguals, while others showed that monolinguals perform significantly better. Other studies showed no significant differences between both groups, findings which were argued to be due to methodological issues. A total of 50 Arabic monolingual and Arabic-English bilingual children ranging 7-10 years of age participated in the current study. Six executive function tasks, divided into two categories (inhibition of improper response tasks, and behavioral operational control tasks), were administered. Results did not show significant differences for most executive functions.

  2. Compositions in English: Comparing the Works of Monolinguals, Passive Bilinguals, and Active Bilinguals

    Directory of Open Access Journals (Sweden)

    Julia Eka Rini

    2010-01-01

    Full Text Available This study tries to see whether the subjects’ “monolingualism” and “bilingualism” (monolinguals learning an L2 and bilinguals learning an L3 influence their study on English, especially writing. The term “bilinguals” also means “multilinguals” in this study. Bilinguals in this paper are classified into two; first, passive bilinguals who are only exposed to another local language, besides speaking Bahasa Indonesia at home, and second, active bilinguals who are exposed to and also speak other language(s and Bahasa Indonesia at home. The findings show that the monolingual and the active bilingual are better than the passive one; the active bilingual is better than the monolingual. However, if the passive and the active bilingual are combined, the monolingual is better than the bilinguals.

  3. Language proficiency and executive control in proactive interference: evidence from monolingual and bilingual children and adults.

    Science.gov (United States)

    Bialystok, Ellen; Feng, Xiaojia

    2009-01-01

    Two studies are reported in which monolingual and bilingual children (Study 1) and adults (Study 2) completed a memory task involving proactive interference. In both cases, the bilinguals attained lower scores on a vocabulary test than monolinguals but performed the same on the proactive interference task. For the children, bilinguals made fewer intrusions from previous lists even though they recalled the same number of words. For the adults, bilinguals recalled more words than monolinguals when the scores were corrected for differences in vocabulary. In addition, there was a strong effect of vocabulary in which higher vocabulary participants recalled more words irrespective of language group. These results point to the important role of vocabulary in verbal performance and memory. They also suggest that bilinguals may compensate for weaker language proficiency with their greater executive control to achieve the same or better levels of performance as monolinguals.

  4. Dublin City University at CLEF 2004: experiments in monolingual, bilingual and multilingual retrieval

    OpenAIRE

    Jones, Gareth J.F.; Burke, Michael; Judge, John; Khasin, Anna; Lam-Adesina, Adenike M.; Wagner, Joachim

    2005-01-01

    The Dublin City University group participated in the monolingual, bilingual and multilingual retrieval tasks this year. The main focus of our investigation this year was extending our retrieval system to document languages other than English, and completing the multilingual task comprising four languages: English, French, Russian and Finnish. Results from our French monolingual experiments indicate that working in French is more effective for retrieval than adopting document and topic translat...

  5. Exeter at CLEF 2003: Experiments with machine translation for monolingual, bilingual and multilingual retrieval

    OpenAIRE

    Lam-Adesina, Adenike M.; Jones, Gareth J.F.

    2004-01-01

    The University of Exeter group participated in the monolingual, bilingual and multilingual-4 retrieval tasks this year. The main focus of our investigation this year was the small multilingual task comprising four languages, French, German, Spanish and English. We adopted a document translation strategy and tested four merging techniques to combine results from the separate document collections, as well as a merged collection strategy. For both the monolingual and bilingual tasks we explored ...

  6. Age of dementia diagnosis in community dwelling bilingual and monolingual Hispanic Americans.

    Science.gov (United States)

    Lawton, Deborah M; Gasquoine, Philip G; Weimer, Amy A

    2015-05-01

    Bilingualism has been reported to delay the age of retrospective report of first symptom in dementia. This study determined if the age of clinically diagnosed Alzheimer's disease and vascular dementia occurred later for bilingual than monolingual, immigrant and U.S. born, Hispanic Americans. It involved a secondary analysis of the subset of 81 bi/monolingual dementia cases identified at yearly follow-up (1998 through 2008) using neuropsychological test results and objective diagnostic criteria from the Sacramento Area Latino Study on Aging that involved a random sampling of community dwelling Hispanic Americans (N = 1789). Age of dementia diagnosis was analyzed in a 2 × 2 (bi/monolingualism × immigrant/U.S. born) ANOVA that space revealed both main effects and the interaction were non-significant. Mean age of dementia diagnosis was descriptively (but not significantly) higher in the monolingual (M = 81.10 years) than the bilingual (M = 79.31) group. Overall, bilingual dementia cases were significantly better educated than monolinguals, but U.S. born bilinguals and monolinguals did not differ significantly in education. Delays in dementia symptomatology pertaining to bilingualism are less likely to be found in studies: (a) that use age of clinical diagnosis vs. retrospective report of first dementia symptom as the dependent variable; and (b) involve clinical cases derived from community samples rather than referrals to specialist memory clinics.

  7. Perception of scene-relative object movement: Optic flow parsing and the contribution of monocular depth cues

    National Research Council Canada - National Science Library

    Warren, Paul A; Rushton, Simon K

    2009-01-01

    ...). Here, we explore whether stereo disparity is necessary for flow parsing or whether other sources of depth information, which could theoretically constrain flow-field interpretation, are sufficient...

  8. Perceptual parsing of acoustic consequences of velum lowering from information for vowels.

    Science.gov (United States)

    Fowler, C A; Brown, J M

    2000-01-01

    Three experiments were designed to investigate how listeners to coarticulated speech use the acoustic speech signal during a vowel to extract information about a forthcoming oral or nasal consonant. A first experiment showed that listeners use evidence of nasalization in a vowel as information for a forthcoming nasal consonant. A second and third experiment attempted to distinguish two accounts of their ability to do so. According to one account, listeners hear nasalization in the vowel as such and use it to predict that a forthcoming nasal consonant is nasal. According to a second, they perceive speech gestures and hear nasalization in the acoustic domain of a vowel as the onset of a nasal consonant. Therefore, they parse nasal information from a vowel and hear the vowel as oral. In Experiment 2, evidence in favor of the parsing hypothesis was found. Experiment 3 showed, however, that parsing is incomplete.

  9. Deep PDF parsing to extract features for detecting embedded malware.

    Energy Technology Data Exchange (ETDEWEB)

    Munson, Miles Arthur; Cross, Jesse S. (Missouri University of Science and Technology, Rolla, MO)

    2011-09-01

    The number of PDF files with embedded malicious code has risen significantly in the past few years. This is due to the portability of the file format, the ways Adobe Reader recovers from corrupt PDF files, the addition of many multimedia and scripting extensions to the file format, and many format properties the malware author may use to disguise the presence of malware. Current research focuses on executable, MS Office, and HTML formats. In this paper, several features and properties of PDF Files are identified. Features are extracted using an instrumented open source PDF viewer. The feature descriptions of benign and malicious PDFs can be used to construct a machine learning model for detecting possible malware in future PDF files. The detection rate of PDF malware by current antivirus software is very low. A PDF file is easy to edit and manipulate because it is a text format, providing a low barrier to malware authors. Analyzing PDF files for malware is nonetheless difficult because of (a) the complexity of the formatting language, (b) the parsing idiosyncrasies in Adobe Reader, and (c) undocumented correction techniques employed in Adobe Reader. In May 2011, Esparza demonstrated that PDF malware could be hidden from 42 of 43 antivirus packages by combining multiple obfuscation techniques [4]. One reason current antivirus software fails is the ease of varying byte sequences in PDF malware, thereby rendering conventional signature-based virus detection useless. The compression and encryption functions produce sequences of bytes that are each functions of multiple input bytes. As a result, padding the malware payload with some whitespace before compression/encryption can change many of the bytes in the final payload. In this study we analyzed a corpus of 2591 benign and 87 malicious PDF files. While this corpus is admittedly small, it allowed us to test a system for collecting indicators of embedded PDF malware. We will call these indicators features throughout

  10. Deep PDF parsing to extract features for detecting embedded malware.

    Energy Technology Data Exchange (ETDEWEB)

    Munson, Miles Arthur; Cross, Jesse S. (Missouri University of Science and Technology, Rolla, MO)

    2011-09-01

    The number of PDF files with embedded malicious code has risen significantly in the past few years. This is due to the portability of the file format, the ways Adobe Reader recovers from corrupt PDF files, the addition of many multimedia and scripting extensions to the file format, and many format properties the malware author may use to disguise the presence of malware. Current research focuses on executable, MS Office, and HTML formats. In this paper, several features and properties of PDF Files are identified. Features are extracted using an instrumented open source PDF viewer. The feature descriptions of benign and malicious PDFs can be used to construct a machine learning model for detecting possible malware in future PDF files. The detection rate of PDF malware by current antivirus software is very low. A PDF file is easy to edit and manipulate because it is a text format, providing a low barrier to malware authors. Analyzing PDF files for malware is nonetheless difficult because of (a) the complexity of the formatting language, (b) the parsing idiosyncrasies in Adobe Reader, and (c) undocumented correction techniques employed in Adobe Reader. In May 2011, Esparza demonstrated that PDF malware could be hidden from 42 of 43 antivirus packages by combining multiple obfuscation techniques [4]. One reason current antivirus software fails is the ease of varying byte sequences in PDF malware, thereby rendering conventional signature-based virus detection useless. The compression and encryption functions produce sequences of bytes that are each functions of multiple input bytes. As a result, padding the malware payload with some whitespace before compression/encryption can change many of the bytes in the final payload. In this study we analyzed a corpus of 2591 benign and 87 malicious PDF files. While this corpus is admittedly small, it allowed us to test a system for collecting indicators of embedded PDF malware. We will call these indicators features throughout

  11. BoB: Best of Both in Compiler Construction Bottom-up Parsing with Top-down Semantic Evaluation

    Directory of Open Access Journals (Sweden)

    Wolfgang Dichler

    Full Text Available Compilers typically use either a top-down or a bottom-up strategy for parsing as well as semantic evaluation. Both strategies have advantages and disadvantages: bottom-up parsing supports LR(k grammars but is limited to S- or LR-attribution while top-dow ...

  12. TOGA: An automated parsing technology for analyzing expression of nearly all genes

    OpenAIRE

    Sutcliffe, J. Gregor; Foye, Pamela E.; Erlander, Mark G.; HIlbush, Brian S.; Bodzin, Leon J.; Durham, Jayson T.; Hasel, Karl W.

    2000-01-01

    We have developed an automated, high-throughput, systematic cDNA display method called TOGA, an acronym for total gene expression analysis. TOGA utilizes 8-nt sequences, comprised of a 4-nt restriction endonuclease cleavage site and adjacent 4-nt parsing sequences, and their distances from the 3′ ends of mRNA molecules to give each mRNA species in an organism a single identity. The parsing sequences are used as parts of primer-binding sites in 256 PCR-based assays performed robotically on tis...

  13. Sequential congruency effects reveal differences in disengagement of attention for monolingual and bilingual young adults.

    Science.gov (United States)

    Grundy, John G; Chung-Fat-Yim, Ashley; Friesen, Deanna C; Mak, Lorinda; Bialystok, Ellen

    2017-06-01

    Three studies examined the hypothesis that bilinguals can more rapidly disengage attention from irrelevant information than monolinguals by investigating the impact of previous trial congruency on performance in a simple flanker task. In Study 1, monolingual and bilingual young adults completed two versions of a flanker task. There were no differences between language groups on mean reaction time using standard analyses for congruent or incongruent trials or the size of the flanker effect. Sequential congruency effects (SCEs) however, which account for previous trial congruency, were smaller for bilinguals than for monolinguals. This finding was strongest at the shortest response-to-stimulus interval (RSI). Study 2 replicated this effect using a slightly different flanker task and a shorter RSI than study 1. Study 3 showed that at long RSIs, where behavioral SCE differences between groups disappear because of sufficient time to recover from the previous trial, event-related potentials demonstrated a continued influence of previous trial congruency for monolinguals but not bilinguals at both the N2 and the P3, replicating the reaction time effects in Studies 1 and 2. Together, these studies demonstrate that bilinguals experience less influence from previous trial congruency and have greater ability to disengage attention from the previous trial in order to focus attention on the current trial than is found for monolinguals. Copyright © 2017 Elsevier B.V. All rights reserved.

  14. Comparing Bilingual to Monolingual Learners on English Spelling: A Meta-analytic Review.

    Science.gov (United States)

    Zhao, Jing; Quiroz, Blanca; Dixon, L Quentin; Joshi, R Malatesha

    2016-08-01

    This study reports on a meta-analysis to examine how bilingual learners compare with English monolingual learners on two English spelling outcomes: real-word spelling and pseudo-word spelling. Eighteen studies published in peer-reviewed journals between 1990 and 2014 were retrieved. The study-level variables and characteristics (e.g. sample size, study design and research instruments) were coded, and 29 independent effect sizes across the 18 retrieved studies were analysed. We found that bilinguals outperformed monolinguals on real-word spelling overall and more so in early grades, but monolinguals outperformed bilinguals on pseudo-word spelling. Further, bilinguals at risk for reading difficulties did better on real-word spelling than monolinguals at risk for reading difficulties. Having investigated systematic sources of variability in effect sizes, we conclude that in comparison with their monolingual peers, bilingual learners, especially those from alphabetic L1 backgrounds, are able to master constrained skills, such as English spelling, in the current instructional context. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.

  15. Language-experience facilitates discrimination of /d-th/ in monolingual and bilingual acquisition of English.

    Science.gov (United States)

    Sundara, Megha; Polka, Linda; Genesee, Fred

    2006-06-01

    To trace how age and language experience shape the discrimination of native and non-native phonetic contrasts, we compared 4-year-olds learning either English or French or both and simultaneous bilingual adults on their ability to discriminate the English /d-th/ contrast. Findings show that the ability to discriminate the native English contrast improved with age. However, in the absence of experience with this contrast, discrimination of French children and adults remained unchanged during development. Furthermore, although simultaneous bilingual and monolingual English adults were comparable, children exposed to both English and French were poorer at discriminating this contrast when compared to monolingual English-learning 4-year-olds. Thus, language experience facilitates perception of the English /d-th/ contrast and this facilitation occurs later in development when English and French are acquired simultaneously. The difference between bilingual and monolingual acquisition has implications for language organization in children with simultaneous exposure.

  16. Effects of semantic richness on lexical processing in monolinguals and bilinguals

    Directory of Open Access Journals (Sweden)

    Vanessa Taler

    2016-07-01

    Full Text Available The effect of number of senses (NoS, a measure of semantic richness, was examined in monolingual English speakers (n=17 and bilingual speakers of English and French (n=18. Participants completed lexical decision tasks while EEG was recorded: monolinguals completed the task in English only, and bilinguals completed two lexical decision tasks, one in English and one in French. Effects of NoS were observed in both participant groups, with shorter response times and reduced N400 amplitudes to high relative to low NoS items. These effects were stronger in monolinguals than in bilinguals. Moreover, we found dissociations across languages in bilinguals, with stronger behavioral NoS effects in English and stronger event-related potential (ERP NoS effects in French. This finding suggests that different aspects of linguistic performance may be stronger in each of a bilingual’s two languages.

  17. Effects of Semantic Richness on Lexical Processing in Monolinguals and Bilinguals

    Science.gov (United States)

    Taler, Vanessa; López Zunini, Rocío; Kousaie, Shanna

    2016-01-01

    The effect of number of senses (NoS), a measure of semantic richness, was examined in monolingual English speakers (n = 17) and bilingual speakers of English and French (n = 18). Participants completed lexical decision tasks while EEG was recorded: monolinguals completed the task in English only, and bilinguals completed two lexical decision tasks, one in English and one in French. Effects of NoS were observed in both participant groups, with shorter response times and reduced N400 amplitudes to high relative to low NoS items. These effects were stronger in monolinguals than in bilinguals. Moreover, we found dissociations across languages in bilinguals, with stronger behavioral NoS effects in English and stronger event-related potential (ERP) NoS effects in French. This finding suggests that different aspects of linguistic performance may be stronger in each of a bilingual’s two languages. PMID:27524963

  18. Who can communicate with whom? Language experience affects infants' evaluation of others as monolingual or multilingual.

    Science.gov (United States)

    Pitts, Casey E; Onishi, Kristine H; Vouloumanos, Athena

    2015-01-01

    Adults recognize that people can understand more than one language. However, it is unclear whether infants assume other people understand one or multiple languages. We examined whether monolingual and bilingual 20-month-olds expect an unfamiliar person to understand one or more than one language. Two speakers told a listener the location of a hidden object using either the same or two different languages. When different languages were spoken, monolinguals looked longer when the listener searched correctly, bilinguals did not; when the same language was spoken, both groups looked longer for incorrect searches. Infants rely on their prior language experience when evaluating the language abilities of a novel individual. Monolingual infants assume others can understand only one language, although not necessarily the infants' own; bilinguals do not. Infants' assumptions about which community of conventions people belong to may allow them to recognize effective communicative partners and thus opportunities to acquire language, knowledge, and culture.

  19. Spatial role-taking ability among bilingual and monolingual kindergarten children.

    Science.gov (United States)

    Gorrell, J

    1987-03-01

    Fifty-seven children enrolled in a bilingual Spanish kindergarten program, assigned to appropriate language and age-related groups, were shown a graduated sequence of increasingly complex arrangements of multicolored blocks and were asked to judge how the original arrangement would look from the opposite and the side perspectives. A series of 2(younger vs. older) X 3(Spanish Monolingual vs. English Monolingual vs. Spanish-English Bilingual) ANOVAs for each of the types of responses (correct, incorrect, egocentric) showed a significant main effect for age on the incorrect answers. No differences associated with egocentrism were obtained. There was no relationship between age and success with simple and complex spatial tasks. As opposed to other studies that suggest certain cognitive advantages for young bilingual children, this study indicates no perceptible differences associated with being monolingual or bilingual at the ages of 5 and 6 for spatial tasks.

  20. Language Skills and Reading Comprehension in English Monolingual and Spanish-English Bilingual Children in Grades 2-5

    Science.gov (United States)

    Silverman, Rebecca D.; Proctor, C. Patrick; Harring, Jeffrey R.; Hartranft, Anna M.; Doyle, Brie; Zelinke, Sarah B.

    2015-01-01

    The present study investigated language skills and reading comprehension with English monolingual and Spanish-English bilingual children in grades 2-5. Of the 377 children in the sample, 207 were English monolingual and 170 were Spanish-English bilingual. Data were collected within a cohort-sequential design for two academic years in the fall and…

  1. Language Skills and Reading Comprehension in English Monolingual and Spanish-English Bilingual Children in Grades 2-5

    Science.gov (United States)

    Silverman, Rebecca D.; Proctor, C. Patrick; Harring, Jeffrey R.; Hartranft, Anna M.; Doyle, Brie; Zelinke, Sarah B.

    2015-01-01

    The present study investigated language skills and reading comprehension with English monolingual and Spanish-English bilingual children in grades 2-5. Of the 377 children in the sample, 207 were English monolingual and 170 were Spanish-English bilingual. Data were collected within a cohort-sequential design for two academic years in the fall and…

  2. Phonological Whole-Word Measures in 3-Year-Old Bilingual Children and Their Age-Matched Monolingual Peers

    Science.gov (United States)

    Bunta, Ferenc; Fabiano-Smith, Leah; Goldstein, Brian; Ingram, David

    2009-01-01

    The present study investigated phonological whole-word measures and consonant accuracy in bilingual and monolingual children to investigate how target approximations drive phonological acquisition. The study included eight bilingual Spanish- and English-speaking 3-year-olds and their monolingual peers (eight Spanish and eight American English).…

  3. Mnemonic Value of Orthography for Vocabulary Learning in Monolinguals and Language Minority English-Speaking College Students

    Science.gov (United States)

    Miles, Katharine Pace; Ehri, Linnea C.; Lauterbach, Mark D.

    2016-01-01

    The study examined whether exposure to spellings of new vocabulary words improved monolinguals' and language minority (LM) students' (n = 25) memory for pronunciations, meanings, and spellings of the words. College students who are native English-speaking monolinguals (n = 12) and LM students who learned English as their second language (n = 13)…

  4. Differences between Monolinguals and Bilinguals/Males and Females in English Reading Comprehension and Reading Strategy Use

    Science.gov (United States)

    Afsharrad, Mohammad; Sadeghi Benis, Aram Reza

    2017-01-01

    The present study aims at finding the differences between bilingual and monolingual learners across gender in the use of cognitive, metacognitive, and total reading strategies, as well as reading comprehension ability. To this end, 50 Persian-Turkish bilinguals and 36 Persian monolinguals participated in the study. A standard test of reading…

  5. The Denoised Web Treebank: Evaluating Dependency Parsing under Noisy Input Conditions

    NARCIS (Netherlands)

    van der Goot, Rob; Daiber, Joachim

    2016-01-01

    We introduce the Denoised Web Treebank: a treebank including a normalization layer and a corresponding evaluation metric for dependency parsing of noisy text, such as Tweets. This benchmark enables the evaluation of parser robustness as well as text normalization methods, including normalization as

  6. Introduction to special issue on machine learning approaches to shallow parsing

    NARCIS (Netherlands)

    Hammerton, J; Osborne, M; Armstrong, S; Daelemans, W

    2002-01-01

    This article introduces the problem of partial or shallow parsing (assigning partial syntactic structure to sentences) and explains why it is an important natural language processing (NLP) task. The complexity of the task makes Machine Learning an attractive option in comparison to the handcrafting

  7. SHAPAQA : Shallow Parsing for Question Answering on the World Wide Web

    NARCIS (Netherlands)

    Buchholz, S.; Daelemans, W.; Angelova, G.; et al.,

    2001-01-01

    We introduce shapaqa, a shallow parsing approach to online, open-domain question answering on the WorldWideWeb. Given a form-based natural language question as input, the system uses a memory-based shallow parser to analyze web pages retrieved using normal keyword search on a search engine. Two vers

  8. Generalized Transition Network Parsing for Language Study: The GPARS System for English, Russian, Japanese, and Chinese.

    Science.gov (United States)

    Loritz, Donald

    1992-01-01

    GPARS is a generalized transition network system designed for language study by both students and researchers. It generalizes the Augmented Transition Network formalism by allowing top-down, bottom-up, depth-first, breadth-first, determininistic, and nondeterministic parsing strategies to be freely intermixed. (26 references) (Author/LB)

  9. Fuzzy context-free languages. Part 2: Recognition and parsing algorithms

    NARCIS (Netherlands)

    Asveld, Peter R.J.

    2005-01-01

    In a companion paper [P.R.J. Asveld, Fuzzy context-free languagesPart 1: Generalized fuzzy context-free grammars, Theoret. Comput. Sci., (2005).] we used fuzzy context-free grammars in order to model grammatical errors resulting in erroneous inputs for robust recognizing and parsing algorithms for f

  10. Generative re-ranking model for dependency parsing of Italian sentences

    NARCIS (Netherlands)

    Sangati, F.

    2009-01-01

    We present a general framework for dependency parsing of Italian sentences based on a combination of discriminative and generative models. We use a state-of-the-art discriminative model to obtain a k-best list of candidate structures for the test sentences, and use the generative model to compute

  11. The Psychological Reality of Grammar : the Theta Principle in Parsing Performance

    NARCIS (Netherlands)

    Sadeh-Leicht, O.

    2007-01-01

    This dissertation presents evidence for the psychological reality of a grammatical principle, the Theta Principle. It adopts a grammar-derived theory of human natural language processing ? the thematic parser. Parsing phenomena such as garden path effects (The horse raced past the barn fell) and cen

  12. ParseCNV integrative copy number variation association software with quality tracking.

    Science.gov (United States)

    Glessner, Joseph T; Li, Jin; Hakonarson, Hakon

    2013-03-01

    A number of copy number variation (CNV) calling algorithms exist; however, comprehensive software tools for CNV association studies are lacking. We describe ParseCNV, unique software that takes CNV calls and creates probe-based statistics for CNV occurrence in both case-control design and in family based studies addressing both de novo and inheritance events, which are then summarized based on CNV regions (CNVRs). CNVRs are defined in a dynamic manner to allow for a complex CNV overlap while maintaining precise association region. Using this approach, we avoid failure to converge and non-monotonic curve fitting weaknesses of programs, such as CNVtools and CNVassoc, and although Plink is easy to use, it only provides combined CNV state probe-based statistics, not state-specific CNVRs. Existing CNV association methods do not provide any quality tracking information to filter confident associations, a key issue which is fully addressed by ParseCNV. In addition, uncertainty in CNV calls underlying CNV associations is evaluated to verify significant results, including CNV overlap profiles, genomic context, number of probes supporting the CNV and single-probe intensities. When optimal quality control parameters are followed using ParseCNV, 90% of CNVs validate by polymerase chain reaction, an often problematic stage because of inadequate significant association review. ParseCNV is freely available at http://parsecnv.sourceforge.net.

  13. Multi-Hypothesis Parsing of Tabular Data in Comma-Separated Values (CSV) Files

    NARCIS (Netherlands)

    Döhmen, T.R.

    2016-01-01

    Tabular data on the web comes in various formats and shapes. Preparing data for data analysis and integration requires manual steps which go beyond simple parsing of the data. The preparation includes steps like correct configuration of the parser, removing of meaningless rows, casting of data types

  14. PEG parsing in less space using progressive tabling and dynamic analysis

    DEFF Research Database (Denmark)

    Henglein, Fritz; Rasmussen, Ulrik Terp

    2017-01-01

    Tabular top-down parsing and its lazy variant, Packrat, are lineartime execution models for the TDPL family of recursive descent parsers with limited backtracking. Exponential work due to backtracking is avoided by tabulating the result of each (nonterminal, offset)-pair at the expense of always...

  15. THE COMPARISON OF THE MONOLINGUAL AND BILINGUAL JAPANESE STUDENTS IN THE ENGLISH ACHIEVEMENT

    Directory of Open Access Journals (Sweden)

    Ienneke Indra Dewi

    2007-11-01

    Full Text Available Article is intended to know whether the monolingual or bilingual Japanese students are betterin the English achievement and whether the exposure of English influences the ability. The data weretaken from 60 Japanese students who are supposed to fill in the questionnaires regarding theirlanguage background. The English achievement data were taken from the students’ scores in SeniorHigh School National Examination and the data further were compared to the TOEFL English score.The analysis is carried out using ANOVA analysis. This research indicates that monolinguals arebetter learners in English and exposure is proved to influence the students’ ability in English.

  16. Bilingual Children's Long-Term Outcomes in English as a Second Language: Language Environment Factors Shape Individual Differences in Catching up with Monolinguals

    Science.gov (United States)

    Paradis, Johanne; Jia, Ruiting

    2017-01-01

    Bilingual children experience more variation in their language environment than monolingual children and this impacts their rate of language development with respect to monolinguals. How long it takes for bilingual children learning English as a second language (L2) to display similar abilities to monolingual age-peers has been estimated to be 4-6…

  17. Phonological Awareness and Vocabulary Performance of Monolingual and Bilingual Preschool Children with Hearing Loss

    Science.gov (United States)

    Lund, Emily; Werfel, Krystal L.; Schuele, C. Melanie

    2015-01-01

    This pilot study compared the phonological awareness skills and vocabulary performance of English monolingual and Spanish-English bilingual children with and without hearing loss. Preschool children with varying degrees of hearing loss (n = 18) and preschool children without hearing loss (n = 19) completed measures of phonological awareness and…

  18. Feature binding and the processing of global-local shapes in bilingual and monolingual children.

    Science.gov (United States)

    Cottini, Milvia; Pieroni, Laura; Spataro, Pietro; Devescovi, Antonella; Longobardi, Emiddia; Rossi-Arnaud, Clelia

    2015-04-01

    In the present study, we examined the effects of bilingualism and age on a color-shape binding task (assessing visual working memory) and a global-local task (assessing inhibitory processes) in a sample of 55 bilingual and 49 monolingual children 8 and 10 years old. In the color-shape binding task, corrected recognition scores increased in older children; bilingual children performed better than monolinguals in the shape-only condition, but the two groups were equally accurate in the color-only and combination conditions. In the global-local task, accuracy was higher in bilingual than in monolingual children, particularly on incongruent trials; monolingual children showed a strong global precedence effect (higher accuracy in the global than in the local conditions and greater global-to-local interference), whereas bilingual children exhibited a small, but significant, local precedence effect (higher accuracy in the local than in the global conditions and greater local-to-global interference). These findings confirm and extend previous evidence indicating that the bilingualism advantage is more pronounced in working memory tasks involving inhibitory processes.

  19. Bilingual and monolingual children attend to different cues when learning new words

    Directory of Open Access Journals (Sweden)

    Eliana eColunga

    2012-05-01

    Full Text Available The way in which children learn language can vary depending on their language environment. Previous work suggests that bilingual children may be more sensitive to pragmatic cues from a speaker when learning new words than monolingual children are. On the other hand, monolingual children may rely more heavily on object properties than bilingual children do. In this study we manipulate these two sources of information within the same paradigm, using eye gaze as a pragmatic cue and similarity along different dimensions as an object cue. In the crucial condition, object and pragmatic cues were inconsistent with each other. Our results showed that in this ambiguous condition monolingual children attend more to object property cues whereas bilingual children attend more to pragmatic cues. Control conditions showed that monolingual children were sensitive to eye gaze and bilingual children were sensitive to similarity by shape; it was only when the cues were inconsistent that children’s preference for one or the other cue was apparent. Our results suggest that children learn to weigh different cues depending on their relative informativeness in their environment

  20. Executive Function Differences between Bilingual ArabicEnglish and Monolingual Arabic Children

    Science.gov (United States)

    Abdelgafar, Ghada Mohammed; Moawad, Ruba AbdelMatloub

    2015-01-01

    This study aimed to explore the differences between Arabic-English bilingual and monolingual Arabic children on a battery of executive functions. Prior research on the influence of bilingualism on cognitive abilities and executive functions has shown mixed results. Some results suggested that bilinguals perform significantly better than…

  1. Word Mapping and Executive Functioning in Young Monolingual and Bilingual Children

    Science.gov (United States)

    Bialystok, Ellen; Barac, Raluca; Blaye, Agnes; Poulin-Dubois, Diane

    2010-01-01

    The effect of bilingualism on the cognitive skills of young children was investigated by comparing performance of 162 children who belonged to one of two age groups (approximately 3- and 4.5-year-olds) and one of three language groups on a series of tasks examining executive control and word mapping. The children were monolingual English speakers,…

  2. Priming a Perspective in Spanish Monolingual Children: The Use of Syntactic Alternatives

    Science.gov (United States)

    Gamez, Perla B.; Shimpi, Priya M.; Waterfall, Heidi R.; Huttenlocher, Janellen

    2009-01-01

    We used a syntactic priming paradigm to show priming effects for active and passive forms in monolingual Spanish-speaking four- and five-year-olds. In a baseline experiment, we examined children's use of the "fue"-passive form and found it was virtually non-existent in their speech, although they produced important elements of the form. Children…

  3. Narrative Development among Language-Minority Children: The Role of Bilingual versus Monolingual Preschool Education

    Science.gov (United States)

    Schwartz, Mila; Shaul, Yehudit

    2013-01-01

    The development of script schema, as a source of narrative knowledge, is an essential stage in this knowledge construction. This study focused on the role of bilingual versus monolingual preschool education in the development of script schema knowledge in Russian (L1) and Hebrew (L2) among Russian/Hebrew-speaking children in Israel. The preschool…

  4. Developmental and communicative factors affecting VOT production in English and Arabic bilingual and monolingual speakers

    Science.gov (United States)

    Khattab, Ghada

    2001-05-01

    VOT patterns were investigated in the production of three Lebanese-English bilinguals' aged 5, 7, and 10, six aged-matched monolingual controls from the bilinguals' immediate communities, and the parents of bilinguals and monolinguals. The aim was to examine the extent to which children exposed to two languages acquire separate VOT patterns for each language and to determine the factors that affect such acquisition. Results showed that VOT patterns for each bilingual child differed significantly across the two languages. But while the contrast in English resembled a monolingual-like model, that for Arabic exhibited persisting developmental features; explanations were offered in terms of the relationship between input and complexity of voicing lead production. Evidence was used from developmental changes that were noted for two of the bilingual subjects over a period of 18 months. English code-switches produced by the bilinguals during Arabic sessions exhibited different VOT patterns from those produced during English sessions, which underlined the importance of taking the language context into consideration. Finally, results from monolinguals and bilinguals showed that the short lag categories for the two languages were different despite a degree of overlap. Such findings require finer divisions of the three universal VOT categories to account for language-specific patterns.

  5. The Use of Spanish by a Monolingual Kindergarten Teacher to Support English Language Learners

    Science.gov (United States)

    de Oliveira, Luciana C.; Gilmetdinova, Alsu; Pelaez-Morales, Carolina

    2016-01-01

    This article reports on a case study of a kindergarten, monolingual teacher and how she used Spanish, the home language of her Latino/a students who are English language learners (ELLs), in the classroom. The article focuses on how the teacher develops and uses her emerging knowledge of Spanish to scaffold students' learning, specifically when…

  6. Phonological Awareness and Vocabulary Performance of Monolingual and Bilingual Preschool Children with Hearing Loss

    Science.gov (United States)

    Lund, Emily; Werfel, Krystal L.; Schuele, C. Melanie

    2015-01-01

    This pilot study compared the phonological awareness skills and vocabulary performance of English monolingual and Spanish-English bilingual children with and without hearing loss. Preschool children with varying degrees of hearing loss (n = 18) and preschool children without hearing loss (n = 19) completed measures of phonological awareness and…

  7. Phoneme awareness, vocabulary and word decoding in monolingual and bilingual Dutch children

    NARCIS (Netherlands)

    Janssen, M.; Bosman, A.M.T.; Leseman, P.P.M.

    2013-01-01

    The aim of this study was to investigate whether bilingually raised children in the Netherlands, who receive literacy instruction in their second language only, show an advantage on Dutch phoneme-awareness tasks compared with monolingual Dutch-speaking children. Language performance of a group of 47

  8. Finding "le mot juste": Differences between Bilingual and Monolingual Children's Lexical Access in Comprehension and Production

    Science.gov (United States)

    Yan, Stephanie; Nicoladis, Elena

    2009-01-01

    By school age, some bilingual children can score equivalently to monolinguals in receptive vocabulary but still lag in expressive vocabulary. In this study, we test whether bilingual children have greater difficulty with lexical access, as has been reported for adult bilinguals. School-aged French-English bilingual children were given tests of…

  9. Differences in Word Recognition between Early Bilinguals and Monolinguals: Behavioral and ERP Evidence

    Science.gov (United States)

    Lehtonen, Minna; Hulten, Annika; Rodriguez-Fornells, Antoni; Cunillera, Toni; Tuomainen, Jyrki; Laine, Matti

    2012-01-01

    We investigated the behavioral and brain responses (ERPs) of bilingual word recognition to three fundamental psycholinguistic factors, frequency, morphology, and lexicality, in early bilinguals vs. monolinguals. Earlier behavioral studies have reported larger frequency effects in bilinguals' nondominant vs. dominant language and in some studies…

  10. Defying Monolingual Education: Alternative Bilingual Discourse Practices in Selected Coloured Schools in Cape Town

    Science.gov (United States)

    Banda, Felix

    2010-01-01

    This paper explores how bilingual learners and teachers challenge the monolingual discourses prescribed in language education policy and models in pursuit of voice and agency in classroom interaction. Through an examination of observation, interview and classroom interaction data in selected coloured primary and secondary schools in Cape Town, the…

  11. A Comparative Study of Metacognitive Awareness of Reading Strategies among Monolingual and Bilingual Iranian EFL Learners

    Directory of Open Access Journals (Sweden)

    Mohammad H. Keshavarz

    2014-08-01

    Full Text Available Some researchers argue that linguistic knowledge of one’s native language facilitates the acquisition of additional languages (see, for example, Cenoz & Valencia, 1994; Grenfell & Harris, 2006; Hakuta, 1990; Keshavarz & Astaneh, 2004. To contribute to this line of research, the present study investigated the probability of significant differences among monolingual and bilingual EFL learners in their awareness and perceived use of metacognitive reading strategies and in the subscales of these strategies (i.e., global, supportive, and problem-solving strategies. To achieve this goal, 100 Persian monolingual and 100 Azeri Turkish-Persian bilingual male and female second-year university students, majoring in English Literature, ELT, and Translation with the age range of 20-28 participated in the study.  Both groups took the Nelson Test of English language proficiency and completed the Metacognitive Reading Strategies Inventory (MARSI questionnaire. Participants’ reading strategy use was determined by asking them to rate their self-perceived reading ability in English on a 5-point Likert scale. The results of data analyses revealed significant differences between monolingual and bilingual learners in the use of overall and global metacognitive reading strategies with bilingual learners having greater awareness of these two strategies. However, no significant difference was found between monolingual and bilingual participants in the use of problem-solving and supportive metacognitive strategies.

  12. Guidelines for the Establishment and Development of Monolingual Thesauri for Information Retrieval.

    Science.gov (United States)

    United Nations Educational, Scientific, and Cultural Organization, Paris (France).

    These guidelines are applicable in the sector of information and documentation for the preparation and development of monolingual thesauri for information storage and retrieval, irrespective of the technical field being dealt with. No provision has been made for mathematical and structural chemical formulae. The guidelines are drafted for general…

  13. Monolingual and Bilingual Preschoolers' Use of Gestures to Interpret Ambiguous Pronouns

    Science.gov (United States)

    Yow, W. Quin

    2015-01-01

    Young children typically do not use order-of-mention to resolve ambiguous pronouns, but may do so if given additional cues, such as gestures. Additionally, this ability to utilize gestures may be enhanced in bilingual children, who may be more sensitive to such cues due to their unique language experience. We asked monolingual and bilingual…

  14. Executive Function Differences between Bilingual ArabicEnglish and Monolingual Arabic Children

    Science.gov (United States)

    Abdelgafar, Ghada Mohammed; Moawad, Ruba AbdelMatloub

    2015-01-01

    This study aimed to explore the differences between Arabic-English bilingual and monolingual Arabic children on a battery of executive functions. Prior research on the influence of bilingualism on cognitive abilities and executive functions has shown mixed results. Some results suggested that bilinguals perform significantly better than…

  15. The Use of Spanish by a Monolingual Kindergarten Teacher to Support English Language Learners

    Science.gov (United States)

    de Oliveira, Luciana C.; Gilmetdinova, Alsu; Pelaez-Morales, Carolina

    2016-01-01

    This article reports on a case study of a kindergarten, monolingual teacher and how she used Spanish, the home language of her Latino/a students who are English language learners (ELLs), in the classroom. The article focuses on how the teacher develops and uses her emerging knowledge of Spanish to scaffold students' learning, specifically when…

  16. Phoneme awareness, vocabulary and word decoding in monolingual and bilingual Dutch children

    NARCIS (Netherlands)

    Janssen, M.; Bosman, A.M.T.; Leseman, P.P.M.

    2013-01-01

    The aim of this study was to investigate whether bilingually raised children in the Netherlands, who receive literacy instruction in their second language only, show an advantage on Dutch phoneme-awareness tasks compared with monolingual Dutch-speaking children. Language performance of a group of 47

  17. The Influence of Emotional Arousal on Affective Priming in Monolingual and Bilingual Speakers

    Science.gov (United States)

    Altarriba, Jeanette; Canary, Tina M.

    2004-01-01

    The activation of arousal components for emotion-laden words in English (e.g. kiss, death) was examined in two groups of participants: English monolinguals and Spanish-English bilinguals. In Experiment 1, emotion-laden words were rated on valence and perceived arousal. These norms were used to construct prime-target word pairs that were used in…

  18. Differences in Word Recognition between Early Bilinguals and Monolinguals: Behavioral and ERP Evidence

    Science.gov (United States)

    Lehtonen, Minna; Hulten, Annika; Rodriguez-Fornells, Antoni; Cunillera, Toni; Tuomainen, Jyrki; Laine, Matti

    2012-01-01

    We investigated the behavioral and brain responses (ERPs) of bilingual word recognition to three fundamental psycholinguistic factors, frequency, morphology, and lexicality, in early bilinguals vs. monolinguals. Earlier behavioral studies have reported larger frequency effects in bilinguals' nondominant vs. dominant language and in some studies…

  19. Post-Monolingual Research Methodology: Multilingual Researchers Democratizing Theorizing and Doctoral Education

    Directory of Open Access Journals (Sweden)

    Michael Singh

    2017-02-01

    Full Text Available This paper reports on the ground-breaking research in the study of languages in doctoral education. It argues for democratizing the production and dissemination of original contributions to knowledge through activating and mobilizing multilingual Higher Degree Researchers’ (HDRs capabilities for theorizing through them using their full linguistic repertoire. This paper contributes to this study’s development of post-monolingual research methodology which provides a theoretic-pedagogical framework for multilingual HDRs (a to use their full linguistic repertoire in their research; (b to develop their capabilities for theorizing and (c to construct potentially valuable theoretical tools using metaphors, images, concepts and modes of critique. This paper is based on a longitudinal program of collaborative research whereby monolingual Anglophone and multilingual HDRs jointly developed their capabilities for theorizing through producing Anglo-Chinese analytical tools, and the associated pedagogies for using their languages in doctoral research. This longitudinal research program has been undertaken in the field of doctoral education to further a defining feature of democracy, namely linguistic diversity. This research has been conducted with the aims of promoting the multilingualism of Australian universities and activating linguistic communities of scholars to use their full linguistic repertoire in their research. The main finding arising from this program of research has been the development of post-monolingual research methodology which (a uses the divergences within and between languages to undertake theorizing and (b in co-existence with the tensions posed by monolingualism, especially the insistence on using extant theories available in only one language. Doctoral pedagogies of intellectual/racial equality provide multilingual HDRs with insights into the debates about the geopolitics governing the use of languages in the production and

  20. Vowels, consonants, and lexical tones: Sensitivity to phonological variation in monolingual Mandarin and bilingual English-Mandarin toddlers.

    Science.gov (United States)

    Wewalaarachchi, Thilanga D; Wong, Liang Hui; Singh, Leher

    2017-03-02

    Although bilingual learners represent the linguistic majority, much less is known about their lexical processing in comparison with monolingual learners. In the current study, bilingual and monolingual toddlers were compared on their ability to recognize familiar words. Children were presented with correct pronunciations and mispronunciations, with the latter involving a vowel, consonant, or tone substitution. A robust ability to recognize words when their labels were correctly pronounced was observed in both groups. Both groups also exhibited a robust ability to reject vowel, tone, and consonant mispronunciations as possible labels for familiar words. However, time course analyses revealed processing differences based on language background; relative to Mandarin monolinguals, Mandarin-English bilingual toddlers demonstrated reduced efficiency in recognizing correctly pronounced words. With respect to mispronunciations, Mandarin-English bilingual learners demonstrated reduced sensitivity to tone mispronunciations relative to Mandarin monolingual toddlers. Moreover, the relative cost of mispronunciations differed for monolingual and bilingual toddlers. Monolingual toddlers demonstrated least sensitivity to consonants followed by vowels and tones, whereas bilingual toddlers demonstrated least sensitivity to tone, followed by consonants and then by vowels. Time course analyses revealed that both groups were sensitive to vowel and consonant variation. Results reveal both similarities and differences in monolingual and bilingual learners' processing of familiar words in Mandarin Chinese.

  1. Language Proficiency and Sustained Attention in Monolingual and Bilingual Children with and without Language Impairment.

    Science.gov (United States)

    Boerma, Tessel; Leseman, Paul; Wijnen, Frank; Blom, Elma

    2017-01-01

    Background: The language profiles of children with language impairment (LI) and bilingual children can show partial, and possibly temporary, overlap. The current study examined the persistence of this overlap over time. Furthermore, we aimed to better understand why the language profiles of these two groups show resemblance, testing the hypothesis that the language difficulties of children with LI reflect a weakened ability to maintain attention to the stream of linguistic information. Consequent incomplete processing of language input may lead to delays that are similar to those originating from reductions in input frequency. Methods: Monolingual and bilingual children with and without LI (N = 128), aged 5-8 years old, participated in this study. Dutch receptive vocabulary and grammatical morphology were assessed at three waves. In addition, auditory and visual sustained attention were tested at wave 1. Mediation analyses were performed to examine relationships between LI, sustained attention, and language skills. Results: Children with LI and bilingual children were outperformed by their typically developing (TD) and monolingual peers, respectively, on vocabulary and morphology at all three waves. The vocabulary difference between monolinguals and bilinguals decreased over time. In addition, children with LI had weaker auditory and visual sustained attention skills relative to TD children, while no differences between monolinguals and bilinguals emerged. Auditory sustained attention mediated the effect of LI on vocabulary and morphology in both the monolingual and bilingual groups of children. Visual sustained attention only acted as a mediator in the bilingual group. Conclusion: The findings from the present study indicate that the overlap between the language profiles of children with LI and bilingual children is particularly large for vocabulary in early (pre)school years and reduces over time. Results furthermore suggest that the overlap may be explained by

  2. Language Proficiency and Sustained Attention in Monolingual and Bilingual Children with and without Language Impairment

    Directory of Open Access Journals (Sweden)

    Tessel Boerma

    2017-07-01

    Full Text Available Background: The language profiles of children with language impairment (LI and bilingual children can show partial, and possibly temporary, overlap. The current study examined the persistence of this overlap over time. Furthermore, we aimed to better understand why the language profiles of these two groups show resemblance, testing the hypothesis that the language difficulties of children with LI reflect a weakened ability to maintain attention to the stream of linguistic information. Consequent incomplete processing of language input may lead to delays that are similar to those originating from reductions in input frequency.Methods: Monolingual and bilingual children with and without LI (N = 128, aged 5–8 years old, participated in this study. Dutch receptive vocabulary and grammatical morphology were assessed at three waves. In addition, auditory and visual sustained attention were tested at wave 1. Mediation analyses were performed to examine relationships between LI, sustained attention, and language skills.Results: Children with LI and bilingual children were outperformed by their typically developing (TD and monolingual peers, respectively, on vocabulary and morphology at all three waves. The vocabulary difference between monolinguals and bilinguals decreased over time. In addition, children with LI had weaker auditory and visual sustained attention skills relative to TD children, while no differences between monolinguals and bilinguals emerged. Auditory sustained attention mediated the effect of LI on vocabulary and morphology in both the monolingual and bilingual groups of children. Visual sustained attention only acted as a mediator in the bilingual group.Conclusion: The findings from the present study indicate that the overlap between the language profiles of children with LI and bilingual children is particularly large for vocabulary in early (preschool years and reduces over time. Results furthermore suggest that the overlap may be

  3. T-complex measures in bilingual Spanish-English and Turkish-German children and monolingual peers

    Science.gov (United States)

    Rinker, Tanja; Shafer, Valerie L.; Kiefer, Markus; Vidal, Nancy; Yu, Yan H.

    2017-01-01

    Background Lateral temporal neural measures (Na and T-complex Ta and Tb) of the auditory evoked potential (AEP) index maturation of auditory/speech processing. These measures are also sensitive to language experience in adults. This paper examined neural responses to a vowel sound at temporal electrodes in four- to five-year-old Spanish-English bilinguals and English monolinguals and in five- to six-year-old Turkish-German bilinguals and German monolinguals. The goal was to determine whether obligatory AEPs at temporal electrode sites were modulated by language experience. Language experience was defined in terms of monolingual versus bilingual status as well as the amount and quality of the bilingual language experience. Method AEPs were recorded at left and right temporal electrode sites to a 250-ms vowel [Ɛ] from 20 monolingual (American)-English and 18 Spanish-English children from New York City, and from 11 Turkish-German and 13 monolingual German children from Ulm, Germany. Language background information and standardized verbal and non-verbal test scores were obtained for the children. Results The results revealed differences in temporal AEPs (Na and Ta of the T-complex) between monolingual and bilingual children. Specifically, bilingual children showed smaller and/or later peak amplitudes than the monolingual groups. Ta-amplitude distinguished monolingual and bilingual children best at right electrode sites for both the German and American groups. Amount of experience and type of experience with the target language (English and German) influenced processing. Conclusions The finding of reduced amplitudes at the Ta latency for bilingual compared to monolingual children indicates that language specific experience, and not simply maturational factors, influences development of the neural processes underlying the Ta AEP, and suggests that lateral temporal cortex has an important role in language-specific speech perception development. PMID:28267801

  4. Development of a Medical-text Parsing Algorithm Based on Character Adjacent Probability Distribution for Japanese Radiology Reports

    National Research Council Canada - National Science Library

    N. Nishimoto; S. Terae; M. Uesugi; K. Ogasawara; T. Sakurai

    2008-01-01

    Objectives: The objectives of this study were to investigate the transitional probability distribution of medical term boundaries between characters and to develop a parsing algorithm specifically for medical texts. Methods...

  5. A time sharing cross-sectional study of monolinguals and bilinguals at different levels of second language acquisition.

    Science.gov (United States)

    Green, A

    1986-10-01

    Several methodological factors associated with the concurrent activities (finger-tapping) paradigm were considered in a cross-sectional study investigating cerebral patterns of asymmetry in three groups of English-speaking non-Hispanic dextral males at three levels of second language (Spanish) acquisition and one control group of monolinguals. Results revealed the fluent bilinguals to be bilateral and significantly different from other groups for native language tasks in English. Moreover, a priori contrasts indicate that greater right- than left-hand disruption in concurrent tapping may be typical of monolinguals, but can be influenced by other factors. Monolingual reliability test-retest correlations were .77 and .47.

  6. Revise and resubmit: How real-time parsing limitations influence grammar acquisition

    Science.gov (United States)

    Pozzan, Lucia; Trueswell, John C.

    2015-01-01

    We present the results from a three-day artificial language learning study on adults. The study examined whether sentence-parsing limitations, in particular, difficulties revising initial syntactic/semantic commitments during comprehension, shape learners’ ability to acquire a language. Findings show that both comprehension and production of morphology pertaining to sentence argument structure are delayed when this morphology consistently appears at the end, rather than at the beginning, of sentences in otherwise identical grammatical systems. This suggests that real-time processing constraints impact acquisition; morphological cues that tend to guide linguistic analyses are easier to learn than cues that revise these analyses. Parallel performance in production and comprehension indicates that parsing constraints affect grammatical acquisition, not just real-time commitments. Properties of the linguistic system (e.g., ordering of cues within a sentence) interact with the properties of the cognitive system (cognitive control and conflict-resolution abilities) and together affect language acquisition. PMID:26026607

  7. Apportioning Development Effort in a Probabilistic LR Parsing System through Evaluation

    CERN Document Server

    Carroll, J; Carroll, John; Briscoe, Ted

    1996-01-01

    We describe an implemented system for robust domain-independent syntactic parsing of English, using a unification-based grammar of part-of-speech and punctuation labels coupled with a probabilistic LR parser. We present evaluations of the system's performance along several different dimensions; these enable us to assess the contribution that each individual part is making to the success of the system as a whole, and thus prioritise the effort to be devoted to its further enhancement. Currently, the system is able to parse around 80% of sentences in a substantial corpus of general text containing a number of distinct genres. On a random sample of 250 such sentences the system has a mean crossing bracket rate of 0.71 and recall and precision of 83% and 84% respectively when evaluated against manually-disambiguated analyses.

  8. Revise and resubmit: how real-time parsing limitations influence grammar acquisition.

    Science.gov (United States)

    Pozzan, Lucia; Trueswell, John C

    2015-08-01

    We present the results from a three-day artificial language learning study on adults. The study examined whether sentence-parsing limitations, in particular, difficulties revising initial syntactic/semantic commitments during comprehension, shape learners' ability to acquire a language. Findings show that both comprehension and production of morphology pertaining to sentence argument structure are delayed when this morphology consistently appears at the end, rather than at the beginning, of sentences in otherwise identical grammatical systems. This suggests that real-time processing constraints impact acquisition; morphological cues that tend to guide linguistic analyses are easier to learn than cues that revise these analyses. Parallel performance in production and comprehension indicates that parsing constraints affect grammatical acquisition, not just real-time commitments. Properties of the linguistic system (e.g., ordering of cues within a sentence) interact with the properties of the cognitive system (cognitive control and conflict-resolution abilities) and together affect language acquisition.

  9. Aplicação da teoria de Parse no relacionamento enfermeiro-indivíduo Nurse-person relationship based on Parse's theory

    Directory of Open Access Journals (Sweden)

    Sarah Nancy Deggau Hegeto de Souza

    2000-09-01

    Full Text Available O estudo tem o objetivo de relatar experiências de situações vividas pelas autoras ao aplicarem os fundamentos da teoria de Parse "Human Becoming" e apresentar seus princípios e conceitos visando divulgá-la. Após estudo teórico para a compreensão da teoria, os seus princípios foram aplicados na prática. As autoras constataram que isto implica em mudança de valores e crenças do enfermeiro, transformando sua visão sobre o ser humano e sua saúde, tornando o cuidado mais humanístico. A experiência vivenciada possibilitou amadurecimento pessoal e profissional das autoras.This study has the purpose of telling experiences lived by the authors, using the foundations of Parse's theory, "Human Becoming". They observed the study of the theory and its aplication in nursing practice claim for changes in nurse's values and beliefs, transforming her vision about human being and health, giving a more humanistic care. This lived experience allowed personal and professional maturation for the authors and stimulated them to divulge the theory to contribute for the nursing growth and improve the person's quality of life.

  10. Automatic extraction of syntactic patterns for dependency parsing in noun phrase chunks

    Directory of Open Access Journals (Sweden)

    Mihaela Colhon

    2014-05-01

    Full Text Available In this article we present a method for automatic extraction of syntactic patterns that are used to develop a dependency parsing method. The patterns have been extracted from a corpus automatically annotated for tokens, sentences’ borders, parts of speech and noun phrases, and manually annotated for dependency relations between words. The evaluation shows promising results in the case of an order-free language.

  11. The market future of automated price parsing systems for the electric power

    Directory of Open Access Journals (Sweden)

    Elena Zhuravleva

    2013-03-01

    Full Text Available Application of automated control systems allows providing better control on energy resources consumption, improving accountability, optimizing costs of energy resources. There is a need for the automated system which unifies all competing service providers of electric power and creates the monitoring environment of services on the basis of parsing. In such integrated system data collection is carried out in a uniform electronic platform (environment based on the indicator “electric power service price”.

  12. 'Visual' parsing can be taught quickly without visual experience during critical periods.

    Science.gov (United States)

    Reich, Lior; Amedi, Amir

    2015-01-01

    Cases of invasive sight-restoration in congenital blind adults demonstrated that acquiring visual abilities is extremely challenging, presumably because visual-experience during critical-periods is crucial for learning visual-unique concepts (e.g. size constancy). Visual rehabilitation can also be achieved using sensory-substitution-devices (SSDs) which convey visual information non-invasively through sounds. We tested whether one critical concept--visual parsing, which is highly-impaired in sight-restored patients--can be learned using SSD. To this end, congenitally blind adults participated in a unique, relatively short (~70 hours), SSD-'vision' training. Following this, participants successfully parsed 2D and 3D visual objects. Control individuals naïve to SSDs demonstrated that while some aspects of parsing with SSD are intuitive, the blind's success could not be attributed to auditory processing alone. Furthermore, we had a unique opportunity to compare the SSD-users' abilities to those reported for sight-restored patients who performed similar tasks visually, and who had months of eyesight. Intriguingly, the SSD-users outperformed the patients on most criteria tested. These suggest that with adequate training and technologies, key high-order visual features can be quickly acquired in adulthood, and lack of visual-experience during critical-periods can be somewhat compensated for. Practically, these highlight the potential of SSDs as standalone-aids or combined with invasive restoration approaches.

  13. A Reordering Model Using a Source-Side Parse-Tree for Statistical Machine Translation

    Science.gov (United States)

    Hashimoto, Kei; Yamamoto, Hirofumi; Okuma, Hideo; Sumita, Eiichiro; Tokuda, Keiichi

    This paper presents a reordering model using a source-side parse-tree for phrase-based statistical machine translation. The proposed model is an extension of IST-ITG (imposing source tree on inversion transduction grammar) constraints. In the proposed method, the target-side word order is obtained by rotating nodes of the source-side parse-tree. We modeled the node rotation, monotone or swap, using word alignments based on a training parallel corpus and source-side parse-trees. The model efficiently suppresses erroneous target word orderings, especially global orderings. Furthermore, the proposed method conducts a probabilistic evaluation of target word reorderings. In English-to-Japanese and English-to-Chinese translation experiments, the proposed method resulted in a 0.49-point improvement (29.31 to 29.80) and a 0.33-point improvement (18.60 to 18.93) in word BLEU-4 compared with IST-ITG constraints, respectively. This indicates the validity of the proposed reordering model.

  14. Incremental Learning of Context Free Grammars by Parsing-Based Rule Generation and Rule Set Search

    Science.gov (United States)

    Nakamura, Katsuhiko; Hoshina, Akemi

    This paper discusses recent improvements and extensions in Synapse system for inductive inference of context free grammars (CFGs) from sample strings. Synapse uses incremental learning, rule generation based on bottom-up parsing, and the search for rule sets. The form of production rules in the previous system is extended from Revised Chomsky Normal Form A→βγ to Extended Chomsky Normal Form, which also includes A→B, where each of β and γ is either a terminal or nonterminal symbol. From the result of bottom-up parsing, a rule generation mechanism synthesizes minimum production rules required for parsing positive samples. Instead of inductive CYK algorithm in the previous version of Synapse, the improved version uses a novel rule generation method, called ``bridging,'' which bridges the lacked part of the derivation tree for the positive string. The improved version also employs a novel search strategy, called serial search in addition to minimum rule set search. The synthesis of grammars by the serial search is faster than the minimum set search in most cases. On the other hand, the size of the generated CFGs is generally larger than that by the minimum set search, and the system can find no appropriate grammar for some CFL by the serial search. The paper shows experimental results of incremental learning of several fundamental CFGs and compares the methods of rule generation and search strategies.

  15. The role of nonverbal working memory in morphosyntactic processing by school-aged monolingual and bilingual children.

    Science.gov (United States)

    Gangopadhyay, Ishanti; Davidson, Meghan M; Ellis Weismer, Susan; Kaushanskaya, Margarita

    2016-02-01

    The current study examined the relationship between nonverbal working memory and morphosyntactic processing in monolingual native speakers of English and bilingual speakers of English and Spanish. We tested 42 monolingual children and 42 bilingual children between the ages of 8 and 10years matched on age and nonverbal IQ. Children were administered an auditory Grammaticality Judgment task in English to measure morphosyntactic processing and a visual N-Back task and Corsi Blocks task to measure nonverbal working memory capacity. Analyses revealed that monolinguals were more sensitive to English morphosyntactic information than bilinguals, but the groups did not differ in reaction times or response bias. Furthermore, higher nonverbal working memory capacity was associated with greater sensitivity to morphosyntactic violations in bilinguals but not in monolinguals. The findings suggest that nonverbal working memory skills link more tightly to syntactic processing in populations with lower levels of language knowledge.

  16. The role of non-verbal working memory in morphosyntactic processing by school-aged monolingual and bilingual children

    Science.gov (United States)

    Gangopadhyay, Ishanti; Davidson, Meghan M.; Weismer, Susan Ellis; Kaushanskaya, Margarita

    2015-01-01

    The current study examined the relationship between non-verbal working memory and morphosyntactic processing in monolingual native speakers of English and bilingual speakers of English and Spanish. We tested 42 monolingual children and 42 bilingual children between the ages of 8 and 10, matched on age and non-verbal IQ. Children were administered an auditory Grammaticality Judgment task in English to measure morphosyntatic processing, and a visual N-Back task and a Corsi Blocks task to measure non-verbal working memory capacity. Analyses revealed that monolinguals were more sensitive to English morphosyntactic information than bilinguals, but the groups did not differ in reaction times or response bias. Furthermore, higher non-verbal working memory capacity was associated with greater sensitivity to morphosyntactic violations in bilinguals, but not in monolinguals. The findings suggest that non-verbal working memory skills link more tightly to syntactic processing in populations with lower levels of language knowledge. PMID:26550957

  17. "gnparser": a powerful parser for scientific names based on Parsing Expression Grammar.

    Science.gov (United States)

    Mozzherin, Dmitry Y; Myltsev, Alexander A; Patterson, David J

    2017-05-26

    Scientific names in biology act as universal links. They allow us to cross-reference information about organisms globally. However variations in spelling of scientific names greatly diminish their ability to interconnect data. Such variations may include abbreviations, annotations, misspellings, etc. Authorship is a part of a scientific name and may also differ significantly. To match all possible variations of a name we need to divide them into their elements and classify each element according to its role. We refer to this as 'parsing' the name. Parsing categorizes name's elements into those that are stable and those that are prone to change. Names are matched first by combining them according to their stable elements. Matches are then refined by examining their varying elements. This two stage process dramatically improves the number and quality of matches. It is especially useful for the automatic data exchange within the context of "Big Data" in biology. We introduce Global Names Parser (gnparser). It is a Java tool written in Scala language (a language for Java Virtual Machine) to parse scientific names. It is based on a Parsing Expression Grammar. The parser can be applied to scientific names of any complexity. It assigns a semantic meaning (such as genus name, species epithet, rank, year of publication, authorship, annotations, etc.) to all elements of a name. It is able to work with nested structures as in the names of hybrids. gnparser performs with ≈99% accuracy and processes 30 million name-strings/hour per CPU thread. The gnparser library is compatible with Scala, Java, R, Jython, and JRuby. The parser can be used as a command line application, as a socket server, a web-app or as a RESTful HTTP-service. It is released under an Open source MIT license. Global Names Parser (gnparser) is a fast, high precision tool for biodiversity informaticians and biologists working with large numbers of scientific names. It can replace expensive and error

  18. Psychotherapy across languages: beliefs, attitudes and\\ud practices of monolingual and multilingual therapists\\ud with their multilingual patients

    OpenAIRE

    Costa, B; Dewaele, Jean-Marc

    2012-01-01

    The present study investigates beliefs, attitudes and practices of 101 monolingual and multilingual therapists in their interactions with multilingual patients. We adopted a\\ud mixed-method approach, using an on-line questionnaire with 27 closed questions which were analysed quantitatively and informed questions in interviews with one monolingual\\ud and two multilingual therapists. A principal component analysis yielded a four-factor solution accounting for 41% of the variance. The first dime...

  19. Differential Allocation of Attention During Speech Perception in Monolingual and Bilingual Listeners.

    Science.gov (United States)

    Astheimer, Lori B; Berkes, Matthias; Bialystok, Ellen

    Attention is required during speech perception to focus processing resources on critical information. Previous research has shown that bilingualism modifies attentional processing in nonverbal domains. The current study used event-related potentials (ERPs) to determine whether bilingualism also modifies auditory attention during speech perception. We measured attention to word onsets in spoken English for monolinguals and Chinese-English bilinguals. Auditory probes were inserted at four times in a continuous narrative: concurrent with word onset, 100 ms before or after onset, and at random control times. Greater attention was indexed by an increase in the amplitude of the early negativity (N1). Among monolinguals, probes presented after word onsets elicited a larger N1 than control probes, replicating previous studies. For bilinguals, there was no N1 difference for probes at different times around word onsets, indicating less specificity in allocation of attention. These results suggest that bilingualism shapes attentional strategies during English speech comprehension.

  20. Differential Allocation of Attention During Speech Perception in Monolingual and Bilingual Listeners

    Science.gov (United States)

    Astheimer, Lori B.; Berkes, Matthias; Bialystok, Ellen

    2016-01-01

    Attention is required during speech perception to focus processing resources on critical information. Previous research has shown that bilingualism modifies attentional processing in nonverbal domains. The current study used event-related potentials (ERPs) to determine whether bilingualism also modifies auditory attention during speech perception. We measured attention to word onsets in spoken English for monolinguals and Chinese-English bilinguals. Auditory probes were inserted at four times in a continuous narrative: concurrent with word onset, 100 ms before or after onset, and at random control times. Greater attention was indexed by an increase in the amplitude of the early negativity (N1). Among monolinguals, probes presented after word onsets elicited a larger N1 than control probes, replicating previous studies. For bilinguals, there was no N1 difference for probes at different times around word onsets, indicating less specificity in allocation of attention. These results suggest that bilingualism shapes attentional strategies during English speech comprehension. PMID:27110579

  1. Neural differences between monolinguals and early bilinguals in their native language during comprehension.

    Science.gov (United States)

    Román, P; González, J; Ventura-Campos, N; Rodríguez-Pujadas, A; Sanjuán, A; Ávila, C

    2015-11-01

    Research has shown that semantic processing of sentences engages more activity in the bilingual compared to the monolingual brain and, more specifically, in the inferior frontal gyrus. The present study aims to extend those results and examines whether semantic and also grammatical sentence processing involve different cerebral structures when testing in the native language. In this regard, highly proficient Spanish/Catalan bilinguals and Spanish monolinguals made grammatical and semantic judgments in Spanish while being scanned. Results showed that both types of judgments recruited more cerebral activity for bilinguals in language-related areas including the superior and middle temporal gyri. Such neural differences co-occurred with similar performance at the behavioral level. Taken together, these data suggest that early bilingualism shapes the brain and cognitive processes in sentence comprehension even in their native language; on the other hand, they indicate that brain over activation in bilinguals is not constrained to a specific area.

  2. Language differences between monolingual English and bilingual English-Spanish young children with autism spectrum disorders.

    Science.gov (United States)

    Valicenti-McDermott, Maria; Tarshis, Nancy; Schouls, Melissa; Galdston, Molly; Hottinger, Kathryn; Seijo, Rosa; Shulman, Lisa; Shinnar, Shlomo

    2013-07-01

    Bilingualism is common worldwide and increasingly prevalent, but there is little information about bilingual children with autism spectrum disorder. The goal of the study was to compare expressive and receptive language skills in monolingual English and bilingual English-Spanish children with autism spectrum disorder. A review of the multidisciplinary evaluations done in toddlers who were diagnosed with autism spectrum disorder at a university-affiliated center between 2003 and 2010 was performed. Data included demographics, developmental testing, autistic characteristics, and expressive and receptive language skills, obtained from formal speech and language evaluation. A total of 80 toddlers were identified, 40 classified as bilingual English-Spanish. Compared with monolinguals, bilingual children were more likely to vocalize and utilize gestures, with no other differences in language skills. There were no differences in cognitive functioning and autistic features between the groups. In this study, bilingualism did not negatively affect language development in young children with autism spectrum disorder.

  3. Evaluation of some Information Retrieval models for Gujarati Ad hoc Monolingual Tasks

    OpenAIRE

    J., Joshi Hardik; Jyoti, Pareek

    2012-01-01

    This paper describes the work towards Gujarati Ad hoc Monolingual Retrieval task for widely used Information Retrieval (IR) models. We present an indexing baseline for the Gujarati Language represented by Mean Average Precision (MAP) values. Our objective is to obtain a relative picture of a better IR model for Gujarati Language. Results show that Classical IR models like Term Frequency Inverse Document Frequency (TF_IDF) performs better when compared to few recent probabilistic IR models. Th...

  4. Differential Allocation of Attention During Speech Perception in Monolingual and Bilingual Listeners

    OpenAIRE

    Astheimer, Lori B.; Berkes, Matthias; Bialystok, Ellen

    2015-01-01

    Attention is required during speech perception to focus processing resources on critical information. Previous research has shown that bilingualism modifies attentional processing in nonverbal domains. The current study used event-related potentials (ERPs) to determine whether bilingualism also modifies auditory attention during speech perception. We measured attention to word onsets in spoken English for monolinguals and Chinese-English bilinguals. Auditory probes were inserted at four times...

  5. The moderating effect of orthographic consistency on oral vocabulary learning in monolingual and bilingual children.

    Science.gov (United States)

    Jubenville, Kathleen; Sénéchal, Monique; Malette, Melissa

    2014-10-01

    Two studies were conducted to assess whether (a) the incidental presence of print facilitates the acquisition of oral vocabulary, (b) the facilitative effect of print is moderated by phoneme-to-grapheme consistency, and (c) the findings obtained with monolingual children generalize to bilingual children. In total, 71 monolingual French-speaking children (M age = 9 years 2 months) in Study 1 and 64 bilingual children (M age = 9 years 3 months) in Study 2 participated in one of three conditions: consistent print, inconsistent print, or no print. Children were to learn novel labels for unfamiliar objects in a paired-associate paradigm. In both studies, print facilitated the acquisition and recall of expressive vocabulary. The effect of print consistency, however, varied across studies. As expected, monolingual children exposed to consistent print learned more novel labels than children exposed to inconsistent print. In contrast, bilingual children exposed to inconsistent print learned and recalled more labels than children exposed to consistent print. These intriguing findings might be due to differences in attention allocation during training.

  6. Bilinguals Have Different Hemispheric Lateralization in Visual Word Processing from Monolinguals

    Directory of Open Access Journals (Sweden)

    Sze-Man Lam

    2011-05-01

    Full Text Available Previous bilingual studies showed reduced hemispheric asymmetry in visual tasks such as face perception in bilinguals compared with monolinguals, suggesting experience in reading one or two languages could be a modulating factor. Here we examined whether difference in hemispheric asymmetry in visual tasks can also be observed in bilinguals who have different language backgrounds. We compared the behavior of three language groups in a tachistoscopic English word sequential matching task: English monolinguals (or alphabetic monolinguals, A-Ms, bilinguals with an alphabetic-L1 and English-L2 (alphabetic-alphabetic bilinguals, AA-Bs, and bilinguals with Chinese-L1 and English-L2 (logographic-alphabetic bilinguals, LA-Bs. The results showed that AA-Bs had a stronger right visual field/ left hemispheric (LH advantage than A-Ms and LA-Bs, suggesting that different language learning experiences can influence how visual words are processed in the brain. In addition, we showed that this effect could be accounted for by a computational model that implements a theory of hemispheric asymmetry in perception (i.e., the Double Filtering by Frequency theory; Ivry & Robertson, 1998; the modeling data suggested that this difference may be due to both the difference in participants' vocabulary size and the difference in word-to-sound mapping between alphabetic and logographic languages.

  7. Age of language learning shapes brain structure: a cortical thickness study of bilingual and monolingual individuals.

    Science.gov (United States)

    Klein, Denise; Mok, Kelvin; Chen, Jen-Kai; Watkins, Kate E

    2014-04-01

    We examined the effects of learning a second language (L2) on brain structure. Cortical thickness was measured in the MRI datasets of 22 monolinguals and 66 bilinguals. Some bilingual subjects had learned both languages simultaneously (0-3 years) while some had learned their L2 after achieving proficiency in their first language during either early (4-7 years) or late childhood (8-13 years). Later acquisition of L2 was associated with significantly thicker cortex in the left inferior frontal gyrus (IFG) and thinner cortex in the right IFG. These effects were seen in the group comparisons of monolinguals, simultaneous bilinguals and early and late bilinguals. Within the bilingual group, significant correlations between age of acquisition of L2 and cortical thickness were seen in the same regions: cortical thickness correlated with age of acquisition positively in the left IFG and negatively in the right IFG. Interestingly, the monolinguals and simultaneous bilinguals did not differ in cortical thickness in any region. Our results show that learning a second language after gaining proficiency in the first language modifies brain structure in an age-dependent manner whereas simultaneous acquisition of two languages has no additional effect on brain development.

  8. Perception of scene-relative object movement: Optic flow parsing and the contribution of monocular depth cues.

    Science.gov (United States)

    Warren, Paul A; Rushton, Simon K

    2009-05-01

    We have recently suggested that the brain uses its sensitivity to optic flow in order to parse retinal motion into components arising due to self and object movement (e.g. Rushton, S. K., & Warren, P. A. (2005). Moving observers, 3D relative motion and the detection of object movement. Current Biology, 15, R542-R543). Here, we explore whether stereo disparity is necessary for flow parsing or whether other sources of depth information, which could theoretically constrain flow-field interpretation, are sufficient. Stationary observers viewed large field of view stimuli containing textured cubes, moving in a manner that was consistent with a complex observer movement through a stationary scene. Observers made speeded responses to report the perceived direction of movement of a probe object presented at different depths in the scene. Across conditions we varied the presence or absence of different binocular and monocular cues to depth order. In line with previous studies, results consistent with flow parsing (in terms of both perceived direction and response time) were found in the condition in which motion parallax and stereoscopic disparity were present. Observers were poorer at judging object movement when depth order was specified by parallax alone. However, as more monocular depth cues were added to the stimulus the results approached those found when the scene contained stereoscopic cues. We conclude that both monocular and binocular static depth information contribute to flow parsing. These findings are discussed in the context of potential architectures for a model of the flow parsing mechanism.

  9. A hierarchical methodology for urban facade parsing from TLS point clouds

    Science.gov (United States)

    Li, Zhuqiang; Zhang, Liqiang; Mathiopoulos, P. Takis; Liu, Fangyu; Zhang, Liang; Li, Shuaipeng; Liu, Hao

    2017-01-01

    The effective and automated parsing of building facades from terrestrial laser scanning (TLS) point clouds of urban environments is an important research topic in the GIS and remote sensing fields. It is also challenging because of the complexity and great variety of the available 3D building facade layouts as well as the noise and data missing of the input TLS point clouds. In this paper, we introduce a novel methodology for the accurate and computationally efficient parsing of urban building facades from TLS point clouds. The main novelty of the proposed methodology is that it is a systematic and hierarchical approach that considers, in an adaptive way, the semantic and underlying structures of the urban facades for segmentation and subsequent accurate modeling. Firstly, the available input point cloud is decomposed into depth planes based on a data-driven method; such layer decomposition enables similarity detection in each depth plane layer. Secondly, the labeling of the facade elements is performed using the SVM classifier in combination with our proposed BieS-ScSPM algorithm. The labeling outcome is then augmented with weak architectural knowledge. Thirdly, least-squares fitted normalized gray accumulative curves are applied to detect regular structures, and a binarization dilation extraction algorithm is used to partition facade elements. A dynamic line-by-line division is further applied to extract the boundaries of the elements. The 3D geometrical façade models are then reconstructed by optimizing facade elements across depth plane layers. We have evaluated the performance of the proposed method using several TLS facade datasets. Qualitative and quantitative performance comparisons with several other state-of-the-art methods dealing with the same facade parsing problem have demonstrated its superiority in performance and its effectiveness in improving segmentation accuracy.

  10. From news to comment: Resources and benchmarks for parsing the language of web 2.0

    OpenAIRE

    Foster, Jennifer; Cetinoglu, Ozlem; Wagner, Joachim; Le Roux, Joseph; Nivre, Joakim; Hogan, Deirdre; Genabith, Josef van

    2011-01-01

    We investigate the problem of parsing the noisy language of social media. We evaluate four all-Street-Journal-trained statistical parsers (Berkeley, Brown, Malt and MST) on a new dataset containing 1,000 phrase structure trees for sentences from microblogs (tweets) and discussion forum posts. We compare the four parsers on their ability to produce Stanford dependencies for these Web 2.0 sentences. We find that the parsers have a particular problem with tweets and that a substantial part of th...

  11. The living experience of difficulty telling the truth: a parse method study.

    Science.gov (United States)

    Baumann, Steven L

    2015-01-01

    The purpose of this study was to investigate the living experience of difficulty telling the truth. Parse's research method was used to answer the question: What is the structure of the living experience of difficulty telling the truth? The participants were 9 nurses and 1 physician. The central finding of the study is the structure: difficulty telling the truth is uncomfortable dialogues with knowing silences arise with anguishing deliberations anticipating potential adversity, while contemplating intentional withholding gives rise to calm acquiescence. The findings are discussed in relation to the humanbecoming school of thought and extant literature. © The Author(s) 2014.

  12. 合成目标化合物析分系统%Target Parsing System

    Institute of Scientific and Technical Information of China (English)

    王利莎; 袁身刚; 郑崇直

    2001-01-01

    An experimental Target Parsing System (TPS) was built up on the basis of the computing model of chemical reaction processing. It is mainly used for testing and optimizing the selection and representation of reaction rules. The working logic used by TPS basically imitates human thinking process. It carries out the retrosynthetic analysis in 3 steps:finding the strategic bonds by parsing the target, converting the target into the precursors (synthons) according to the strategic bonds, and determining the availability of the precursors by searching against a material database. The results tested by using some small molecules and natural products indicated that TPS can arrive satisfactory results of the retrosynthetic analysis. TPS, limited by its amount of knowledge, is still away from a practical tool,particularly for the parsing of complex compounds. However, it is anticipated that TPS would be a real Computer-Assisted Synthesis Design System by expanding its knowledge and refining its logic.%在化学反应处理的计算模型的基础上,完成了一个实验性的目标化合物析分系统(Target Parsing System, TPS)。目前它主要用于测试和优化反应规则的选择和表述方法。TPS的工作逻辑基本上模仿人的思维过程,它通过对目标分子析分找出谋略键,根据谋略键将目标分子分拆成前体,再通过对原料库的检索确定是否已是可得原料等3个步骤完成反合成分析。通过对一些小分子和天然产物的测试,表明它已能给出令人满意的反合成分析结果。由于TPS在知识量上的局限性,对复杂化合物的析分还不可能达到实用水平。但是,可以预见通过对知识库的扩充和对TPS的不断完善,它有望发展成为一个真正意义上的计算机辅助合成设计系统。

  13. PyParse: a semiautomated system for scoring spoken recall data.

    Science.gov (United States)

    Solway, Alec; Geller, Aaron S; Sederberg, Per B; Kahana, Michael J

    2010-02-01

    Studies of human memory often generate data on the sequence and timing of recalled items, but scoring such data using conventional methods is difficult or impossible. We describe a Python-based semiautomated system that greatly simplifies this task. This software, called PyParse, can easily be used in conjunction with many common experiment authoring systems. Scored data is output in a simple ASCII format and can be accessed with the programming language of choice, allowing for the identification of features such as correct responses, prior-list intrusions, extra-list intrusions, and repetitions.

  14. How bilingualism shapes the functional architecture of the brain: A study on executive control in early bilinguals and monolinguals.

    Science.gov (United States)

    Costumero, Víctor; Rodríguez-Pujadas, Aina; Fuentes-Claramonte, Paola; Ávila, César

    2015-12-01

    The existence of a behavioral advantage of bilinguals over monolinguals during executive tasks is controversial. A new approach to this issue is to investigate the effect of bilingualism on neural control when performing these tasks as a window to understand when behavioral differences are produced. Here, we tested if early bilinguals use more language-related networks than monolinguals while performing a go/no-go task that includes infrequent no-go and go trials. The RTs and accuracy in both groups did not differ. An independent component analyses (ICA) revealed, however, that bilinguals used the left fronto-parietal network and the salience network more than monolinguals while processing go infrequent cues and no-go cues, respectively. It was noteworthy that the modulation of these networks had opposite correlates with performance in bilinguals and monolinguals, which suggests that between-group differences were more qualitative than quantitative. Our results suggest that bilinguals may differently develop the involvement of the executive control networks that comprise the left inferior frontal gyrus during cognitive control tasks than monolinguals.

  15. Parsing as a Process of Applying I-Language Modules: A Case Study Based on the Processing of Quantifier Float Constructions in Japanese.

    Science.gov (United States)

    Kaneko, Yasuo

    1993-01-01

    The goal of this study is to understand the ways in which humans apply relevant modules of knowledge of language to an input sentence in a parsing process. To this end, quantifier float constructions in Japanese are analyzed, as a case study, on the basis of the view that the output in parsing comprises discrete and multiple categories. Then, a…

  16. Acoustic landmarks drive delta-theta oscillations to enable speech comprehension by facilitating perceptual parsing.

    Science.gov (United States)

    Doelling, Keith B; Arnal, Luc H; Ghitza, Oded; Poeppel, David

    2014-01-15

    A growing body of research suggests that intrinsic neuronal slow (speech and other spectro-temporally complex auditory signals. Within this framework, several recent studies have identified critical-band temporal envelopes as the specific acoustic feature being reflected by the phase of these oscillations. However, how this alignment between speech acoustics and neural oscillations might underpin intelligibility is unclear. Here we test the hypothesis that the 'sharpness' of temporal fluctuations in the critical band envelope acts as a temporal cue to speech syllabic rate, driving delta-theta rhythms to track the stimulus and facilitate intelligibility. We interpret our findings as evidence that sharp events in the stimulus cause cortical rhythms to re-align and parse the stimulus into syllable-sized chunks for further decoding. Using magnetoencephalographic recordings, we show that by removing temporal fluctuations that occur at the syllabic rate, envelope-tracking activity is reduced. By artificially reinstating these temporal fluctuations, envelope-tracking activity is regained. These changes in tracking correlate with intelligibility of the stimulus. Together, the results suggest that the sharpness of fluctuations in the stimulus, as reflected in the cochlear output, drive oscillatory activity to track and entrain to the stimulus, at its syllabic rate. This process likely facilitates parsing of the stimulus into meaningful chunks appropriate for subsequent decoding, enhancing perception and intelligibility. Copyright © 2013 Elsevier Inc. All rights reserved.

  17. Process of 3D wireless decentralized sensor deployment using parsing crossover scheme

    Directory of Open Access Journals (Sweden)

    Albert H.R. Ko

    2015-07-01

    Full Text Available A Wireless Sensor Networks (WSN usually consists of numerous wireless devices deployed in a region of interest, each able to collect and process environmental information and communicate with neighboring devices. It can thus be regarded as a Multi-Agent System for territorial security, where individual agents cooperate with each other to avoid duplication of effort and to exploit other agent’s capacities. The problem of sensor deployment becomes non-trivial when we consider environmental factors, such as terrain elevations. Due to the fact that all sensors are homogeneous, the chromosomes that encode sensor positions are actually interchangeable, and conventional crossover schemes such as uniform crossover would cause some redundancy as well as over-concentration in certain specific geographical area. We propose a Parsing Crossover Scheme that intends to reduce redundancy and ease geographical concentration pattern in an effort to facilitate the search. The proposed parsing crossover method demonstrates better performances than those of uniform crossover under different terrain irregularities.

  18. FastaValidator: an open-source Java library to parse and validate FASTA formatted sequences.

    Science.gov (United States)

    Waldmann, Jost; Gerken, Jan; Hankeln, Wolfgang; Schweer, Timmy; Glöckner, Frank Oliver

    2014-06-14

    Advances in sequencing technologies challenge the efficient importing and validation of FASTA formatted sequence data which is still a prerequisite for most bioinformatic tools and pipelines. Comparative analysis of commonly used Bio*-frameworks (BioPerl, BioJava and Biopython) shows that their scalability and accuracy is hampered. FastaValidator represents a platform-independent, standardized, light-weight software library written in the Java programming language. It targets computer scientists and bioinformaticians writing software which needs to parse quickly and accurately large amounts of sequence data. For end-users FastaValidator includes an interactive out-of-the-box validation of FASTA formatted files, as well as a non-interactive mode designed for high-throughput validation in software pipelines. The accuracy and performance of the FastaValidator library qualifies it for large data sets such as those commonly produced by massive parallel (NGS) technologies. It offers scientists a fast, accurate and standardized method for parsing and validating FASTA formatted sequence data.

  19. TOGA: an automated parsing technology for analyzing expression of nearly all genes.

    Science.gov (United States)

    Sutcliffe, J G; Foye, P E; Erlander, M G; Hilbush, B S; Bodzin, L J; Durham, J T; Hasel, K W

    2000-02-29

    We have developed an automated, high-throughput, systematic cDNA display method called TOGA, an acronym for total gene expression analysis. TOGA utilizes 8-nt sequences, comprised of a 4-nt restriction endonuclease cleavage site and adjacent 4-nt parsing sequences, and their distances from the 3' ends of mRNA molecules to give each mRNA species in an organism a single identity. The parsing sequences are used as parts of primer-binding sites in 256 PCR-based assays performed robotically on tissue extracts to determine simultaneously the presence and relative concentration of nearly every mRNA in the extracts, regardless of whether the mRNA has been discovered previously. Visualization of the electrophoretically separated fluorescent assay products from different extracts displayed via a Netscape browser-based graphical user interface allows the status of each mRNA to be compared among samples and its identity to be matched with sequences of known mRNAs compiled in databases.

  20. Scene Parsing with Multiscale Feature Learning, Purity Trees, and Optimal Covers

    CERN Document Server

    Farabet, Clément; Najman, Laurent; LeCun, Yann

    2012-01-01

    Scene parsing, or semantic segmentation, consists in labeling each pixel in an image with the category of the object it belongs to. It is a challenging task that involves the simultaneous detection, segmentation and recognition of all the objects in the image. The scene parsing method proposed here starts by computing a tree of segments from a graph of pixel dissimilarities. Simultaneously, a set of dense feature vectors is computed which encodes regions of multiple sizes centered on each pixel. The feature extractor is a multiscale convolutional network trained from raw pixels. The feature vectors associated with the segments covered by each node in the tree are aggregated and fed to a classifier which produces an estimate of the distribution of object categories contained in the segment. A subset of tree nodes that cover the image are then selected so as to maximize the average "purity" of the class distributions, hence maximizing the overall likelihood that each segment will contain a single object. The co...

  1. Attribute And-Or Grammar for Joint Parsing of Human Pose, Parts and Attributes.

    Science.gov (United States)

    Park, Seyoung; Nie, Xiaohan; Zhu, Song-Chun

    2017-07-25

    This paper presents an attribute and-or grammar (A-AOG) model for jointly inferring human body pose and human attributes in a parse graph with attributes augmented to nodes in the hierarchical representation. In contrast to other popular methods in the current literature that train separate classifiers for poses and individual attributes, our method explicitly represents the decomposition and articulation of body parts, and account for the correlations between poses and attributes. The A-AOG model is an amalgamation of three traditional grammar formulations: (i)Phrase structure grammar representing the hierarchical decomposition of the human body from whole to parts; (ii)Dependency grammar modeling the geometric articulation by a kinematic graph of the body pose; and (iii)Attribute grammar accounting for the compatibility relations between different parts in the hierarchy so that their appearances follow a consistent style. The parse graph outputs human detection, pose estimation, and attribute prediction simultaneously, which are intuitive and interpretable. We conduct experiments on two tasks on two datasets, and experimental results demonstrate the advantage of joint modeling in comparison with computing poses and attributes independently. Furthermore, our model obtains better performance over existing methods for both pose estimation and attribute prediction tasks.

  2. DTI reveals structural differences in white matter tracts between bilingual and monolingual children.

    Science.gov (United States)

    Mohades, Seyede Ghazal; Struys, Esli; Van Schuerbeek, Peter; Mondt, Katrien; Van De Craen, Piet; Luypaert, Robert

    2012-01-30

    The impact of bilingualism on the microstructure of the white matter pathways related to language processing is assessed in elementary school children by magnetic resonance diffusion tensor imaging (MR-DTI). Forty children, 8-11 years old, subdivided into 3 different groups (15 simultaneous bilinguals, 15 sequential bilinguals and 10 monolinguals), were scanned. The hypothesis was that the starting age and the manner of second language acquisition would affect the characteristics of language circuitry. In each subject the mean fractional anisotropy (FA) was obtained for four major white matter pathways: 1 - the left arcuate fasciculus/superior longitudinal fasciculus (lAF/lSLF) that connects Broca's area in the opercular and triangular regions of the left inferior frontal gyrus to the posterior language zone, 2 - the left inferior occipitofrontal fasciculus (lIFOF), connecting anterior regions in the frontal lobe with posterior regions in the temporal occipital lobes, 3 - the bundle arising from the anterior part of the corpus callosum projecting to the orbital lobe (AC-OL) and 4 - the fibers emerging from the anterior midbody (AMB) of the corpus callosum that associate with the premotor and supplementary motor cortices (AMB-PMC). The three groups did not show significant differences in mean FA over the lAF/lSLF or AMB-PMC tracts. In simultaneous bilingual subjects the lIFOF tracts had higher mean FA value compared to monolinguals and also sequential bilinguals, whereas the comparison for the AC-OL fibers yielded a significantly lower mean FA value in simultaneous bilingual subjects compared to monolinguals. In both cases the FA value for sequential bilinguals was intermediate to that of the other two groups. To our knowledge, this study provides the first evidence of bilingualism related adaptation of white matter microstructure in the human brain.

  3. White-matter development is different in bilingual and monolingual children: a longitudinal DTI study.

    Science.gov (United States)

    Mohades, Seyede Ghazal; Van Schuerbeek, Peter; Rosseel, Yves; Van De Craen, Piet; Luypaert, Robert; Baeken, Chris

    2015-01-01

    Although numerous people grow up speaking more than one language, the impact of bilingualism on brain developing neuroanatomy is still poorly understood. This study aimed to determine whether the changes in the mean fractional-anisotropy (MFA) of language pathways are different between bilingual and monolingual children. Simultaneous-bilinguals, sequential-bilinguals and monolingual, male and female 10-13 years old children participated in this longitudinal study over a period of two years. We used diffusion tensor tractography to obtain mean fractional-anisotropy values of four language related pathways and one control bundle: 1-left-inferior-occipitofrontal fasciculus/lIFOF, 2-left-arcuate fasciculus/lAF/lSLF, 3-bundle arising from the anterior part of corpus-callosum and projecting to orbital lobe/AC-OL, 4-fibres emerging from anterior-midbody of corpus-callosum (CC) to motor cortices/AMB-PMC, 5- right-inferior-occipitofrontal fasciculus rIFOF as the control pathway unrelated to language. These values and their rate of change were compared between 3 groups. FA-values did not change significantly over two years for lAF/lSLF and AC-OL. Sequential-bilinguals had the highest degree of change in the MFA value of lIFOF, and AMB-PMC did not present significant group differences. The comparison of MFA of lIFOF yielded a significantly higher FA-value in simultaneous bilinguals compared to monolinguals. These findings acknowledge the existing difference of the development of the semantic processing specific pathway between children with different semantic processing procedure. These also support the hypothesis that age of second language acquisition affects the maturation and myelination of some language specific white-matter pathways.

  4. White-matter development is different in bilingual and monolingual children: a longitudinal DTI study.

    Directory of Open Access Journals (Sweden)

    Seyede Ghazal Mohades

    Full Text Available Although numerous people grow up speaking more than one language, the impact of bilingualism on brain developing neuroanatomy is still poorly understood. This study aimed to determine whether the changes in the mean fractional-anisotropy (MFA of language pathways are different between bilingual and monolingual children. Simultaneous-bilinguals, sequential-bilinguals and monolingual, male and female 10-13 years old children participated in this longitudinal study over a period of two years. We used diffusion tensor tractography to obtain mean fractional-anisotropy values of four language related pathways and one control bundle: 1-left-inferior-occipitofrontal fasciculus/lIFOF, 2-left-arcuate fasciculus/lAF/lSLF, 3-bundle arising from the anterior part of corpus-callosum and projecting to orbital lobe/AC-OL, 4-fibres emerging from anterior-midbody of corpus-callosum (CC to motor cortices/AMB-PMC, 5- right-inferior-occipitofrontal fasciculus rIFOF as the control pathway unrelated to language. These values and their rate of change were compared between 3 groups. FA-values did not change significantly over two years for lAF/lSLF and AC-OL. Sequential-bilinguals had the highest degree of change in the MFA value of lIFOF, and AMB-PMC did not present significant group differences. The comparison of MFA of lIFOF yielded a significantly higher FA-value in simultaneous bilinguals compared to monolinguals. These findings acknowledge the existing difference of the development of the semantic processing specific pathway between children with different semantic processing procedure. These also support the hypothesis that age of second language acquisition affects the maturation and myelination of some language specific white-matter pathways.

  5. A Cultural Perspective on Sexual Health: HIV Positive and Negative Monolingual Hispanic Women in South Florida.

    Science.gov (United States)

    Villar-Loubet, Olga M; Vamos, Szonja; Jones, Deborah L; Lopez, Eliot; Weiss, Stephen M

    2011-06-01

    This study explored feelings and attitudes with regard to HIV and sexual health among 82 monolingual Spanish-speaking, HIV-positive (n = 30) and at-risk women (n = 52), participating in the NOW en Español Project-a cognitive behavioral sexual risk-reduction intervention in Miami, Florida. Hispanic cultural values and beliefs, such as machismo, marianismo, and sexual silence, emerged throughout the intervention as important determinants of sexual behavior. Recommendations for integrating these culture-specific issues in sexual health interventions for Hispanic women are provided.

  6. Designing for Diversity: The Role of Reading Strategies and Interactive Vocabulary in a Digital Reading Environment for Fifth-Grade Monolingual English and Bilingual Students

    Science.gov (United States)

    Dalton, Bridget; Proctor, C. Patrick; Uccelli, Paola; Mo, Elaine; Snow, Catherine E.

    2011-01-01

    This study examined the relative contribution of reading comprehension strategies and interactive vocabulary in Improving Comprehension Online (ICON), a universally designed web-based scaffolded text environment designed to improve fifth-grade monolingual English and bilingual students' reading achievement. Seventy-five monolingual English and 31…

  7. Exploring Non-Native English-Speaking Teachers' Beliefs about the Monolingual Approach: Differences between Pre-Service and In-Service Korean Teachers of English

    Science.gov (United States)

    Lee, Jang Ho

    2016-01-01

    The non-native English-speaking teachers' (NNESTs) beliefs about the monolingual approach have not been sufficiently studied in the teaching of English as a foreign language (EFL). In examining the NNESTs' beliefs about that issue, the present study adapts Guy Cook's recent framework, according to which the monolingual approach is based upon four…

  8. The Persistence and Functional Impact of English Language Difficulties Experienced by Children Learning English as an Additional Language and Monolingual Peers.

    Science.gov (United States)

    Whiteside, Katie E; Norbury, Courtenay Frazier

    2017-07-12

    This study explored whether a monolingual-normed English language battery could identify children with English as an additional language (EAL) who have persistent English language learning difficulties that affect functional academic attainment. Children with EAL (n = 43) and monolingual English-speaking children (n = 46) completed a comprehensive monolingual-normed English language battery in Year 1 (ages 5-6 years) and Year 3 (ages 7-8 years). Children with EAL and monolingual peers, who either met monolingual criteria for language impairment or typical development on the language battery in Year 1, were compared on language growth between Year 1 and Year 3 and on attainment in national curriculum assessments in Year 2 (ages 6-7 years). Children with EAL and monolingual peers who met monolingual criteria for language impairment in Year 1 continued to display comparably impaired overall language ability 2 years later in Year 3. Moreover, these groups displayed comparably low levels of academic attainment in Year 2, demonstrating comparable functional impact of their language difficulties. Monolingual-normed language batteries in the majority language may have some practical value for identifying bilingual children who need support with language learning, regardless of the origin of their language difficulties.

  9. Do Young Bilinguals Acquire Past Tense Morphology like Monolinguals, Only Later? Evidence from French-English and Chinese-English Bilinguals

    Science.gov (United States)

    Nicoladis, Elena; Song, Jianhui; Marentette, Paula

    2012-01-01

    Previous studies have shown that preschool bilingual children lag behind same-aged monolinguals in their production of correct past tense forms. This lag has been attributed to bilinguals' less frequent exposure to either language. If so, bilingual children acquire the past tense like monolinguals, only later. In this study, we compared the…

  10. Cuidado de enfermagem a pessoas com hipertensão fundamentado na teoria de Parse Atención de enfermería a personas con hipertensión basada en la teoría de Parse Nursing care to people with hypertension based on Parse's theory

    Directory of Open Access Journals (Sweden)

    Fabíola Vládia Freire da Silva

    2013-03-01

    Full Text Available Este estudo propõe o cuidado de enfermagem, baseado nos princípios de Parse, a pessoas com hipertensão consultadas na Estratégia Saúde da Família. Estudo descritivo, de cunho qualitativo, realizado de março a maio de 2011, com quatorze enfermeiros no município de Itapajé-Ceará. Para coleta das informações utilizou-se a entrevista semiestruturada e, para análise, o discurso dos sujeitos. Emergiram três categorias baseadas nos princípios de Parse: Multidimensão dos significados - o enfermeiro conduz ao relato dos significados; Sincronização de ritmos - o enfermeiro ajuda a identificar harmonia e desarmonia; Mobilização da transcendência - o enfermeiro guia o plano de mudanças. Notou-se aproximação dos discursos ao teorizado por Parse quando citaram buscar um cuidado humanizado, com a participação da família, valorização da autonomia, utilização da educação em saúde, com orientações individuais. Percebeu-se a viabilidade na implementação do cuidado de enfermagem fundamentado na Teoria de Parse a pessoas com hipertensão.Este estudio propone la atención de enfermería, basada en los principios de Parse, para personas con hipertensión en la Estrategia de Salud Familiar. Estudio descriptivo, cualitativo, realizado de marzo a mayo/2011, con catorce enfermeros en Itapajé, Ceará. Para la recolección de las informaciones, se utilizó la entrevista semiestructurada y para análisis, el discurso de los sujetos. Emergieron tres categorías: Multidimensiones de los significados - el enfermero conduce al relato de los significados; Sincronización de los ritmos - el enfermero ayuda a identificar armonía y desarmonía; Movilización de la trascendencia - el enfermero guía el plan de cambios. Se observó semejanzas entre el enfoque de los discursos y la Teoría de Parse, cuando citaron la búsqueda de atención humanizada, con participación de la familia, valoración de la autonomía, uso de la educación en salud

  11. Barriers and successful strategies to antiretroviral adherence among HIV-infected monolingual Spanish-speaking patients.

    Science.gov (United States)

    Murphy, D A; Roberts, K Johnston; Hoffman, D; Molina, A; Lu, M C

    2003-04-01

    Focus groups were conducted with HIV-infected, monolingual Spanish-speaking patients (N = 81) taking antiretrovirals in order to: (1) determine what barriers impede medication adherence; (2) determine what strategies facilitate adherence; and (3) investigate the health care provider-patient relationship and whether it impacts adherence. Both quantitative and qualitative information was gathered. Participants were prescribed an average of 11 pills per day (M = 11.4, SD = 7.0, range = 1-30). Only 32% of participants were consistently adherent when self-report of medication taking (yesterday, the day before yesterday, and last Saturday) was compared to prescribed regimen. The most frequently reported strategies were: learning more about the medications (77%), accepting the need to take them (75%) and refilling prescriptions early or on time (70%). Barriers most often reported were: feeling depressed or overwhelmed (21%), simply forgetting (19%) and sleeping through a dose (17%). From the qualitative data, four main issues emerged: patient characteristics, the health care professional-patient relationship, language and cultural barriers within the health care system, and the medication regimen. Among this Latino sample, having someone to live for was extremely important in terms of patient adherence. Language barriers were reported, and the use of translators was not always seen as a sufficient remedy. Differences between monolingual Spanish-speaking patients' and English-speaking patients' strategies and barriers are discussed.

  12. Proficiency and Control in Verbal Fluency Performance across the Lifespan for Monolinguals and Bilinguals

    Science.gov (United States)

    Friesen, Deanna C.; Luo, Lin; Luk, Gigi; Bialystok, Ellen

    2014-01-01

    The verbal fluency task is a widely used neuropsychological test of word retrieval efficiency. Both category fluency (e.g., list animals) and letter fluency (e.g., list words that begin with F) place demands on semantic memory and executive control functions. However letter fluency places greater demands on executive control than category fluency, making this task well-suited to investigating potential bilingual advantages in word retrieval. Here we report analyses on category and letter fluency for bilinguals and monolinguals at four ages, namely, 7-year-olds, 10-year-olds, young adults, and older adults. Three main findings emerged: 1) verbal fluency performance improved from childhood to young adulthood and remained relatively stable in late adulthood; 2) beginning at 10-years-old, the executive control requirements for letter fluency were less effortful for bilinguals than monolinguals, with a robust bilingual advantage on this task emerging in adulthood; 3) an interaction among factors showed that category fluency performance was influenced by both age and vocabulary knowledge but letter fluency performance was influenced by bilingual status. PMID:25642427

  13. Native-language recognition abilities in 4-month-old infants from monolingual and bilingual environments.

    Science.gov (United States)

    Bosch, L; Sebastián-Gallés, N

    1997-12-01

    This study examined the capacity of 4-month-old infants to identify their maternal language when phonologically similar languages are contrasted, using a visual orientation procedure with a reaction time measure. Infants from monolingual and bilingual environments were compared in order to analyze whether differences in linguistic background affect this behavioral response. In experiment 1 the validity of the procedure was assessed with a pair of phonologically dissimilar languages (Catalan or Spanish vs. English). In experiment 2, 20 infants from monolingual environments tested in a similar language contrast (Catalan vs. Spanish) indicated that discrimination is already possible at that age. Results from experiment 3, using low-pass filtered utterances, suggested that infants can rely on information about supra-segmental features to make this distinction. For the infants growing up in bilingual environments no preference for either of the familiar languages was found. Moreover, when their maternal language was contrasted either with English or with Italian, in both cases the bilingual group showed a similar pattern, consisting of significantly longer latencies for the familiar language. Possible interpretations of this unexpected pattern of results are discussed and its implications for bilingual language acquisition are considered.

  14. Using monolingual neuropsychological test norms with bilingual Hispanic americans: application of an individual comparison standard.

    Science.gov (United States)

    Gasquoine, Philip Gerard; Gonzalez, Cassandra Dayanira

    2012-05-01

    Conventional neuropsychological norms developed for monolinguals likely overestimate normal performance in bilinguals on language but not visual-perceptual format tests. This was studied by comparing neuropsychological false-positive rates using the 50th percentile of conventional norms and individual comparison standards (Picture Vocabulary or Matrix Reasoning scores) as estimates of preexisting neuropsychological skill level against the number expected from the normal distribution for a consecutive sample of 56 neurologically intact, bilingual, Hispanic Americans. Participants were tested in separate sessions in Spanish and English in the counterbalanced order on La Bateria Neuropsicologica and the original English language tests on which this battery was based. For language format measures, repeated-measures multivariate analysis of variance showed that individual estimates of preexisting skill level in English generated the mean number of false positives most approximate to that expected from the normal distribution, whereas the 50th percentile of conventional English language norms did the same for visual-perceptual format measures. When using conventional Spanish or English monolingual norms for language format neuropsychological measures with bilingual Hispanic Americans, individual estimates of preexisting skill level are recommended over the 50th percentile.

  15. Discrimination of foreign language speech contrasts by English monolinguals and French/English bilinguals.

    Science.gov (United States)

    McKelvie-Sebileau, Pippa; Davis, Chris

    2014-05-01

    The primary aim of this study was to determine whether late French/English bilinguals are able to utilize knowledge of bilabial stop contrasts that exist in each of their separate languages to discriminate bilabial stop contrasts from a new language (Thai). Secondary aims were to determine associations between bilabial stop consonant production in the L1 and the L2, between language learning factors and production and discrimination, and to compare English bilinguals' and monolinguals' discrimination. Three Thai bilabial stop consonant pairs differentiated by Voice Onset Time (VOT) (combinations of [b], [p], and [p(h)]) were presented to 28 French-English bilinguals, 25 English-French bilinguals, and 43 English monolinguals in an AX discrimination task. It was hypothesized that L2 experience would facilitate discrimination of contrasts that were phonemic in the L2 but not in the L1 for bilinguals. Only limited support for this hypothesis was found. However, results indicate that high production proficiency bilinguals had higher discrimination of the phonemic L2 contrasts (non-phonemic in L1). Discrimination patterns indicate lasting L1 influence, with similarity between unknown foreign language contrasts and L1 contrasts influencing discrimination rates. Production results show evidence for L2 influence in the L1. Results are discussed in the context of current speech perception models.

  16. Parsing recursive sentences with a connectionist model including a neural stack and synaptic gating.

    Science.gov (United States)

    Fedor, Anna; Ittzés, Péter; Szathmáry, Eörs

    2011-02-21

    It is supposed that humans are genetically predisposed to be able to recognize sequences of context-free grammars with centre-embedded recursion while other primates are restricted to the recognition of finite state grammars with tail-recursion. Our aim was to construct a minimalist neural network that is able to parse artificial sentences of both grammars in an efficient way without using the biologically unrealistic backpropagation algorithm. The core of this network is a neural stack-like memory where the push and pop operations are regulated by synaptic gating on the connections between the layers of the stack. The network correctly categorizes novel sentences of both grammars after training. We suggest that the introduction of the neural stack memory will turn out to be substantial for any biological 'hierarchical processor' and the minimalist design of the model suggests a quest for similar, realistic neural architectures.

  17. Análisis de los posibles desde la teoría de Parse en una persona con Alzheimer The analysis of the possibles through Parse's theory on a person with Alzheimer

    Directory of Open Access Journals (Sweden)

    Virtudes Rodero-Sánchez

    2006-11-01

    Full Text Available Cuando una persona acude al sistema sanitario con un problema de salud, con mucha frecuencia se le va a pedir que introduzca cambios en sus hábitos y estilo de vida. Esta demanda se suele concretar en un pacto-compromiso que se establece persona-profesional. Hemos observado que este pacto, a pesar de que el profesional se esfuerza en enmarcarlo en objetivos realistas, con demasiada frecuencia sobreviene la frustración, sobre todo en escenarios de cronicidad. La teoría de Parse nos ofrece una manera diferente de abordar el cambio. En la teoría de Parse, El Ser Humano en Devenir, los posibles son la expresión de la fuerza, entendida como una manera única de transformación, que consiste en avanzar con las esperanzas, anhelos y los proyectos de la persona. Planteamos: en primer lugar un análisis de los elementos de lo que Parse llama su tercer principio, la co-trancendencia con los posibles; en segundo lugar el análisis de los posibles desde este marco de referencia a través de una narrativa; y por último la práctica enfermera.When a person comes to the Health Care System with a health problem will often be asked to change some of his habits and lifestyles. This demand becomes a compromise-pact between the person and the professional. We have observed that in this compromise-pact, despite the effort of the professional to hide it behind realist targets, the patient usually becomes frustrated, especially in cases of chronic illnesses. Parse's theory offers us a different way to approach the change. In Parse's theory, The Human Becoming, the possibles are the expression of power, understood as a unique way of transformation, consisting in advancing with the hopes, desires and projects of a person. We suggest, first of all, an analysis of the elements that Parse calls her third principle: co-transcendence with the possibles; secondly, the analysis of the possibles from the basis of this reference framework through a narration and, finally

  18. Production and On-Line Comprehension of Definiteness in English and Dutch by Monolingual and Sequential Bilingual Children

    Science.gov (United States)

    Chondrogianni, Vasiliki; Vasic, Nada; Marinis, Theodoros; Blom, Elma

    2015-01-01

    The present article examines production and on-line processing of definite articles in Turkish-speaking sequential bilingual children acquiring English and Dutch as second languages (L2) in the UK and in the Netherlands, respectively. Thirty-nine 6-8-year-old L2 children and 48 monolingual (L1) age-matched children participated in two separate…

  19. Linguistic knowledge, fluency and metacognitive knowledge as components of reading comprehension in adolescent low achievers: differences between monolinguals and bilinguals

    NARCIS (Netherlands)

    Trapman, M.J.W.; Van Gelderen, Amos; Van Steensel, Roel; Van Schooten, Erik; Hulstijn, Jan

    2014-01-01

    In this study we investigate the role of linguistic knowledge, fluency and meta-cognitive knowledge in Dutch reading comprehension of monolingual and bilingual adolescent academic low achievers in the Netherlands. Results show that these components are substantially associated with reading comprehen

  20. Subject-Verb Agreement in Specific Language Impairment: A Study of Monolingual and Bilingual German-Speaking Children

    Science.gov (United States)

    Rothweiler, Monika; Chilla, Solveig; Clahsen, Harald

    2012-01-01

    This study investigates phenomena that have been claimed to be indicative of Specific Language Impairment (SLI) in German, focusing on subject-verb agreement marking. Longitudinal data from fourteen German-speaking children with SLI, seven monolingual and seven Turkish-German successive bilingual children, were examined. We found similar patterns…

  1. Surmounting the Tower of Babel: Monolingual and bilingual 2-year-olds' understanding of the nature of foreign language words.

    Science.gov (United States)

    Byers-Heinlein, Krista; Chen, Ke Heng; Xu, Fei

    2014-03-01

    Languages function as independent and distinct conventional systems, and so each language uses different words to label the same objects. This study investigated whether 2-year-old children recognize that speakers of their native language and speakers of a foreign language do not share the same knowledge. Two groups of children unfamiliar with Mandarin were tested: monolingual English-learning children (n=24) and bilingual children learning English and another language (n=24). An English speaker taught children the novel label fep. On English mutual exclusivity trials, the speaker asked for the referent of a novel label (wug) in the presence of the fep and a novel object. Both monolingual and bilingual children disambiguated the reference of the novel word using a mutual exclusivity strategy, choosing the novel object rather than the fep. On similar trials with a Mandarin speaker, children were asked to find the referent of a novel Mandarin label kuò. Monolinguals again chose the novel object rather than the object with the English label fep, even though the Mandarin speaker had no access to conventional English words. Bilinguals did not respond systematically to the Mandarin speaker, suggesting that they had enhanced understanding of the Mandarin speaker's ignorance of English words. The results indicate that monolingual children initially expect words to be conventionally shared across all speakers-native and foreign. Early bilingual experience facilitates children's discovery of the nature of foreign language words.

  2. The Acquisition of Speech Rhythm by Three-Year-Old Bilingual and Monolingual Children: Cantonese and English

    Science.gov (United States)

    Mok, Peggy P. K.

    2011-01-01

    This study investigates the acquisition of speech rhythm by Cantonese-English bilingual children and their age-matched monolingual peers. Languages can be classified in terms of rhythmic characteristics that define English as stress-timed and Cantonese as syllable-timed. Few studies have examined the concurrent acquisition of rhythmically…

  3. Syntactic, Semantic and Pragmatic Correlates of the Acquisition of Exhaustivity in "Wh"-Questions: A Study of Polish Monolingual Children

    Science.gov (United States)

    Forys-Nogala, Malgorzata; Haman, Ewa; Katsos, Napoleon; Krajewski, Grzegorz; Schulz, Petra

    2017-01-01

    This study investigates relationships between acquisition of exhaustivity in single and multiple "wh"-questions, mastery of semantic and pragmatic aspects of quantifier comprehension, and general skills in receptive grammar. The participants of the study were 25 Polish monolingual typically developing children aged 4;02-6;02, who were…

  4. The Production of Referring Expressions in Oral Narratives of Chinese-English Bilingual Speakers and Monolingual Peers

    Science.gov (United States)

    Chen, Liang; Lei, Jianghua

    2013-01-01

    This study evaluates the extent to which the production of referring expressions such as noun phrases and pronouns to fulfill various discourse functions in narratives of Chinese-English bilingual children matches that of their monolingual peers in each of the two languages. Spoken narratives in English and Chinese were elicited from 30 9-year-old…

  5. The use of subject-verb agreement and verb argument structure in monolingual and bilingual children with specific language impairment

    NARCIS (Netherlands)

    Spoelman, Marianne; Bol, Gerard W.

    2012-01-01

    This study investigates the use of subject-verb agreement and verb argument structure in the spoken Dutch of monolingual Dutch children with specific language impairment (SLI) and bilingual Frisian-Dutch children with SLI. Both SLI groups appeared to be less efficient in their use of subject-verb ag

  6. Monolingual and Bilingual Recognition of Regular and Irregular English Verbs: Sensitivity to Form Similarity Varies with First Language Experience

    Science.gov (United States)

    Basnight-Brown, Dana M.; Chen, Lang; Hua, Shu; Kostic, Aleksandar; Feldman, Laurie Beth

    2007-01-01

    We used a cross-modal priming procedure to explore the processing of irregular and regular English verb forms in both monolinguals and bilinguals (Serbian-English, Chinese-English). Materials included irregular nested stem (drawn-DRAW), irregular change stem (ran-RUN), and regular past tense-present tense verb pairs that were either low…

  7. Immigrant Parents' Choice of a Bilingual versus Monolingual Kindergarten for Second-Generation Children: Motives, Attitudes, and Factors

    Science.gov (United States)

    Schwartz, Mila; Moin, Victor; Leikin, Mark; Breitkopf, Anna

    2010-01-01

    This study investigated how immigrant parents describe and explain their family language policy concerning their child's preschool bilingual development, and also explored the factors linked to the parents' choice of bilingual or monolingual kindergarten for their child. The study design was based on a comparison of 2 groups of parents: those who…

  8. Creating the DISEQuA corpus: a multilingual test set for the monolingual question Answering tasks at CLEF 2003

    NARCIS (Netherlands)

    Magnini, B.; Romagnoli, S.; Vallin, A.; Herrera, J.; Peñas, A.; Peinado, V.; Verdejo, F.; de Rijke, M.

    2003-01-01

    This paper describes the procedure adopted by the three co-ordinators of the CLEF 2003 question answering track (ITC-irst, UNED and ILLC) to create the question set for the monolingual tasks. Despite thelittle resources available, the three groups collaborated and managed to formulate and verify a l

  9. Metacognitions about Language Skill and Working Memory among Monolingual and Bilingual College Students: When Does Multilingualism Matter?

    Science.gov (United States)

    Ransdell, Sarah; Barbier, Marie-Laure; Niit, Toomas

    2006-01-01

    Previous research has shown that individual differences in working memory (WM) are highly predictive of a wide range of cognitive behaviours. Until recently, research has focused on monolingual, or undifferentiated, populations. The present research compares metacognitive awareness, as measured by self-ratings of reading, writing, speaking and…

  10. Comparison of Spanish Morphology in Monolingual and Spanish-English Bilingual Children with and without Language Impairment

    Science.gov (United States)

    Morgan, Gareth P.; Restrepo, M. Adelaida; Auza, Alejandra

    2013-01-01

    This study compares Spanish morphosyntax error types and magnitude in monolingual Spanish and Spanish-English bilingual children with typical language development (TD) and language impairment (LI). Performance across groups was compared using cloze tasks that targeted articles, clitics, subjunctives, and derivational morphemes in 57 children.…

  11. Increase in Speech Recognition Due to Linguistic Mismatch between Target and Masker Speech: Monolingual and Simultaneous Bilingual Performance

    Science.gov (United States)

    Calandruccio, Lauren; Zhou, Haibo

    2014-01-01

    Purpose: To examine whether improved speech recognition during linguistically mismatched target-masker experiments is due to linguistic unfamiliarity of the masker speech or linguistic dissimilarity between the target and masker speech. Method: Monolingual English speakers (n = 20) and English-Greek simultaneous bilinguals (n = 20) listened to…

  12. Intercultural Interactions of Mono-Cultural, Mono-Lingual Local Students in Small Group Learning Activities: A Bourdieusian Analysis

    Science.gov (United States)

    Colvin, Cassandra; Fozdar, Farida; Volet, Simone

    2015-01-01

    This research examines the understandings and experiences of mono-cultural, mono-lingual local students in relation to intercultural interactions within small group learning activities at university. Bourdieu's concepts of field, habitus and capital are employed to illuminate a number of barriers to intercultural interaction. Using qualitative…

  13. Language Growth in English Monolingual and Spanish-English Bilingual Children from 2.5 to 5 Years.

    Science.gov (United States)

    Hoff, Erika; Ribot, Krystal M

    2017-08-10

    To describe the trajectories of English and Spanish language growth in typically developing children from bilingual homes and compare those with the trajectories of English growth in children from monolingual homes, to assess effects of dual language exposure on language growth in typically developing children. Expressive vocabularies were assessed at 6-month intervals from age 30 to 60 months, in English for monolinguals and English and Spanish for bilinguals. Use of English and Spanish in the home was assessed via parental report. Multilevel modeling, including parent education as a covariate, revealed that children from bilingual homes lagged 6 months to 1 year behind monolingual children in English vocabulary growth. The size of the lag was related to the relative amount of English use in the home, but the relation was not linear. Increments in English use conferred the greatest benefit most among homes with already high levels of English use. These homes also were likely to have 1 parent who was a native English speaker. Bilingual children showed stronger growth in English than in Spanish. Bilingual children can lag 6 months to 1 year behind monolingual children in normal English language development. Such lags may not necessarily signify clinically relevant delay if parents report that children also have skills in the home language. Shorter lags are associated with 2 correlated factors: more English exposure and more exposure from native English speakers. Early exposure to Spanish in the home does not guarantee acquisition of Spanish. Copyright © 2017 Elsevier Inc. All rights reserved.

  14. Intercultural Interactions of Mono-Cultural, Mono-Lingual Local Students in Small Group Learning Activities: A Bourdieusian Analysis

    Science.gov (United States)

    Colvin, Cassandra; Fozdar, Farida; Volet, Simone

    2015-01-01

    This research examines the understandings and experiences of mono-cultural, mono-lingual local students in relation to intercultural interactions within small group learning activities at university. Bourdieu's concepts of field, habitus and capital are employed to illuminate a number of barriers to intercultural interaction. Using qualitative…

  15. Immigrant Parents' Choice of a Bilingual versus Monolingual Kindergarten for Second-Generation Children: Motives, Attitudes, and Factors

    Science.gov (United States)

    Schwartz, Mila; Moin, Victor; Leikin, Mark; Breitkopf, Anna

    2010-01-01

    This study investigated how immigrant parents describe and explain their family language policy concerning their child's preschool bilingual development, and also explored the factors linked to the parents' choice of bilingual or monolingual kindergarten for their child. The study design was based on a comparison of 2 groups of parents: those who…

  16. The Use of a Monolingual Dictionary for Meaning Determination by Advanced Cantonese ESL Learners in Hong Kong

    Science.gov (United States)

    Chan, Alice Y. W.

    2012-01-01

    This article reports on the results of a study which investigated advanced Cantonese English as a Second Language (ESL) learners' use of a monolingual dictionary for determining the meanings of familiar English words used in less familiar contexts. Thirty-two university English majors in Hong Kong participated in a dictionary consultation task,…

  17. Natural Science and Technology Terminology in the Sesotho sa Leboa Monolingual Dictionary

    Directory of Open Access Journals (Sweden)

    W.M. Mojapelo

    2011-10-01

    Full Text Available

    Abstract: The main purpose of this article is to make a comparative analysis of the structural and the lexical differences between coinage and transliteration, as methods for the acquisition of foreign natural sci-ence and technology lexical items, which are meant for inclusion in the Sesotho sa Leboa comprehensive monolingual dictionary, Pukuntšutlhaloši ya Sesotho sa Leboa. With the exception of the multilingual glossaries ('dictionaries' as they are called, which are compiled by the National Language Service of the Department of Arts and Culture, the Sesotho sa Leboa National Lexicography Unit does not at present have any monolin-gual dictionary specializing in specific subjects like natural science and technology. As a start, the Lexicogra-phy Unit decided to include this specialized terminology in the second edition of its comprehensive monolin-gual dictionary. The main purpose for lemmatizing the natural science and technology terminology is to give these lexical items comprehensive definitions in Sesotho sa Leboa, instead of 'a one word translation defini-tion' as is the case in the bilingual and multilingual dictionaries.

    Keywords: TRANSLITERATION, COINAGE, COINED LEXICAL ITEM, LOAN WORD, ADOPTIVE, FOREIGN WORD, LEXICOGRAPHY, SOTHOIZED WORD, INDIGENOUS WORD, NATURAL SCIENCE, TECHNOLOGY, COMPOUND WORD, AMBIGUITY

    Opsomming: Natuurwetenskaplike en tegnologiese terminologie in die Sesotho sa Leboa eentalige woordeboek. Die hoofdoel van hierdie artikel is om 'n ver-gelykende ontleding te maak van die strukturele en die leksikale verskille tussen nuutskepping en transliterasie as metodes vir die verwerwing van vreemde natuurwetenskaplike en tegnologiese leksikale items wat bedoel is vir insluiting in die Sesotho sa Leboa omvattende eentalige woorde-boek Pukuntšutlhaloši ya Sesotho sa Leboa. Met die uitsondering van die meertalige woordelyste ("woordeboeke" soos hulle genoem word wat deur die Nasionale Taaldiens van die

  18. Monolingual and bilingual children with and without primary language impairment: core vocabulary comparison.

    Science.gov (United States)

    Robillard, Manon; Mayer-Crittenden, Chantal; Minor-Corriveau, Michèle; Bélanger, Roxanne

    2014-09-01

    Core vocabulary is an important component of augmentative and alternative communication (AAC) systems for school-aged children who have complex communication needs. One method of identifying core vocabulary for these individuals is to study the vocabulary of speaking children. To date, the use of core vocabulary by speaking bilingual children has not been well documented. The present study compared the core vocabulary used by children who are monolingual (French), and bilingual (French-English; English-French). We also gathered and compared language samples from French-speaking children identified as having primary language impairment (PLI), with the goal of better understanding the language differences demonstrated by children with this disability. Language samples were collected from a total of 57 children within a school setting, in a region where French is a minority language. Contrary to the hypothesis, the analysis of language transcripts revealed that there were no important differences between the core words from the groups studied.

  19. Bilingualism and linguistic politics in Brazil: From monolingual unreality to plurilingual reality

    Directory of Open Access Journals (Sweden)

    Elena Ortiz Preuss

    2014-11-01

    Full Text Available Current article discusses the linguistic policies inBrazil and problematizes explicit or underlying notions of bilingualism in official documents. Different concepts of bilingualism over time are analyzed from a bibliographic and documental study. Further, the types of bilingualism contemplated by linguistic policies are investigated. The status of Portuguese, indigenous, foreign, sign and immigrant languages in these documents is discussed, as well as the legal attitudes related to bilingualism in communities of immigrants, indigenous, deaf and descendants of Negro slaves. An initial legal ambiguity may be noted when essentially monolingual linguistic policies are prioritized. A mild progress has occurred during the last few years, mainly, those related to the acknowledgement of indigenous communities as bi/multilingual. In fact, Brazil’s plurilingual condition and its pluricultural characteristics have not been yet acknowledged.

  20. Three studies of grammar-based surface-syntactic parsing of unrestricted English text. A summary and orientation

    CERN Document Server

    Voutilainen, A

    1994-01-01

    The dissertation addresses the design of parsing grammars for automatic surface-syntactic analysis of unconstrained English text. It consists of a summary and three articles. {\\it Morphological disambiguation} documents a grammar for morphological (or part-of-speech) disambiguation of English, done within the Constraint Grammar framework proposed by Fred Karlsson. The disambiguator seeks to discard those of the alternative morphological analyses proposed by the lexical analyser that are contextually illegitimate. The 1,100 constraints express some 23 general, essentially syntactic statements as restrictions on the linear order of morphological tags. The error rate of the morphological disambiguator is about ten times smaller than that of another state-of-the-art probabilistic disambiguator, given that both are allowed to leave some of the hardest ambiguities unresolved. This accuracy suggests the viability of the grammar-based approach to natural language parsing, thus also contributing to the more general de...

  1. KNOWLEDGE BASE COMPOUND APPROACH AGAINST PHISHING ATTACKS USING SOME PARSING TECHNIQUES

    Directory of Open Access Journals (Sweden)

    Gaurav Kumar Tak

    2013-02-01

    Full Text Available The increasing use of internet all over the world, be it in households or in corporate firms, has led to an unprecedented rise in cyber-crimes. Amongst these the major chunk consists of Internet attacks which are the most popular and common attacks are carried over the internet. Generally phishing attacks, SSL attacks and some other hacking attacks are kept into this category. Security against these attacks is the major issue of internet security in today’s scenario where internet has very deep penetration. Internet has no doubt made our lives very convenient. It has provided many facilities to us at penny’s cost. For instance it has made communication lightning fast and that too at a very cheap cost. But internet can pose added threats for those users who are not well versed in the ways of internet and unaware of the security risks attached with it. Phishing Attacks, Nigerian Scam, Spam attacks, SSL attacks and other hacking attacks are some of the most common and recent attacks to compromise the privacy of the internet users. This paper discusses a Knowledge Base Compound approach which is based on query operations and parsing techniques to counter these internet attacks using the web browser itself. In this approach we propose to analyze the web URLs before visiting the actual site, so as to provide security against web attacks mentioned above. This approach employs various parsing operations and query processing which use many techniques to detect the phishing attacks as well as other web attacks. The aforementioned approach is completely based on operation through the browser and hence only affects the speed of browsing. This approach also includes Crawling operation to detect the URL details to further enhance the precision of detection of a compromised site. Using the proposed methodology, a new browser can easily detects the phishing attacks, SSL attacks, and other hacking attacks. With the use of this browser approach, we can easily

  2. Three studies of grammar-based surface-syntactic parsing of unrestricted English text. A summary and orientation

    OpenAIRE

    Voutilainen, Atro

    1994-01-01

    The dissertation addresses the design of parsing grammars for automatic surface-syntactic analysis of unconstrained English text. It consists of a summary and three articles. {\\it Morphological disambiguation} documents a grammar for morphological (or part-of-speech) disambiguation of English, done within the Constraint Grammar framework proposed by Fred Karlsson. The disambiguator seeks to discard those of the alternative morphological analyses proposed by the lexical analyser that are conte...

  3. Parsing the Dictionary of Modern Literary Russian Language with the Method of SCD Configurations. The Lexicographic Modeling

    Directory of Open Access Journals (Sweden)

    Neculai Curteanu

    2012-05-01

    Full Text Available This paper extends the experience of parsing other five, sensibly different, Romanian, French, and German largest dictionaries, to \\textbf{\\textit{DMLRL}} (Dictionary of Modern Literary Russian Language [18], using the optimal and portable parsing method of SCD (Segmentation-Cohesion-Dependency configurations [7], [11], [15]. The purpose of the present paper is to elaborate the lexicographic modeling of \\textbf{\\textit{DMLRL}}, which necessarily precedes the sense tree parsing dictionary entries. The following \\textbf{\\textit{three}} SCD configurations are described: the \\textbf{\\textit{first one}} has to separate the lexicographic segments in a \\textbf{\\textit{DMLRL}} entry, the \\textbf{\\textit{second}} SCD-configuration concentrates on the SCD marker classes and their hypergraph hierarchy for \\textbf{\\textit{DMLRL}} primary and secondary senses, while the \\textbf{\\textit{third}} SCD configuration hands down the same modeling process to the atomic sense definitions and their examples-to-definitions. The dependency hypergraph of the third SCD configuration, interconnected to the one of the second SCD configuration, is specified completely at the atomic sense level for the first time, exceeding the SCD configuration modeling for other five dictionaries [15], [14]. Numerous examples from \\textbf{\\textit{DMLRL}} and comparison to \\textbf{\\textit{DLR-DAR}} Romanian thesaurus-dictionary support the proposed \\textbf{\\textit{DMLRL}} lexicographic modeling.

  4. How much exposure to English is necessary for a bilingual toddler to perform like a monolingual peer in language tests?

    Science.gov (United States)

    Cattani, Allegra; Abbot-Smith, Kirsten; Farag, Rafalla; Krott, Andrea; Arreckx, Frédérique; Dennis, Ian; Floccia, Caroline

    2014-11-01

    Bilingual children are under-referred due to an ostensible expectation that they lag behind their monolingual peers in their English acquisition. The recommendations of the Royal College of Speech and Language Therapists (RCSLT) state that bilingual children should be assessed in both the languages known by the children. However, despite these recommendations, a majority of speech and language professionals report that they assess bilingual children only in English as bilingual children come from a wide array of language backgrounds and standardized language measures are not available for the majority of these. Moreover, even when such measures do exist, they are not tailored for bilingual children. It was asked whether a cut-off exists in the proportion of exposure to English at which one should expect a bilingual toddler to perform as well as a monolingual on a test standardized for monolingual English-speaking children. Thirty-five bilingual 2;6-year-olds exposed to British English plus an additional language and 36 British monolingual toddlers were assessed on the auditory component of the Preschool Language Scale, British Picture Vocabulary Scale and an object-naming measure. All parents completed the Oxford Communicative Development Inventory (Oxford CDI) and an exposure questionnaire that assessed the proportion of English in the language input. Where the CDI existed in the bilingual's additional language, these data were also collected. Hierarchical regression analyses found the proportion of exposure to English to be the main predictor of the performance of bilingual toddlers. Bilingual toddlers who received 60% exposure to English or more performed like their monolingual peers on all measures. K-means cluster analyses and Levene variance tests confirmed the estimated English exposure cut-off at 60% for all language measures. Finally, for one additional language for which we had multiple participants, additional language CDI production scores were

  5. An algorithm to parse segment packing in predicted protein contact maps.

    Science.gov (United States)

    Taylor, William R

    2016-01-01

    The analysis of correlation in alignments generates a matrix of predicted contacts between positions in the structure and while these can arise for many reasons, the simplest explanation is that the pair of residues are in contact in a three-dimensional structure and are affecting each others selection pressure. To analyse these data, A dynamic programming algorithm was developed for parsing secondary structure interactions in predicted contact maps. The non-local nature of the constraints required an iterated approach (using a "frozen approximation") but with good starting definitions, a single pass was usually sufficient. The method was shown to be effective when applied to the transmembrane class of protein and error tolerant even when the signal becomes degraded. In the globular class of protein, where the extent of interactions are more limited and more complex, the algorithm still behaved well, classifying most of the important interactions correctly in both a small and a large test case. For the larger protein, this involved examples of the algorithm apportioning parts of a single large secondary structure element between two different interactions. It is expected that the method will be useful as a pre-processor to coarse-grained modelling methods to extend the range of protein tertiary structure prediction to larger proteins or to data that is currently too 'noisy' to be used by current residue-based methods.

  6. Bioinformatical parsing of folding-on-binding proteins reveals their compositional and evolutionary sequence design.

    Science.gov (United States)

    Narasumani, Mohanalakshmi; Harrison, Paul M

    2015-12-18

    Intrinsic disorder occurs when (part of) a protein remains unfolded during normal functioning. Intrinsically-disordered regions can contain segments that 'fold on binding' to another molecule. Here, we perform bioinformatical parsing of human 'folding-on-binding' (FB) proteins, into four subsets: Ordered regions, FB regions, Disordered regions that surround FB regions ('Disordered-around-FB'), and Other-Disordered regions. We examined the composition and evolutionary behaviour (across vertebrate orthologs) of these subsets. From a convergence of three separate analyses, we find that for hydrophobicity, Ordered regions segregate from the other subsets, but the Ordered and FB regions group together as highly conserved, and the Disordered-around-FB and Other-Disordered regions as less conserved (with a lesser significant difference between Ordered and FB regions). FB regions are highly-conserved with net positive charge, whereas Disordered-around-FB have net negative charge and are relatively less hydrophobic than FB regions. Indeed, these Disordered-around-FB regions are excessively hydrophilic compared to other disordered regions generally. We describe how our results point towards a possible compositionally-based steering mechanism of folding-on-binding.

  7. Parsing pyrogenic polycyclic aromatic hydrocarbons: forensic chemistry, receptor models, and source control policy.

    Science.gov (United States)

    O'Reilly, Kirk T; Pietari, Jaana; Boehm, Paul D

    2014-04-01

    A realistic understanding of contaminant sources is required to set appropriate control policy. Forensic chemical methods can be powerful tools in source characterization and identification, but they require a multiple-lines-of-evidence approach. Atmospheric receptor models, such as the US Environmental Protection Agency (USEPA)'s chemical mass balance (CMB), are increasingly being used to evaluate sources of pyrogenic polycyclic aromatic hydrocarbons (PAHs) in sediments. This paper describes the assumptions underlying receptor models and discusses challenges in complying with these assumptions in practice. Given the variability within, and the similarity among, pyrogenic PAH source types, model outputs are sensitive to specific inputs, and parsing among some source types may not be possible. Although still useful for identifying potential sources, the technical specialist applying these methods must describe both the results and their inherent uncertainties in a way that is understandable to nontechnical policy makers. The authors present an example case study concerning an investigation of a class of parking-lot sealers as a significant source of PAHs in urban sediment. Principal component analysis is used to evaluate published CMB model inputs and outputs. Targeted analyses of 2 areas where bans have been implemented are included. The results do not support the claim that parking-lot sealers are a significant source of PAHs in urban sediments. © 2013 SETAC.

  8. Emotion regulation during threat: Parsing the time course and consequences of safety signal processing.

    Science.gov (United States)

    Hefner, Kathryn R; Verona, Edelyn; Curtin, John J

    2016-08-01

    Improved understanding of fear inhibition processes can inform the etiology and treatment of anxiety disorders. Safety signals can reduce fear to threat, but precise mechanisms remain unclear. Safety signals may acquire attentional salience and affective properties (e.g., relief) independent of the threat; alternatively, safety signals may only hold affective value in the presence of simultaneous threat. To clarify such mechanisms, an experimental paradigm assessed independent processing of threat and safety cues. Participants viewed a series of red and green words from two semantic categories. Shocks were administered following red words (cue+). No shocks followed green words (cue-). Words from one category were defined as safety signals (SS); no shocks were administered on cue+ trials. Words from the other (control) category did not provide information regarding shock administration. Threat (cue+ vs. cue-) and safety (SS+ vs. SS-) were fully crossed. Startle response and ERPs were recorded. Startle response was increased during cue+ versus cue-. Safety signals reduced startle response during cue+, but had no effect on startle response during cue-. ERP analyses (PD130 and P3) suggested that participants parsed threat and safety signal information in parallel. Motivated attention was not associated with safety signals in the absence of threat. Overall, these results confirm that fear can be reduced by safety signals. Furthermore, safety signals do not appear to hold inherent hedonic salience independent of their effect during threat. Instead, safety signals appear to enable participants to engage in effective top-down emotion regulatory processes.

  9. Towards a parts-based approach to sub-cortical brain structure parsing

    Science.gov (United States)

    Gagneja, Digvijay; Xiong, Caiming; Corso, Jason J.

    2011-03-01

    The automatic localization and segmentation, or parsing, of neuroanatomical brain structures is a key step in many neuroscience tasks. However, the inherent variability in these brain structures and their appearance continues to challenge medical image processing methods. The state of the art primarily relies upon local voxelbased morphometry, Markov random field, and probabilistic atlas based approaches, which limits the ability to explicitly capture the parts-based structure inherent in the brain. We propose a method that defines a principled parts-based representation of the sub-cortical brain structures. Our method is based on the pictorial structures model and jointly models the appearance of each part as well as the layout of the parts as a whole. Inference is cast as a maximum a posteriori problem and solved in a steepest-descent manner. Experimental results on a 28-case data set demonstrate high accuracy of our method and substantiate our claim that there is significant promise in a parts-based approach to modeling medical imaging structures.

  10. Early literacy and comprehension skills in children learning English as an additional language and monolingual children with language weaknesses.

    Science.gov (United States)

    Bowyer-Crane, Claudine; Fricke, Silke; Schaefer, Blanca; Lervåg, Arne; Hulme, Charles

    2017-01-01

    Many children learning English as an additional language (EAL) show reading comprehension difficulties despite adequate decoding. However, the relationship between early language and reading comprehension in this group is not fully understood. The language and literacy skills of 80 children learning English from diverse language backgrounds and 80 monolingual English-speaking peers with language weaknesses were assessed at school entry (mean age = 4 years, 7 months) and after 2 years of schooling in the UK (mean age = 6 years, 3 months). The EAL group showed weaker language skills and stronger word reading than the monolingual group but no difference in reading comprehension. Individual differences in reading comprehension were predicted by variations in decoding and language comprehension in both groups to a similar degree.

  11. Cultural Aspects in the Shona Monolingual Dictionary Duramazwi Guru reChiShona*

    Directory of Open Access Journals (Sweden)

    Nomalanga Mpofu

    2011-10-01

    Full Text Available

    Abstract: In the compilation of dictionaries, lexicographers also take cognisance of the culture which is inherent in a language. This article will look at the way the cultural aspect is interwoven in the practice of dictionary making. Language is at the core of culture and it is the major vehicle for the transmission of a people's beliefs and values. Language is also an expression of social struc-tures and attitudes. No culture can exist which does not have a natural language at its centre. A language thus reflects a particular culture. Culture in this article will be taken to mean whatever a person must know in order to function in a particular society (Wardhaugh 1998: 215. The article will look at two aspects: (1 the interrelationship between language and culture and its bearing on lexicography; and (2 the treatment of cultural aspects in Duramazwi Guru reChiShona (2001. Examples used in this article are drawn from the advanced Shona monolingual dictionary Duramazwi Guru reChiShona, and other Shona dictionaries, both monolingual and bilingual.

    Keywords: CULTURAL COMPETENCE, CULTURAL ASPECTS, CULTURAL MEANING, CULTURE, DICTIONARY, EUPHEMISM, EXTENDED MEANING, IDIOM, LEXICOGRAPHY, PROVERBS, SHONA, SHONA SOCIETY, TABOO

    Opsomming: Kulturele aspekte in die Sjona- eentalige woordeboek. By die samestelling van woordeboeke neem leksikograwe ook kennis van die kultuur wat inherent aan 'n taal is. Hierdie artikel sal kyk na die manier waarop die kulturele aspek verweef is met die praktyk van woordeboekmaak. Taal lê aan die kern van kultuur en dit is die hoofmedium vir die oordrag van 'n volk se opvattings en waardes. Taal is ook 'n uitdrukking van sosiale strukture en houdings. Geen kultuur kan bestaan wat nie 'n natuurlike taal as middelpunt het nie. 'n Taal weerspieël gevolglik 'n bepaalde kultuur. Kultuur in hierdie artikel sal verstaan word om alles te beteken wat 'n persoon moet weet om in 'n betrokke maatskappy te funksioneer

  12. Disregarding the Corpus: Head-word and Sense Treatment in Shona Monolingual Lexicography*

    Directory of Open Access Journals (Sweden)

    Webster M. Mavhu

    2011-10-01

    Full Text Available

    Abstract: With specific reference to Shona monolingual lexicography, this article discusses how corpus-based lexicographers might, in some instances, decide not strictly to adhere to the corpus when it comes to headword and sense treatment. The writer is a member of the African Languages Research Institute (ALRI, formerly known as the African Languages Lexical (ALLEX Project. ALRI is a nonfaculty interdisciplinary unit dedicated to research on and the development of African languages in Zimbabwe. The writer is part of the six-member team that compiled the now published Shona monolingual, synchronic, medium-sized and general-purpose dictionary Du-ramazwi Guru ReChiShona (2001. The article originates from the writer's experience of working on this dictionary. The article highlights the fact that being corpus-based does not necessarily imply being corpus-bound.

    Keywords: CORPUS, CORPUS-BASED, FREQUENCY, HEADWORD, LEXICOGRAPHY, SENSE, SHONA, SLANG, SYNONYMS

    Opsomming: Verontagsaming van die korpus: Trefwoord- en betekenisbe-handeling in die Sjona- eentalige leksikografie. Met spesifieke verwysing na die Sjona- eentalige leksikografie bespreek hierdie artikel hoe korpusgebaseerde leksikograwe in som-mige gevalle kan besluit om nie streng by die korpus te bly wanneer dit kom by trefwoord- en betekenisbehandeling nie. Die skrywer is 'n lid van die African Language Research Institute (AL-RI, vroeër bekend as die African Languages Lexical (ALLEX Project. ALRI is 'n niefakulteits- interdissiplinêre eenheid wat hom beywer vir navorsing oor en die ontwikkeling van die Afrikatale in Zimbabwe. Die skrywer is deel van 'n span van ses lede wat die reeds gepubliseerde Sjona- een-talige, sinchroniese, middelgroot en meerdoelige woordeboek Duramazwi Guru ReChiShona (2001 saamgestel het. Die artikel het uit die skrywer se ervaring van werk aan hierdie woordeboek ont-staan. Die artikel belig die feit dat korpusgebaseerdheid nie noodwendig

  13. Looking at the evidence in visual world: eye-movements reveal how bilingual and monolingual Turkish speakers process grammatical evidentiality.

    Science.gov (United States)

    Arslan, Seçkin; Bastiaanse, Roelien; Felser, Claudia

    2015-01-01

    This study presents pioneering data on how adult early bilinguals (heritage speakers) and late bilingual speakers of Turkish and German process grammatical evidentiality in a visual world setting in comparison to monolingual speakers of Turkish. Turkish marks evidentiality, the linguistic reference to information source, through inflectional affixes signaling either direct (-DI) or indirect (-mIş) evidentiality. We conducted an eye-tracking-during-listening experiment where participants were given access to visual 'evidence' supporting the use of either a direct or indirect evidential form. The behavioral results indicate that the monolingual Turkish speakers comprehended direct and indirect evidential scenarios equally well. In contrast, both late and early bilinguals were less accurate and slower to respond to direct than to indirect evidentials. The behavioral results were also reflected in the proportions of looks data. That is, both late and early bilinguals fixated less frequently on the target picture in the direct than in the indirect evidential condition while the monolinguals showed no difference between these conditions. Taken together, our results indicate reduced sensitivity to the semantic and pragmatic function of direct evidential forms in both late and early bilingual speakers, suggesting a simplification of the Turkish evidentiality system in Turkish heritage grammars. We discuss our findings with regard to theories of incomplete acquisition and first language attrition.

  14. Looking at the evidence in visual world: eye-movements reveal how bilingual and monolingual Turkish speakers process grammatical evidentiality

    Directory of Open Access Journals (Sweden)

    Seçkin eArslan

    2015-09-01

    Full Text Available This study presents pioneering data on how adult early bilinguals (heritage speakers and late bilingual speakers of Turkish and German process grammatical evidentiality in a visual world setting in comparison to monolingual speakers of Turkish. Turkish marks evidentiality, the linguistic reference to information source, through inflectional affixes signaling either direct (-DI or indirect (-mIş evidentiality. We conducted an eye-tracking-during-listening experiment where participants were given access to visual ‘evidence’ supporting the use of either a direct or indirect evidential form. The behavioral results indicate that the monolingual Turkish speakers comprehended direct and indirect evidential scenarios equally well. In contrast, both late and early bilinguals were less accurate and slower to respond to direct than to indirect evidentials. The behavioral results were also reflected in the proportions of looks data. That is, both late and early bilinguals fixated less frequently on the target picture in the direct than in the indirect evidential condition while the monolinguals showed no difference between these conditions. Taken together, our results indicate reduced sensitivity to the semantic and pragmatic function of direct evidential forms in both late and early bilingual speakers, suggesting a simplification of the Turkish evidentiality system in Turkish heritage grammars. We discuss our findings with regard to theories of incomplete acquisition and first language attrition.

  15. Cognitive profiles in bilingual children born to immigrant parents and Italian monolingual native children with specific learning disorders.

    Science.gov (United States)

    Riva, Anna; Nacinovich, Renata; Bertuletti, Nadia; Montrasi, Valentina; Marchetti, Sara; Neri, Francesca; Bomba, Monica

    2017-01-01

    The aim of this study is to compare the Wechsler Intelligence Scale for Children(®) - fourth edition IV (WISC IV) intellectual profile of two groups of children with specific learning disorder, a group of bilingual children and a group of monolingual Italian children, in order to identify possible significant differences between them. A group of 48 bilingual children and a group of 48 Italian monolingual children were included in this study. A preliminary comparison showed the homogeneity of the two groups regarding learning disorder typology and sociodemographic characteristics (age at WISC IV assessment, sex and years of education in Italy) with the exception of socioeconomic status. Socioeconomic status was then used as a covariate in the analysis. Even if the two groups were comparable in specific learning disorder severity and, in particular, in the text comprehension performance, our findings showed that the WISC IV performances of the bilingual group were significantly worse than the Italian group in Full Scale Intelligence Quotient (P=0.03), in General Ability Index (P=0.03), in Working Memory Index (P=0.009) and in some subtests and clusters requiring advanced linguistic abilities. These results support the hypothesis of a weakness in metalinguistic abilities in bilingual children with specific learning disorders than monolinguals. If confirmed, this result must be considered in the rehabilitation treatment.

  16. Cognitive profiles in bilingual children born to immigrant parents and Italian monolingual native children with specific learning disorders

    Science.gov (United States)

    Riva, Anna; Nacinovich, Renata; Bertuletti, Nadia; Montrasi, Valentina; Marchetti, Sara; Neri, Francesca; Bomba, Monica

    2017-01-01

    Purpose The aim of this study is to compare the Wechsler Intelligence Scale for Children® – fourth edition IV (WISC IV) intellectual profile of two groups of children with specific learning disorder, a group of bilingual children and a group of monolingual Italian children, in order to identify possible significant differences between them. Patients and methods A group of 48 bilingual children and a group of 48 Italian monolingual children were included in this study. A preliminary comparison showed the homogeneity of the two groups regarding learning disorder typology and sociodemographic characteristics (age at WISC IV assessment, sex and years of education in Italy) with the exception of socioeconomic status. Socioeconomic status was then used as a covariate in the analysis. Results Even if the two groups were comparable in specific learning disorder severity and, in particular, in the text comprehension performance, our findings showed that the WISC IV performances of the bilingual group were significantly worse than the Italian group in Full Scale Intelligence Quotient (P=0.03), in General Ability Index (P=0.03), in Working Memory Index (P=0.009) and in some subtests and clusters requiring advanced linguistic abilities. Conclusion These results support the hypothesis of a weakness in metalinguistic abilities in bilingual children with specific learning disorders than monolinguals. If confirmed, this result must be considered in the rehabilitation treatment. PMID:28115851

  17. Bilingualism at the core of the brain. Structural differences between bilinguals and monolinguals revealed by subcortical shape analysis.

    Science.gov (United States)

    Burgaleta, Miguel; Sanjuán, Ana; Ventura-Campos, Noelia; Sebastian-Galles, Núria; Ávila, César

    2016-01-15

    Naturally acquiring a language shapes the human brain through a long-lasting learning and practice process. This is supported by previous studies showing that managing more than one language from early childhood has an impact on brain structure and function. However, to what extent bilingual individuals present neuroanatomical peculiarities at the subcortical level with respect to monolinguals is yet not well understood, despite the key role of subcortical gray matter for a number of language functions, including monitoring of speech production and language control - two processes especially solicited by bilinguals. Here we addressed this issue by performing a subcortical surface-based analysis in a sample of monolinguals and simultaneous bilinguals (N=88) that only differed in their language experience from birth. This analysis allowed us to study with great anatomical precision the potential differences in morphology of key subcortical structures, namely, the caudate, accumbens, putamen, globus pallidus and thalamus. Vertexwise analyses revealed significantly expanded subcortical structures for bilinguals compared to monolinguals, localized in bilateral putamen and thalamus, as well as in the left globus pallidus and right caudate nucleus. A topographical interpretation of our results suggests that a more complex phonological system in bilinguals may lead to a greater development of a subcortical brain network involved in monitoring articulatory processes.

  18. Looking at the evidence in visual world: eye-movements reveal how bilingual and monolingual Turkish speakers process grammatical evidentiality

    Science.gov (United States)

    Arslan, Seçkin; Bastiaanse, Roelien; Felser, Claudia

    2015-01-01

    This study presents pioneering data on how adult early bilinguals (heritage speakers) and late bilingual speakers of Turkish and German process grammatical evidentiality in a visual world setting in comparison to monolingual speakers of Turkish. Turkish marks evidentiality, the linguistic reference to information source, through inflectional affixes signaling either direct (-DI) or indirect (-mIş) evidentiality. We conducted an eye-tracking-during-listening experiment where participants were given access to visual ‘evidence’ supporting the use of either a direct or indirect evidential form. The behavioral results indicate that the monolingual Turkish speakers comprehended direct and indirect evidential scenarios equally well. In contrast, both late and early bilinguals were less accurate and slower to respond to direct than to indirect evidentials. The behavioral results were also reflected in the proportions of looks data. That is, both late and early bilinguals fixated less frequently on the target picture in the direct than in the indirect evidential condition while the monolinguals showed no difference between these conditions. Taken together, our results indicate reduced sensitivity to the semantic and pragmatic function of direct evidential forms in both late and early bilingual speakers, suggesting a simplification of the Turkish evidentiality system in Turkish heritage grammars. We discuss our findings with regard to theories of incomplete acquisition and first language attrition. PMID:26441762

  19. English as a Foreign Language in Bilingual Language-minority Children, Children with Dyslexia and Monolingual Typical Readers.

    Science.gov (United States)

    Bonifacci, Paola; Canducci, Elisa; Gravagna, Giulia; Palladino, Paola

    2017-05-01

    The present study was aimed at investigating literacy skills in English as a foreign language in three different groups of children: monolinguals with dyslexia (n = 19), typically developing bilinguals (language-minority) (n = 19) and a control group of monolinguals (Italian) (n = 76). Bilinguals were not expected to fail in English measures, and their gap with monolinguals would be expected to be limited to the instructional language, owing to underexposure. All participants were enrolled in Italian primary schools (fourth and fifth grades). A non-verbal reasoning task and Italian and English literacy tasks were administered. The Italian battery included word and non-word reading (speed and accuracy), word and non-word writing, and reading comprehension; the English battery included similar tasks, except for the non-word writing. Bilingual children performed similarly to typical readers in English tasks, whereas in Italian tasks, their performance was similar to that of typical readers in reading speed but not in reading accuracy and writing. Children with dyslexia underperformed compared with typically developing children in all English and Italian tasks, except for reading comprehension in Italian. Profile analysis and correlational analyses were further discussed. These results suggest that English as a foreign language might represent a challenge for students with dyslexia but a strength for bilingual language-minority children. Copyright © 2017 John Wiley & Sons, Ltd. Copyright © 2017 John Wiley & Sons, Ltd.

  20. Online Object Tracking, Learning and Parsing with And-Or Graphs.

    Science.gov (United States)

    Wu, Tianfu; Lu, Yang; Zhu, Song-Chun

    2016-12-23

    This paper presents a method, called AOGTracker, for simultaneously tracking, learning and parsing (TLP) of unknown objects in video sequences with a hierarchical and compositional And-Or graph (AOG) representation. The TLP method is formulated in the Bayesian framework with a spatial and a temporal dynamic programming (DP) algorithms inferring object bounding boxes on-the-fly. During online learning, the AOG is discriminatively learned using latent SVM [1] to account for appearance (e.g., lighting and partial occlusion) and structural (e.g., different poses and viewpoints) variations of a tracked object, as well as distractors (e.g., similar objects) in background. Three key issues in online inference and learning are addressed: (i) maintaining purity of positive and negative examples collected online, (ii) controling model complexity in latent structure learning, and (iii) identifying critical moments to re-learn the structure of AOG based on its intrackability. The intrackability measures uncertainty of an AOG based on its score maps in a frame. In experiments, our AOGTracker is tested on two popular tracking benchmarks with the same parameter setting: the TB-100/50/CVPR2013 benchmarks [2], [3], and the VOT benchmarks [4] - VOT 2013, 2014, 2015 and TIR2015 (thermal imagery tracking). In the former, our AOGTracker outperforms state-of-the-art tracking algorithms including two trackers based on deep convolutional network [5], [6]. In the latter, our AOGTracker outperforms all other trackers in VOT2013 and is comparable to the state-of-the-art methods in VOT2014, 2015 and TIR2015.

  1. The learner as lexicographer: using monolingual and bilingual corpora to deepen vocabulary knowledge

    Directory of Open Access Journals (Sweden)

    Kristina HMELJAK SANGAWA

    2014-12-01

    Full Text Available Learning vocabulary is one of the most challenging tasks faced by learners with a non-kanji background when learning Japanese as a foreign language. However, learners are often not aware of the range of different aspects of word knowledge they need in order to successfully use Japanese. This includes not only the spoken and written form of a word and its meaning, but also morphological, grammatical, collocational, connotative and pragmatic knowledge as well as knowledge of social constraints to be observed. In this article, we present some background data on the use of dictionaries among students of Japanese at the University of Ljubljana, a selection of resources and a series of exercises developed with the following aims: a to foster greater awareness of the different aspects of Japanese vocabulary, both from a monolingual and a contrastive perspective, b to learn about tools and methods that can be applied in different contexts of language learning and language use, and c to develop strategies for learning new vocabulary, reinforcing knowledge about known vocabulary, and effectively using this knowledge in receptive and productive language tasks.

  2. Applying semantic-based probabilistic context-free grammar to medical language processing--a preliminary study on parsing medication sentences.

    Science.gov (United States)

    Xu, Hua; AbdelRahman, Samir; Lu, Yanxin; Denny, Joshua C; Doan, Son

    2011-12-01

    Semantic-based sublanguage grammars have been shown to be an efficient method for medical language processing. However, given the complexity of the medical domain, parsers using such grammars inevitably encounter ambiguous sentences, which could be interpreted by different groups of production rules and consequently result in two or more parse trees. One possible solution, which has not been extensively explored previously, is to augment productions in medical sublanguage grammars with probabilities to resolve the ambiguity. In this study, we associated probabilities with production rules in a semantic-based grammar for medication findings and evaluated its performance on reducing parsing ambiguity. Using the existing data set from 2009 i2b2 NLP (Natural Language Processing) challenge for medication extraction, we developed a semantic-based CFG (Context Free Grammar) for parsing medication sentences and manually created a Treebank of 4564 medication sentences from discharge summaries. Using the Treebank, we derived a semantic-based PCFG (Probabilistic Context Free Grammar) for parsing medication sentences. Our evaluation using a 10-fold cross validation showed that the PCFG parser dramatically improved parsing performance when compared to the CFG parser.

  3. Parsing social network survey data from hidden populations using stochastic context-free grammars.

    Directory of Open Access Journals (Sweden)

    Art F Y Poon

    Full Text Available BACKGROUND: Human populations are structured by social networks, in which individuals tend to form relationships based on shared attributes. Certain attributes that are ambiguous, stigmatized or illegal can create a OhiddenO population, so-called because its members are difficult to identify. Many hidden populations are also at an elevated risk of exposure to infectious diseases. Consequently, public health agencies are presently adopting modern survey techniques that traverse social networks in hidden populations by soliciting individuals to recruit their peers, e.g., respondent-driven sampling (RDS. The concomitant accumulation of network-based epidemiological data, however, is rapidly outpacing the development of computational methods for analysis. Moreover, current analytical models rely on unrealistic assumptions, e.g., that the traversal of social networks can be modeled by a Markov chain rather than a branching process. METHODOLOGY/PRINCIPAL FINDINGS: Here, we develop a new methodology based on stochastic context-free grammars (SCFGs, which are well-suited to modeling tree-like structure of the RDS recruitment process. We apply this methodology to an RDS case study of injection drug users (IDUs in Tijuana, México, a hidden population at high risk of blood-borne and sexually-transmitted infections (i.e., HIV, hepatitis C virus, syphilis. Survey data were encoded as text strings that were parsed using our custom implementation of the inside-outside algorithm in a publicly-available software package (HyPhy, which uses either expectation maximization or direct optimization methods and permits constraints on model parameters for hypothesis testing. We identified significant latent variability in the recruitment process that violates assumptions of Markov chain-based methods for RDS analysis: firstly, IDUs tended to emulate the recruitment behavior of their own recruiter; and secondly, the recruitment of like peers (homophily was dependent on

  4. Multi-Level Parsing Based Approach Against Phishing Attacks With the Help of Knowledge Bases

    Directory of Open Access Journals (Sweden)

    Gaurav Kumar Tak

    2013-11-01

    Full Text Available The increasing use of internet all over the world,be it in households or in corporate firms, has ledto anunprecedented rise in cyber-crimes. Amongst these the major chunk consists of Internet attacks which arethe most popular and common attacks are carried over the internet. Generally phishing attacks, SSLattacks and some other hacking attacks are kept into this category. Security against these attacks isthemajor issue of internet security in today’s scenario where internet has very deep penetration. Internet hasno doubt made our lives very convenient. It has provided many facilities to us at penny’s cost. For instanceit has made communication lightning fast and that too at a very cheap cost. But internet can pose addedthreats for those users who are not well versed inthe ways of internet and unaware of the security risksattached with it. Phishing Attacks, Nigerian Scam,Spam attacks, SSL attacks and other hacking attacksaresome of the most common and recent attacks to compromise the privacy of the internet users. Many a timesif the user isn’t careful, then these attacks are able to steal the confidential information of user (orunauthorized access. Generally these attacks are carried out with the help of social networking sites,popular mail server sites, online chatting sites etc. Nowadays, Facebook.com, gmail.com, orkut.com andmany other social networking sites are facing thesesecurity attack problems.This paper discusses a Knowledge Base Compound approach which is based on query operations andparsing techniques to counter these internet attacks using the web browser itself. In this approach wepropose to analyze the web URLs before visiting theactual site, so as to provide security against webattacks mentioned above. This approach employs various parsing operations and query processing whichuse many techniques to detect the phishing attacksas well as other web attacks. The aforementionedapproach is completely based on operation through the

  5. KAMUS BAHASA ARAB – INDONESIA ONLINE DENGAN PEMECAHAN SUKU KATA MENGGUNAKAN METODE PARSING

    Directory of Open Access Journals (Sweden)

    Anny Yuniarti

    2004-01-01

    Full Text Available Normal 0 false false false IN X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Kebutuhan umat Islam akan fasilitas penunjang belajar bahasa Arab di Indonesia masih belum terpenuhi dengan optimal. Kamus bahasa Arab yang beredar di pasaran sulit dipahami karena minimnya pengetahuan tentang ilmu tata bahasa Arab di kalangan umat Islam. Pada penelitian ini dikembangkan sebuah perangkat lunak yang berfungsi menerjemahkan kata berbahasa Arab dengan metode parsing sehingga dapat mencakup kata-kata yang telah mengalami perubahan bentuk dari bentuk dasarnya. Karena kata bahasa Arab memiliki turunan kata yang jumlahnya cukup besar, dan supaya kamus efisien, maka tidak semua turunan kata disimpan dalam basisdata. Oleh sebab itu diperlukan suatu cara untuk mengenali pola kata, dan cara mengetahui bentuk dasar suatu kata. Keseluruhan perangkat lunak ini diimplementasikan berbasis web sehingga memudahkan pengaksesan pengguna. Dan pengguna tidak memerlukan proses instalasi perangkat lunak atau sistem operasi tertentu. Pembuatan perangkat lunak ini didahului dengan perancangan proses dan perancangan interface. Kemudian rancangan tersebut diimplementasikan menjadi sebuah perangkat lunak yang siap untuk dipakai. Perangkat lunak yang sudah jadi tersebut telah diuji coba sesuai dengan spesifikasi kebutuhan

  6. First results from the PARSE.Insight project HEP survey on data preservation, re-use and (open) access

    CERN Document Server

    Holzner, André; Mele, Salvatore

    2009-01-01

    There is growing interest in the issues of preservation and re-use of the records of science, in the “digital era”. The aim of the PARSE.Insight project, partly financed by the European Commission under the Seventh Framework Program, is twofold: to provide an assessment of the current activities, trends and risks in the field of digital preservation of scientific results, from primary data to published articles; to inform the design of the preservation layer of an emerging e-Infrastructure for e-Science. CERN, as a partner of the PARSE.Insight consortium, is performing an in-depth case study on data preservation, re-use and (open) access within the High-Energy Physics (HEP) community. The first results of this large-scale survey of the attitudes and concerns of HEP scientists are presented. The survey reveals the widespread opinion that data preservation is “very important” to “crucial”. At the same time, it also highlights the chronic lack of resources and infrastructure to tackle this issue, as ...

  7. Expressive Vocabulary Development in Children from Bilingual and Monolingual Homes: A Longitudinal Study from Two to Four Years.

    Science.gov (United States)

    Hoff, Erika; Rumiche, Rosario; Burridge, Andrea; Ribot, Krystal M; Welsh, Stephanie N

    2014-10-01

    The early course of language development among children from bilingual homes varies in ways that are not well described and as a result of influences that are not well understood. Here, we describe trajectories of relative change in expressive vocabulary from 22 to 48 months and vocabulary achievement at 48 months in two groups of children from bilingual homes (children with one and children with two native Spanish-speaking parents [ns = 15 and 11]) and in an SES-equivalent group of children from monolingual English homes (n = 31). The two groups from bilingual homes differed in their mean levels of English and Spanish skills, in their developmental trajectories during this period, and in the relation between language use at home and their vocabulary development. Children with two native Spanish-speaking parents showed steepest gains in total vocabulary and were more nearly balanced bilinguals at 48 months. Children with one native Spanish- and one native English-speaking parent showed trajectories of relative decline in Spanish vocabulary. At 48 months, mean levels of English skill among the bilingual children were comparable to monolingual norms, but children with two native Spanish-speaking parents had lower English scores than the SES-equivalent monolingual group. Use of English at home was a significant positive predictor of English vocabulary scores only among children with a native English-speaking parent. These findings argue that efforts to optimize school readiness among children from immigrant families should facilitate their access to native speakers of the community language, and efforts to support heritage language maintenance should include encouraging heritage language use by native speakers in the home.

  8. Expressive Vocabulary Development in Children from Bilingual and Monolingual Homes: A Longitudinal Study from Two to Four Years

    Science.gov (United States)

    Hoff, Erika; Rumiche, Rosario; Burridge, Andrea; Ribot, Krystal M.; Welsh, Stephanie N.

    2014-01-01

    The early course of language development among children from bilingual homes varies in ways that are not well described and as a result of influences that are not well understood. Here, we describe trajectories of relative change in expressive vocabulary from 22 to 48 months and vocabulary achievement at 48 months in two groups of children from bilingual homes (children with one and children with two native Spanish-speaking parents [ns = 15 and 11]) and in an SES-equivalent group of children from monolingual English homes (n = 31). The two groups from bilingual homes differed in their mean levels of English and Spanish skills, in their developmental trajectories during this period, and in the relation between language use at home and their vocabulary development. Children with two native Spanish-speaking parents showed steepest gains in total vocabulary and were more nearly balanced bilinguals at 48 months. Children with one native Spanish- and one native English-speaking parent showed trajectories of relative decline in Spanish vocabulary. At 48 months, mean levels of English skill among the bilingual children were comparable to monolingual norms, but children with two native Spanish-speaking parents had lower English scores than the SES-equivalent monolingual group. Use of English at home was a significant positive predictor of English vocabulary scores only among children with a native English-speaking parent. These findings argue that efforts to optimize school readiness among children from immigrant families should facilitate their access to native speakers of the community language, and efforts to support heritage language maintenance should include encouraging heritage language use by native speakers in the home. PMID:25089074

  9. Differences between Spanish monolingual and Spanish-English bilingual children in their calculation of entailment-based scalar implicatures

    Directory of Open Access Journals (Sweden)

    Kristen Syrett

    2017-04-01

    Full Text Available In this paper, we extend investigations of the possible effects of cross-linguistic influence at the pragmatics-syntax interface (Hulk & Müller 2000; Müller & Hulk 2001; Serratrice, Sorace & Paoli 2004, by presenting two experiments designed to probe how Spanish monolingual and Spanish-English bilingual preschool-age children approach the ‘some, but not all’ 'scalar implicature '(SI associated with 'algunos '(‘some’. We compare 'algunos 'and 'unos '(also a ‘some’ indefinite, but one that is not context-linked and does not induce an SI, and 'algunos 'and 'todos '(the universal quantifier ‘every/all’. The performance of the children is compared to fluent adult Spanish heritage speakers. Experiment 1 is a variation of Noveck’s (2001 statement evaluation task, also replicated by Guasti et al'. '(2005. Experiment 2 is a forced-choice picture selection task. Results demonstrate that adults were the only group to consistently calculate the SI associated with 'algunos '– a finding that was expected to some extent, given that our tasks were stripped of the contextual support that could benefit children’s pragmatic reasoning. While bilingual and monolingual children displayed comparable performance across tasks, bilinguals in Experiment 2 appeared to experience difficulty with judgments related to 'todos '– a pattern we attribute (in light of independent findings to the cognitive overload in the task, not the lexical entry of this quantifier. We conclude that young monolingual and bilingual children confront the same challenges when called upon to deploy pragmatic skills in a discourse context. This article is part of the special collection:Acquisition of Quantification

  10. Cognitive profiles in bilingual children born to immigrant parents and Italian monolingual native children with specific learning disorders

    Directory of Open Access Journals (Sweden)

    Riva A

    2016-12-01

    Full Text Available Anna Riva, Renata Nacinovich, Nadia Bertuletti, Valentina Montrasi, Sara Marchetti, Francesca Neri, Monica Bomba Child and Adolescent Mental Health Department, University of Milan Bicocca, San Gerardo Hospital, Monza, Italy Purpose: The aim of this study is to compare the Wechsler Intelligence Scale for Children® – fourth edition IV (WISC IV intellectual profile of two groups of children with specific learning disorder, a group of bilingual children and a group of monolingual Italian children, in order to identify possible significant differences between them. Patients and methods: A group of 48 bilingual children and a group of 48 Italian monolingual children were included in this study. A preliminary comparison showed the homogeneity of the two groups regarding learning disorder typology and sociodemographic characteristics (age at WISC IV assessment, sex and years of education in Italy with the exception of socioeconomic status. Socioeconomic status was then used as a covariate in the analysis. Results: Even if the two groups were comparable in specific learning disorder severity and, in particular, in the text comprehension performance, our findings showed that the WISC IV performances of the bilingual group were significantly worse than the Italian group in Full Scale Intelligence Quotient (P=0.03, in General Ability Index (P=0.03, in Working Memory Index (P=0.009 and in some subtests and clusters requiring advanced linguistic abilities. Conclusion: These results support the hypothesis of a weakness in metalinguistic abilities in bilingual children with specific learning disorders than monolinguals. If confirmed, this result must be considered in the rehabilitation treatment. Keywords: children, bilingualism, WISC IV, SLD

  11. The Lexicographic Treatment of Sublexical and Multilexical Items in a Northern Sotho Monolingual Dictionary: A Challenge for Lexicographers

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    Motlokwe Clifford Mphahlele

    2011-10-01

    Full Text Available

    Abstract: Dictionaries have in the past used a word-based approach in which sublexical and multilexical items were not regarded as lemmata. Metalexicography as the theoretical component of lexicography requires that sublexical and multilexical items be lemmatized and treated as independent lemmata in the macrostructure of dictionaries. One of the greater challenges for compiling a better and user-oriented Northern Sotho monolingual dictionary is to treat sublexical and multi-lexical items as macrostructural elements. Treating these items, the lexicographer faces quite a number of challenges. This article proposes possible ways in which sublexical and multilexical elements could be successfully treated in a Northern Sotho monolingual dictionary. Taking stock of these challenges, the writer comes with suggestions that would assist lexicographers in the compi-lation of a user-friendly, lexicon-based monolingual dictionary that would lead users to successful information retrieval.

    Keywords: SUBLEXICAL ITEMS, MULTILEXICAL ITEMS, AFFIXES, PREFIXAL MOR-PHEMES, SUFFIXAL MORPHEMES, INTEGRATED MICROSTRUCTURE, WORD-BASED APPROACH, LEMMATIZATION, COLLOCATIONS, COMPOUNDS, COMPLEXES, GROUP PREPOSITIONS, FIXED EXPRESSIONS, MORPHEMES, METALEXICOGRAPHICAL ASPECTS, WORD-FORMATION PROCESSES, WORD-INTERNAL FUNCTION, USER-ORIENTED MONO-LINGUAL DICTIONARY, GRAMMAR, HOMONYMOUS LEMMA, POLYSEMOUS LEMMA, DECODING, ENCODING, SEMANTIC COMMENT, SEMANTIC TRANSPARENCY

    Opsomming: Die leksikografiese behandeling van subleksikale en multi-leksikale items in 'n Noord-Sotho- eentalige woordeboek: 'n Uitdaging vir leksikograwe. Woordeboeke het in die verlede 'n woordgebaseerde benadering gevolg waar-by subleksikale en multileksikale items nie as lemmas beskou is nie. Die metaleksikografie as die teoretiese komponent van die leksikografie vereis dat subleksikale en multileksikale items gelem-matiseer word en as onafhanklike lemmas in die makrostuktuur van woordeboeke

  12. Differences in the Association between Segment and Language: Early Bilinguals Pattern with Monolinguals and Are Less Accurate than Late Bilinguals

    Science.gov (United States)

    Blanco, Cynthia P.; Bannard, Colin; Smiljanic, Rajka

    2016-01-01

    Early bilinguals often show as much sensitivity to L2-specific contrasts as monolingual speakers of the L2, but most work on cross-language speech perception has focused on isolated segments, and typically only on neighboring vowels or stop contrasts. In tasks that include sounds in context, listeners’ success is more variable, so segment discrimination in isolation may not adequately represent the phonetic detail in stored representations. The current study explores the relationship between language experience and sensitivity to segmental cues in context by comparing the categorization patterns of monolingual English listeners and early and late Spanish–English bilinguals. Participants categorized nonce words containing different classes of English- and Spanish-specific sounds as being more English-like or more Spanish-like; target segments included phonemic cues, cues for which there is no analogous sound in the other language, or phonetic cues, cues for which English and Spanish share the category but for which each language varies in its phonetic implementation. Listeners’ language categorization accuracy and reaction times were analyzed. Our results reveal a largely uniform categorization pattern across listener groups: Spanish cues were categorized more accurately than English cues, and phonemic cues were easier for listeners to categorize than phonetic cues. There were no differences in the sensitivity of monolinguals and early bilinguals to language-specific cues, suggesting that the early bilinguals’ exposure to Spanish did not fundamentally change their representations of English phonology. However, neither did the early bilinguals show more sensitivity than the monolinguals to Spanish sounds. The late bilinguals however, were significantly more accurate than either of the other groups. These findings indicate that listeners with varying exposure to English and Spanish are able to use language-specific cues in a nonce-word language categorization

  13. Bilingual children's long-term outcomes in English as a second language: language environment factors shape individual differences in catching up with monolinguals.

    Science.gov (United States)

    Paradis, Johanne; Jia, Ruiting

    2017-01-01

    Bilingual children experience more variation in their language environment than monolingual children and this impacts their rate of language development with respect to monolinguals. How long it takes for bilingual children learning English as a second language (L2) to display similar abilities to monolingual age-peers has been estimated to be 4-6 years, but conflicting findings suggest that even 6 years in school is not enough. Most studies on long-term L2 development have focused on just one linguistic sub-domain, vocabulary, and have not included multiple individual difference factors. For the present study, Chinese first language-English L2 children were given standardized measures of vocabulary, grammar and global comprehension every year from 4 ½ to 6 ½ years of English in school (ages 8½ to 10½); language environment factors were obtained through an extensive parent questionnaire. Children converged on monolingual norms differentially according to the test, with the majority of children reaching monolingual levels of performance on the majority of tests by 5 ½ years of English exposure. Individual differences in outcomes were predicted by length of English exposure, mother's education, mother's English fluency, child's use of English in the home, richness/quality of the English input outside school and age of arrival in Canada. In sum, the timeframe for bilinguals to catch up to monolinguals depends on linguistic sub-domain, task difficulty and on individual children's language environment, making 4-6 years an approximate estimate only. This study also shows that language environment factors shape not only early-stage but also late-stage bilingual development.

  14. Rapid transcriptome characterization and parsing of sequences in a non-model host-pathogen interaction; pea-Sclerotinia sclerotiorum

    Directory of Open Access Journals (Sweden)

    Zhuang Xiaofeng

    2012-11-01

    Full Text Available Abstract Background White mold, caused by Sclerotinia sclerotiorum, is one of the most important diseases of pea (Pisum sativum L., however, little is known about the genetics and biochemistry of this interaction. Identification of genes underlying resistance in the host or pathogenicity and virulence factors in the pathogen will increase our knowledge of the pea-S. sclerotiorum interaction and facilitate the introgression of new resistance genes into commercial pea varieties. Although the S. sclerotiorum genome sequence is available, no pea genome is available, due in part to its large genome size (~3500 Mb and extensive repeated motifs. Here we present an EST data set specific to the interaction between S. sclerotiorum and pea, and a method to distinguish pathogen and host sequences without a species-specific reference genome. Results 10,158 contigs were obtained by de novo assembly of 128,720 high-quality reads generated by 454 pyrosequencing of the pea-S. sclerotiorum interactome. A method based on the tBLASTx program was modified to distinguish pea and S. sclerotiorum ESTs. To test this strategy, a mixture of known ESTs (18,490 pea and 17,198 S. sclerotiorum ESTs from public databases were pooled and parsed; the tBLASTx method successfully separated 90.1% of the artificial EST mix with 99.9% accuracy. The tBLASTx method successfully parsed 89.4% of the 454-derived EST contigs, as validated by PCR, into pea (6,299 contigs and S. sclerotiorum (2,780 contigs categories. Two thousand eight hundred and forty pea ESTs and 996 S. sclerotiorum ESTs were predicted to be expressed specifically during the pea-S. sclerotiorum interaction as determined by homology search against 81,449 pea ESTs (from flowers, leaves, cotyledons, epi- and hypocotyl, and etiolated and light treated etiolated seedlings and 57,751 S. sclerotiorum ESTs (from mycelia at neutral pH, developing apothecia and developing sclerotia. Among those ESTs specifically expressed

  15. TOWARDS A RULE PREFERENCE BASED APPROACH TO LSD PARSING%一种基于优先关系的LSD分析算法

    Institute of Scientific and Technical Information of China (English)

    李沐; 姚天顺

    2001-01-01

    Natural language parsing plays an import rule in the machine translation research. This paper first introduces some fundamental concepts with LSD based syntactic parsing, then proposes a rule preference based LSD parsing algorithm. In this approach, both the preference based on structural information and the preference based on lexical statistical information is considered in syntactic disambiguation. The complexity of the algorithm is given. The results show that this approach can improve the accuracy of the parsing accuracy and recall of properly used LSF by around 10% under the condition that the parser's performance unchanged. This approach shows itself a promising technique in efficient natural language parsing.%句法分析是机器翻译中的一个重要环节.首先介绍了基于LSD方法进行句法分析的基金概念,然后提出了一种基于优先关系的确定性LSD算法,主要讨论了基于句法结构信息优先关系和基于词汇统计优先关系的句法结构歧义消解策略,并给出了具体实现方法和复杂性分析.实验结果表明,该方法在保持确定性算法分析效率的前提下,提高了分析结果的正确率和规则应用的召回率.

  16. Using a sharp instrument to parse apart strategy and consistency: an evaluation of PPT and its assumptions.

    Science.gov (United States)

    Trafimow, David; Rice, Stephen

    2011-01-01

    Potential Performance Theory (PPT) is a general theory for parsing observed performance into the underlying strategy and the consistency with which it is used. Although empirical research has supported that PPT is useful, it is desirable to have more information about the bias and standard errors of PPT findings. It also is beneficial to know the effects of violations of PPT assumptions. The authors present computer simulations that evaluate bias and standard errors at varying levels of strategy, consistency, and number of trials per participant. The simulations show that, when the assumptions are true, there is very little bias and the standard errors are low when there are moderate or large numbers of trials per participant (e.g., N=50 or N=100). But when the independence assumption is violated, PPT provides biased findings, although the bias is quite small unless the violations are large.

  17. DESEMPENHO DO PROCESSAMENTO AUTOMÁTICO DE VERBOS DO PORTUGUÊS BRASILEIRO PELOS ETIQUETADORES TREETAGGER E AUTOMATIC PARSE

    Directory of Open Access Journals (Sweden)

    EVANGELISTA, Flávia Regina de Santana

    2014-04-01

    Full Text Available Verbs involve semantic, morphologic and pragmatic features that compounds a complex grammatical class and this becomes complicate its computational processing because anytime automatic parsers fail at codifying specific meanings context dependents, resulting ambiguity in language. To improve the automatic language processing we analyze the performance of two software taggers – Automatic Parse and Treetagger – in verbs of Portuguese. The results point that is necessary the development of semantic-discursive tags to verbs in automatic taggers: besides few tag mistakes in the corpora these were recurrent in same contexts. Por envolverem traços semânticos, morfológicos e pragmáticos, os verbos compõe uma classe gramatical complexa, o que torna complicado o seu processamento computacional, pois muitas vezes os analisadores automáticos não conseguem captar as minúcias de significação que são dependentes do contexto linguístico, gerando ambiguidades. Para aprimorar o processamento automático da linguagem, analisamos o desempenho de dois etiquetadores, o Automatic Parse e o Treetagger, a fim de observar as suas limitações na etiquetagem de verbos do português. Os resultados obtidos reforçam a necessidade de desenvolvimento de etiquetas semântico-discursivas para verbos nos analisadores automáticos, pois, apesar de serem poucos em relação ao número total de palavras do corpus, os erros de etiquetagem de verbos foram significativos e se mostraram frequentes.

  18. Bilingual and Monolingual EFL learners’ Use of Writing Metacognitive Strategies and Writing Performance

    Directory of Open Access Journals (Sweden)

    Fatemeh Poorebrahim

    2017-04-01

    Full Text Available Research has shown that writing skill of Iranian learners is not at a satisfactory level. One  of  the  ways  to  develop  writing  ability  is  to  improve  strategic  behavior  of  learners.  The current  study  set  out  to  compare  writing  performances  and  patterns  of  using  metacognitive strategies  in  bilinguals  and  monolinguals  as  well  as  seniors  and  freshmen  students.  A  total  of 176  English  major  university  students  took  part  in  the  study  (88  bilinguals  and  88 monolinguals.  Data  were  collected  through  three  instruments:  a  background  questionnaire,  a writing  metacognitive  strategy  questionnaire,  and  participants’  compositions.  A  two-way factorial  ANOVA  was  used  to  analyze  the  data  obtained  through  the  strategy  questionnaire. Since the composition data were not parametric, two Kruskall-Wallis tests were employed for data  analysis. The  results  revealed  that  bilinguals  used  more  metacognitive  strategies  and  had higher  writing  scores  than  monolinguals.  In  addition,  seniors  had  better  writing  performance than freshmen while the difference between them in using strategies was not significant. Based on the results, it can be concluded that teaching writing metacognitive strategies may result in a better writing performance.   استفاده از راهبردهای فراشناختی نوشتار و مهارت نوشتاری زبان آموزان یک زبانه و دو زبانه   تحقیقات اخیر حاکی از عملکرد ضعیف زبان آموزان ایرانی در مهارت نوشتار زبان انگلیسی است. یکی از روشهای بهبود مهارت نوشتار تقویت رفتار استراتژیک زبان آموزان است. در تحقیق پیش رو به مقایسه مهارت نوشتار و الگوهای

  19. Adult Monolingual Policy Becomes Children's Bilingual Practice: Code-Alternation among Children and Staff in an English-Medium Preschool in Sweden

    Science.gov (United States)

    Boyd, Sally; Ottesjö, Cajsa

    2016-01-01

    Parents, teachers and institutions often attempt to implement monolingual policies in bilingual settings, believing that they thereby facilitate children's bilingual development. Children, however, often have their own communicative agendas. In this study, we investigate how the twofold language policy of an English-medium preschool in Sweden is…

  20. The Role of Vocabulary Depth in Predicting Reading Comprehension among English Monolingual and Spanish-English Bilingual Children in Elementary School

    Science.gov (United States)

    Proctor, C. Patrick; Silverman, Rebecca D.; Harring, Jeffrey R.; Montecillo, Christine

    2012-01-01

    The present study investigated the role of vocabulary depth in reading comprehension among a diverse sample of monolingual and bilingual children in grades 2-4. Vocabulary depth was defined as including morphological awareness, awareness of semantic relations, and syntactic awareness. Two hundred ninety-four children from 3 schools in a…

  1. Linguistic Knowledge, Fluency and Meta-Cognitive Knowledge as Components of Reading Comprehension in Adolescent Low Achievers: Differences between Monolinguals and Bilinguals

    Science.gov (United States)

    Trapman, Mirjam; van Gelderen, Amos; van Steensel, Roel; van Schooten, Erik; Hulstijn, Jan

    2014-01-01

    In this study we investigate the role of linguistic knowledge, fluency and meta-cognitive knowledge in Dutch reading comprehension of monolingual and bilingual adolescent academic low achievers in the Netherlands. Results show that these components are substantially associated with reading comprehension. However, their role appears to be different…

  2. Importance of Phonological and Orthographic Skills for English Reading and Spelling: A Comparison of English Monolingual and Mandarin-English Bilingual Children

    Science.gov (United States)

    Yeong, Stephanie H. M.; Fletcher, Janet; Bayliss, Donna M.

    2014-01-01

    This cross-sectional study examines the importance of English phonological and orthographic processing skills to English word reading and spelling in 3 groups of younger (8-9 years) and older (11-12 years) children from different language backgrounds: English monolingual, English first language (L1)-Mandarin second language (L2), and Mandarin…

  3. The development of comprehension and reading-related skills in children learning English as an additional language and their monolingual, English-speaking peers.

    Science.gov (United States)

    Burgoyne, K; Whiteley, H E; Hutchinson, J M

    2011-06-01

    A significant number of pupils in UK schools learn English as an additional language (EAL). Relative differences between the educational attainment of this group and monolingual, English-speaking pupils call for an exploration of the literacy needs of EAL learners. This study explores the developmental progression of reading and listening comprehension skills and a range of reading-related skills in EAL learners, whose first language is of South Asian origin, and their monolingual peers. Participants were 39 children learning EAL and 39 monolingual, English-speaking children who were all in school Year 3 at the start of the study. Children completed standardized measures of comprehension, vocabulary, reading accuracy, and reading fluency in school Year 3 and again in Year 4. The results suggest that, although children learning EAL often demonstrate fast and accurate reading accuracy skills, lower levels of vocabulary knowledge place significant constraints on EAL learners' comprehension of spoken and written texts. Reciprocal relationships between vocabulary and comprehension may lead to increasing gaps in reading comprehension between monolingual and EAL pupils over time. It is proposed that support for the development of vocabulary skills in children learning EAL is needed in early years' classrooms. ©2010 The British Psychological Society.

  4. The Role of Word Decoding, Vocabulary Knowledge and Meta-Cognitive Knowledge in Monolingual and Bilingual Low-Achieving Adolescents' Reading Comprehension

    Science.gov (United States)

    van Steensel, Roel; Oostdam, Ron; van Gelderen, Amos; van Schooten, Erik

    2016-01-01

    In this study, we analysed the relationships between word decoding, vocabulary knowledge, meta-cognitive knowledge and reading comprehension in low-achieving adolescents and examined whether the strength of these relationships differed between Grade 7 and 9 students and between monolingual and bilingual students. Tests were administered to 328…

  5. The Effects of Dual-Language Support on the Language Skills of Bilingual Children with Hearing Loss Who Use Listening Devices Relative to Their Monolingual Peers

    Science.gov (United States)

    Bunta, Ferenc; Douglas, Michael

    2013-01-01

    Purpose: The present study investigated the effects of supporting both English and Spanish on language outcomes in bilingual children with hearing loss (HL) who used listening devices (cochlear implants and hearing aids). The English language skills of bilingual children with HL were compared to those of their monolingual English-speaking peers'…

  6. The Role of Oral Language Skills in Reading and Listening Comprehension of Text: A Comparison of Monolingual (L1) and Bilingual (L2) Speakers of English Language

    Science.gov (United States)

    Babayigit, Selma

    2014-01-01

    The study examined the role of oral language skills in reading comprehension and listening comprehension levels of 125 monolingual (L1) and bilingual (L2) English-speaking learners (M = 121.5 months, SD = 4.65) in England. All testing was conducted in English. The L1 learners outperformed their L2 peers on the measures of oral language and text…

  7. The Effects of Dual-Language Support on the Language Skills of Bilingual Children with Hearing Loss Who Use Listening Devices Relative to Their Monolingual Peers

    Science.gov (United States)

    Bunta, Ferenc; Douglas, Michael

    2013-01-01

    Purpose: The present study investigated the effects of supporting both English and Spanish on language outcomes in bilingual children with hearing loss (HL) who used listening devices (cochlear implants and hearing aids). The English language skills of bilingual children with HL were compared to those of their monolingual English-speaking peers'…

  8. The Role of Oral Language Skills in Reading and Listening Comprehension of Text: A Comparison of Monolingual (L1) and Bilingual (L2) Speakers of English Language

    Science.gov (United States)

    Babayigit, Selma

    2014-01-01

    The study examined the role of oral language skills in reading comprehension and listening comprehension levels of 125 monolingual (L1) and bilingual (L2) English-speaking learners (M = 121.5 months, SD = 4.65) in England. All testing was conducted in English. The L1 learners outperformed their L2 peers on the measures of oral language and text…

  9. Linguistic Knowledge, Fluency and Meta-Cognitive Knowledge as Components of Reading Comprehension in Adolescent Low Achievers: Differences between Monolinguals and Bilinguals

    Science.gov (United States)

    Trapman, Mirjam; van Gelderen, Amos; van Steensel, Roel; van Schooten, Erik; Hulstijn, Jan

    2014-01-01

    In this study we investigate the role of linguistic knowledge, fluency and meta-cognitive knowledge in Dutch reading comprehension of monolingual and bilingual adolescent academic low achievers in the Netherlands. Results show that these components are substantially associated with reading comprehension. However, their role appears to be different…

  10. The Development of Comprehension and Reading-Related Skills in Children Learning English as an Additional Language and Their Monolingual, English-Speaking Peers

    Science.gov (United States)

    Burgoyne, K.; Whiteley, H. E.; Hutchinson, J. M.

    2011-01-01

    Background: A significant number of pupils in UK schools learn English as an additional language (EAL). Relative differences between the educational attainment of this group and monolingual, English-speaking pupils call for an exploration of the literacy needs of EAL learners. Aims: This study explores the developmental progression of reading and…

  11. A Comparison between Verbal Working Memory and Vocabulary in Bilingual and Monolingual South African School Beginners: Implications for Bilingual Language Assessment

    Science.gov (United States)

    Cockcroft, Kate

    2016-01-01

    This study compared bilingual and monolingual school beginners on measures of simple and complex verbal working memory and receptive and expressive vocabulary. The aim was to determine whether the tests of working memory are fairer measures of language ability than the vocabulary tests for bilingual children when tested in their second language.…

  12. Développement phonético-phonologique en fulfulde et bambara d’enfants monolingues et bilingues : étude du babillage et des premiers mots

    NARCIS (Netherlands)

    Cissé, Ibrahima Abdoul Hayou

    2014-01-01

    This descriptive and analytical study is based on two corpora of audiovisual data of monolingual and multilingual children’s babbling and first words gathered in Mali during a period of nearly a year. It is concerned with fundamental discussions about the development and acquisition of language such

  13. Importance of Phonological and Orthographic Skills for English Reading and Spelling: A Comparison of English Monolingual and Mandarin-English Bilingual Children

    Science.gov (United States)

    Yeong, Stephanie H. M.; Fletcher, Janet; Bayliss, Donna M.

    2014-01-01

    This cross-sectional study examines the importance of English phonological and orthographic processing skills to English word reading and spelling in 3 groups of younger (8-9 years) and older (11-12 years) children from different language backgrounds: English monolingual, English first language (L1)-Mandarin second language (L2), and Mandarin…

  14. The Intercultural Turn Brought about by the Implementation of CLIL Programmes in Spanish Monolingual Areas: A Case Study of Andalusian Primary and Secondary Schools

    Science.gov (United States)

    Méndez García, María del Carmen

    2013-01-01

    In monolingual areas such as the southern Spanish Autonomous Community of Andalusia, the progressive introduction of Content and Language Integrated Learning (CLIL) programmes in a wide range of primary and secondary schools has probably produced the biggest turning point in Spain's modern educational history. CLIL is initially focused on…

  15. Development and Validation of Extract the Base: An English Derivational Morphology Test for Third through Fifth Grade Monolingual Students and Spanish-Speaking English Language Learners

    Science.gov (United States)

    Goodwin, Amanda P.; Huggins, A. Corinne; Carlo, Maria; Malabonga, Valerie; Kenyon, Dorry; Louguit, Mohammed; August, Diane

    2012-01-01

    This study describes the development and validation of the Extract the Base test (ETB), which assesses derivational morphological awareness. Scores on this test were validated for 580 monolingual students and 373 Spanish-speaking English language learners (ELLs) in third through fifth grade. As part of the validation of the internal structure,…

  16. Word Segmentation in Monolingual Infants Acquiring Canadian English and Canadian French: Native Language, Cross-Dialect, and Cross-Language Comparisons

    Science.gov (United States)

    Polka, Linda; Sundara, Megha

    2012-01-01

    In five experiments, we tested segmentation of word forms from natural speech materials by 8-month-old monolingual infants who are acquiring Canadian French or Canadian English. These two languages belong to different rhythm classes; Canadian French is syllable-timed and Canada English is stress-timed. Findings of Experiments 1, 2, and 3 show that…

  17. The Intercultural Turn Brought about by the Implementation of CLIL Programmes in Spanish Monolingual Areas: A Case Study of Andalusian Primary and Secondary Schools

    Science.gov (United States)

    Méndez García, María del Carmen

    2013-01-01

    In monolingual areas such as the southern Spanish Autonomous Community of Andalusia, the progressive introduction of Content and Language Integrated Learning (CLIL) programmes in a wide range of primary and secondary schools has probably produced the biggest turning point in Spain's modern educational history. CLIL is initially focused on…

  18. Chinese Parsing Based on Structural Support Vector Machine%基于结构化支持向量机的中文句法分析

    Institute of Scientific and Technical Information of China (English)

    王文剑; 王亚贝

    2011-01-01

    通过构造结构化函数ψ(x,y),提出一种基于结构化支持向量机(SVM-Struct)的中文句法分析方法.实验结果表明,与经典的概率上下文无关文法(PCFG)相比,文章提出的方法在中文句法分析方面是十分有效的.%A structural support vector machine (SVM-Struct) approach for Chinese parsing was introduced by constructing structural function ψ(x, y) . Comparing with the traditional probabilistic context free grammar (PCFG) ,the experiment results demonstrate that the proposed SVM-Struct approach is effective for Chinese parsing.

  19. The Monolingual Lusoga Dictionary Faced with Demands from a New User Category

    Directory of Open Access Journals (Sweden)

    Minah Nabirye

    2011-10-01

    Full Text Available

    ABSTRACT: In this article, a case is presented of an existing dictionary that is aimed at users with a minimum of primary 7 education, now faced with demands from users in primary 1–3. The reason for this demand is the result of the fact that Lusoga is currently being implemented as a medium of instruction in Uganda, in an environment where there is hardly any literature to serve the intended purpose. A review of the existing literature in and on Lusoga shows that the monolingual Lusoga dictionary — Eiwanika ly'Olusoga (WSG — is the only reference work with essential information, in Lusoga, that can initiate the teaching of Lusoga at the elementary level. Although the information in the WSG may fit the purpose at hand, that information is mainly presented as a summary, with statements of conclusions only. Explanations to ease its access to the new user are thus missing. Findings from a pilot study conducted by the National Curriculum Development Centre on the implementation of the teaching of Lusoga reveal that the new user is not only the primary 1–3 pupil, but also the teacher who will need to instruct that pupil. Since children's literature requires additional consideration beyond what can be presently availed, and since the WSG was actually compiled for an advanced user, the focus is shifted from the primary 1–3 pupil to the primary teacher. For that teacher, it is suggested to compile an additional Guide, expanding on the various extra-matter texts and especially the Language Portrait found in the WSG. This is done on the assumption that once the information is expanded and re-represented, a teacher will be able to combine the information in the Guide with that in the WSG, in order to make a Lusoga syllabus from which to draft Lusoga lessons. Although the ideal would of course be to be able to produce fully-fledged customised primers from scratch, this article's main argument is that in the absence of both human and financial

  20. High-content image informatics of the structural nuclear protein NuMA parses trajectories for stem/progenitor cell lineages and oncogenic transformation.

    Science.gov (United States)

    Vega, Sebastián L; Liu, Er; Arvind, Varun; Bushman, Jared; Sung, Hak-Joon; Becker, Matthew L; Lelièvre, Sophie; Kohn, Joachim; Vidi, Pierre-Alexandre; Moghe, Prabhas V

    2017-02-01

    Stem and progenitor cells that exhibit significant regenerative potential and critical roles in cancer initiation and progression remain difficult to characterize. Cell fates are determined by reciprocal signaling between the cell microenvironment and the nucleus; hence parameters derived from nuclear remodeling are ideal candidates for stem/progenitor cell characterization. Here we applied high-content, single cell analysis of nuclear shape and organization to examine stem and progenitor cells destined to distinct differentiation endpoints, yet undistinguishable by conventional methods. Nuclear descriptors defined through image informatics classified mesenchymal stem cells poised to either adipogenic or osteogenic differentiation, and oligodendrocyte precursors isolated from different regions of the brain and destined to distinct astrocyte subtypes. Nuclear descriptors also revealed early changes in stem cells after chemical oncogenesis, allowing the identification of a class of cancer-mitigating biomaterials. To capture the metrology of nuclear changes, we developed a simple and quantitative "imaging-derived" parsing index, which reflects the dynamic evolution of the high-dimensional space of nuclear organizational features. A comparative analysis of parsing outcomes via either nuclear shape or textural metrics of the nuclear structural protein NuMA indicates the nuclear shape alone is a weak phenotypic predictor. In contrast, variations in the NuMA organization parsed emergent cell phenotypes and discerned emergent stages of stem cell transformation, supporting a prognosticating role for this protein in the outcomes of nuclear functions.

  1. 增强图元文件的解析及交互编辑%PARSING AND INTERACTIVELY EDITING ENHANCED METAFILE

    Institute of Scientific and Technical Information of China (English)

    陈启文; 杜晓荣; 徐燕

    2011-01-01

    介绍增强图元文件EMF(Enhanced Metafile)的结构,建立了EMF记录与对象模型的映射关系,并基于映射关系实现了EMF的解析流程,解析的结果以对象形式表示.采用图形选定算法,实现了基于图形对象的交互编辑技术.通过对一个EMF实例的解析显示及交互编辑结果,证明该方法具有良好的可行性.%This paper demonstrates the structure of the enhanced metafile (EMF). Meanwhile, the mapping relationship between the EMF records and the object models is established. The parsing process of EMF is realised based on mapping relationship, and the parsed results can be represented in form of the objects. With the adoption of graphic-selection algorithm, the interactive editing technique based on graphic objects is implemented. Finally, the display of parsing on an EMF example and interactively editing its result prove the feasibility and interactivity of the methods described in the paper.

  2. Parsing the heterogeneity of impulsivity: A meta-analytic review of the behavioral implications of the UPPS for psychopathology.

    Science.gov (United States)

    Berg, Joanna M; Latzman, Robert D; Bliwise, Nancy G; Lilienfeld, Scott O

    2015-12-01

    The construct of impulsivity is implicated in a wide variety of psychopathology. However, the heterogeneous factors or subcomponents that differentially predict outcomes are still in the process of being parsed. The present review and meta-analysis focuses on the psychopathological correlates of the Negative Urgency, (lack of) Premeditation, (lack of) perseverance, Sensation Seeking, and Positive Urgency (UPPS/UPPS-P; Whiteside & Lynam, 2001). which provides a relatively new model of impulsivity that posits 5 potentially overlapping pathways to impulsive action. The present meta-analysis included 115 studies that used the UPPS, with a total of 40,432 participants. Findings suggested that the Negative Urgency pathway to impulsivity demonstrated the greatest correlational effect sizes across all forms of psychopathology, with the Positive Urgency pathway demonstrating a pattern of correlations similar to that of Negative Urgency. These findings raise questions regarding the conceptual and practical separability of these pathways. Lack of Premeditation and Lack of Perseverance also demonstrated similar correlational patterns, suggesting that further investigation of the distinctiveness of these pathways is warranted.

  3. Research on PDF Parsing and Parallel Display Technology on Cluster%PDF集群并行解析显示技术研究

    Institute of Scientific and Technical Information of China (English)

    罗明宇; 付燕平; 刘其军; 归强

    2014-01-01

    A PDF parsing and parallel display technology on cluster is presented to solve high resolution display problem. The importance of the PDF rendering in the tile high resolution system and the PDF format and hierarchical relationship are analyzed. The advantages and disadvantages of both poppler and mupdf library are studied to parse PDF information on cluster and parallel display on the tiled high res-olution system. And use these two libraries to achieve the PDF file parsing and cluster parallel display on the tiled high resolution system. The comparison tests show that the display results are clearer and more efficient for PDF parsing with mupdf library in the cluster parallel tiled high resolution display system. Also,the display resolution of PDF information is greatly increased by the PDF parsing and parallel display technology.%针对大型拼接显示系统对PDF文件高分辨显示的需求,文中研究了集群并行高分辨信息显示平台的显示技术,分析了PDF在大屏显示系统中的重要性以及PDF文件格式和层次关系,研究并探讨了poppler库和mupdf库的优缺点,以及对PDF文件格式的解析与显示技术,并基于poppler库和mupdf库分别实现了PDF文件的解析和集群并行显示。通过对比实验,采用mupdf库能够更清晰、高效地实现PDF集群并行显示,验证了文中提出的PDF集群并行解析显示技术可极大地提高大型拼接显示系统对PDF文件的高分辨显示处理能力。

  4. 基于数据流分析的网络协议逆向解析技术%Network protocol reverse parsing technique based on dataflow analysis

    Institute of Scientific and Technical Information of China (English)

    戴理; 舒辉; 黄荷洁

    2013-01-01

    对未知网络协议进行逆向解析在网络安全应用中具有重要的意义.现有的协议逆向解析方法大都存在无法处理加密协议和无法获取协议字段语义信息的问题.针对这一问题,提出并实现了一种基于数据流分析的网络协议解析技术.该技术依托动态二进制插桩平台Pin下编写的数据流记录插件,以基于数据关联性分析的数据流跟踪技术为基础,对软件使用的网络通信协议进行解析,获取协议的格式信息,以及各个协议字段的语义.实验结果证明,该技术能够正确解析出软件通信的协议格式,并提取出各个字段所对应的程序行为语义,尤其对于加密协议有不错的解析效果,达到了解析网络协议的目的.%Reverse parsing unknown network protocol is of great significance in many network security applications. Most of the existing protocol reverse parsing methods can not handle the encryption protocol or get the semantic information of the protocol field. To solve this problem, a network protocol parsing technique based on dataflow analysis was proposed. According to the data flow recording tool developed on Pin platform, it could parse the network protocol with the aid of the dependence analysis based data flow tracking technology, as well as obtain the protocol format and semantic information of each protocol field. The experimental results show that the technique can parse out the protocol format correctly, especially for the encryption protocol, and extract the program behavior semantics of each protocol field.

  5. Motion Event Similarity Judgments in One or Two Languages: An Exploration of Monolingual Speakers of English and Chinese vs. L2 Learners of English.

    Science.gov (United States)

    Ji, Yinglin

    2017-01-01

    Languages differ systematically in how to encode a motion event. English characteristically expresses manner in verb root and path in verb particle; in Chinese, varied aspects of motion, such as manner, path and cause, can be simultaneously encoded in a verb compound. This study investigates whether typological differences, as such, influence how first and second language learners conceptualize motion events, as suggested by behavioral evidences. Specifically, the performance of Chinese learners of English, at three proficiencies, was compared to that of two groups of monolingual speakers in a triads matching task. The first set of analyses regarding categorisation preferences indicates that participants across groups preferred the path-matched (rather than manner-matched) screens. However, the second set of analyses regarding reaction time suggests, firstly, that English monolingual speakers reacted significantly more quickly in selecting the manner-matched scenes compared with monolingual speakers of Chinese, who tended to use an approximately equal amount of time in making manner- and path-matched decisions, a finding that can arguably be mapped onto the typological difference between the two languages. Secondly, the pattern of response latency in low-level L2 learners looked more like that of monolingual speakers of Chinese. Only at intermediate and advanced levels of acquisition did the behavioral pattern of L2 learners become target-like, thus suggesting language-specific constraints from the L1 at an early stage of acquisition. Overall, our results suggest that motion event cognition may be linked to, among other things, the linguistic structure of motion description in particular languages.

  6. Motion Event Similarity Judgments in One or Two Languages: An Exploration of Monolingual Speakers of English and Chinese vs. L2 Learners of English

    Science.gov (United States)

    Ji, Yinglin

    2017-01-01

    Languages differ systematically in how to encode a motion event. English characteristically expresses manner in verb root and path in verb particle; in Chinese, varied aspects of motion, such as manner, path and cause, can be simultaneously encoded in a verb compound. This study investigates whether typological differences, as such, influence how first and second language learners conceptualize motion events, as suggested by behavioral evidences. Specifically, the performance of Chinese learners of English, at three proficiencies, was compared to that of two groups of monolingual speakers in a triads matching task. The first set of analyses regarding categorisation preferences indicates that participants across groups preferred the path-matched (rather than manner-matched) screens. However, the second set of analyses regarding reaction time suggests, firstly, that English monolingual speakers reacted significantly more quickly in selecting the manner-matched scenes compared with monolingual speakers of Chinese, who tended to use an approximately equal amount of time in making manner- and path-matched decisions, a finding that can arguably be mapped onto the typological difference between the two languages. Secondly, the pattern of response latency in low-level L2 learners looked more like that of monolingual speakers of Chinese. Only at intermediate and advanced levels of acquisition did the behavioral pattern of L2 learners become target-like, thus suggesting language-specific constraints from the L1 at an early stage of acquisition. Overall, our results suggest that motion event cognition may be linked to, among other things, the linguistic structure of motion description in particular languages. PMID:28638355

  7. Développement phonético-phonologique en fulfulde et bambara d’enfants monolingues et bilingues: étude du babillage et des premiers mots

    OpenAIRE

    Cissé, Ibrahima Abdoul Hayou

    2014-01-01

    This descriptive and analytical study is based on two corpora of audiovisual data of monolingual and multilingual children’s babbling and first words gathered in Mali during a period of nearly a year. It is concerned with fundamental discussions about the development and acquisition of language such as the issue of the presence or absence of evidence of early specialization in children at the babbling stage, the continuity between babbling and first words, and the emergence and development of...

  8. Les expressions idiomatiques: description théorique et traitement dictionnairique: (l'exemple des dictionnaires monolingues français

    Directory of Open Access Journals (Sweden)

    Gregor Perko

    2001-12-01

    Full Text Available Le present article se propose d'examiner le traitement des expressions idiomatiques dans un corpus de plusieurs dictionnaires monolingues du francais en un volume et de suggerer quelques ameliorations de ce traitement. L 'accent est mis tout particulierement sur les besoins specifiques d 'un utilisateur etranger. Avant d 'entamer une analyse lexicographique proprement dite, il nous semble indispensable de faire le point sur le statut linguistique des expressions idiomatiques et d 'en proposer une typologie.

  9. Temporal features of word-initial /s/+stop clusters in bilingual Mandarin-English children and monolingual English children and adults.

    Science.gov (United States)

    Yang, Jing

    2017-05-18

    This study investigated the durational features of English word-initial /s/+stop clusters produced by bilingual Mandarin (L1)-English (L2) children and monolingual English children and adults. The participants included two groups of five- to six-year-old bilingual children: low proficiency in the L2 (Bi-low) and high proficiency in the L2 (Bi-high), one group of age-matched English children, and one group of English adults. Each participant produced a list of English words containing /sp, st, sk/ at the word-initial position followed by /a, i, u/, respectively. The absolute durations of the clusters and cluster elements and the durational proportions of elements to the overall cluster were measured. The results revealed that Bi-high children behaved similarly to the English monolinguals whereas Bi-low children used a different strategy of temporal organization to coordinate the cluster components in comparison to the English monolinguals and Bi-high children. The influence of language experience and continuing development of temporal features in children were discussed.

  10. The English Monolingual Dictionary: Its Use among Second Year Students of University Technology of Malaysia, International Campus, Kuala Lumpur

    Directory of Open Access Journals (Sweden)

    Amerrudin Abd. Manan

    2011-07-01

    Full Text Available This research was conducted to seek information on English Monolingual Dictionary (EMD use among 2nd year students of Universiti Teknologi Malaysia, International Campus, Kuala Lumpur (UTMKL. Specifically, the researchers wish to discover, firstly the students’ habit and attitude in EMD use; secondly, to discover their knowledge with regard to the language learning resources available in EMD; thirdly, to discover their skill in using EMD, and finally, to discover whether there were formal instructions in EMD use when they were studying in their former schools and tertiary education. One hundred and ninety-six students took part in the survey by answering a questionnaire. The results of the study reveal that the respondents were poor users of EMD. They rarely consulted the EMD; their knowledge of the language learning resources in the EMD was limited; most perceived their EMD skill as average, and there was no instruction in EMD when they were at tertiary education and previously when they were at school.

  11. Is grammatical gender considered arbitrary or semantically motivated? Evidence from young adult monolinguals, second language learners, and early bilinguals.

    Science.gov (United States)

    Bassetti, Benedetta A L

    2014-05-01

    It is generally assumed that speakers of grammatical gender languages consider grammatical gender arbitrary, but this assumption has never been tested. Research shows that the grammatical gender of nouns can affect perceptions of the masculinity or femininity of the noun's referent in speakers of languages with masculine and feminine noun classes. However, bilingualism facilitates the development of lexical arbitrariness awareness, and could therefore affect awareness of grammatical gender arbitrariness. This study then compared three groups of young adult speakers of a grammatical gender language: monolinguals, early bilinguals, and instructed second language learners. Participants evaluated the gender assignments of 25 nouns of entities (animals, abstract concepts, natural kinds, and artefacts), and answered open and closed questions about grammatical gender. Participants considered grammatical gender as semantically motivated and mostly related gender assignments to perceived masculine or feminine connotations of referents. Knowledge of an additional grammatical gender language was linked to increased awareness of the arbitrariness of first language gender assignments in both early bilinguals and later instructed learners. It is argued that grammatical gender awareness deserves further investigation. Knowing more than one grammatical gender language can increase awareness of grammatical gender arbitrariness. Implications are discussed for language teaching and language reform.

  12. Perceptual assimilation of French and German vowels by American English monolinguals: Acoustic similarity does not predict perceptual similarity

    Science.gov (United States)

    Strange, Winifred; Levy, Erika; Lehnholf, Robert

    2001-05-01

    Previous research in our laboratory has demonstrated that the perceived similarity of vowels across languages is not always predictable from the closeness of their target formant values in F1/F2/F3 space. In this study, perceptual similarity was established using a task in which 11 American English (AE) monolinguals were presented multiple tokens of 9 French vowels and 14 North German vowels (in separate blocks) produced in citation-form /hVb(a)/ (bi)syllables by native speakers. They selected 1 of 11 AE vowel responses to which each non-native vowel token was most similar, and rated its goodness on a 9-point Likert scale. Of special interest was the perceptual assimilation of front rounded French [y, oe] and German [y, Y, o/, oe] vowels. Acoustically, all six French and German vowels are more similar to front unrounded AE vowels. However, all six vowels were perceived to be more similar to back rounded AE vowels (range across vowels = 55% to 100%), although relatively poor exemplars. There were differences across languages in how the same vowel was assimilated (e.g., French /y/ assimilated to front AE vowels 13%, German /y/, 0% French [oe] 3%, German [oe] 45%). There were also large individual differences in listeners assimilation patterns. [Work supported by NIDCD.

  13. Monolingual and Bilingual Recognition of Regular and Irregular English Verbs: Sensitivity to Form Similarity Varies with First Language Experience.

    Science.gov (United States)

    Basnight-Brown, Dana M; Chen, Lang; Hua, Shu; Kostić, Aleksandar; Feldman, Laurie Beth

    2007-07-01

    We used a cross-modal priming procedure to explore the processing of irregular and regular English verb forms in both monolinguals and bilinguals (Serbian-English, Chinese-English). Materials included irregular nested stem (drawn-DRAW), irregular change stem (ran-RUN), and regular past tense-present tense verb pairs that were either low (guided-GUIDE) or high (pushed-PUSH) in resonance, a measure of semantic richness. Overall, semantic richness of irregular verbs (nested and irregular change) and of regular verbs (high and low resonance) was matched. Native speakers of English revealed comparable facilitation across regularity and greater facilitation for nested than change stem irregulars. Like native speakers, Serbian, but not Chinese bilinguals matched for proficiency, showed facilitation due to form overlap between irregular past and present tense forms with a nested stem. Unlike native speakers, neither group showed reliable facilitation to stem change irregulars. Results demonstrate the influence of first language on inflectional processing in a second language.

  14. SQL parse and translation oriented to database performance%面向数据库性能的SQL语句解析与翻译

    Institute of Scientific and Technical Information of China (English)

    崔娜

    2016-01-01

    信息泄漏事件不断发生使得数据库安全的重要性不断提高。基于SQL解析能够实现SQL到自然语言的翻译,帮助非专业人员分析数据库的访问活动和识别风险。通过SQL词法和语法的EBNF描述构造了可以用于LL的规则输入,使用ANTLR工具生成了SQL词法和语法解析器。进一步,SQL词法和语法解析器实现了SQL语句到抽象语法树的转换。并通过解析抽象语法树,将SQL语句翻译成自然语言。最后,将SQL解析和翻译功能应用在数据库防火墙和安全审计系统中。%The continuous occurrence of information leakage incidents makes the importance of database security improve constantly. The SQL parse can realize the translation from SQL to natural language,and help the non⁃specialized people to analyze the database access activities and identify the risks. The rule input applied to LL was constructed by means of EBNF description of SQL morphology and syntax. The SQL morphology and parser are generated with ANTLR tool,which can realize the conver⁃sion from SQL statement to abstract syntax tree. The SQL statement can be translated into natural language by parsing the ab⁃stract syntax tree. Finally,SQL parse and translation function are applied to the database firewall and safety audit system.

  15. Parsing of genomic graffiti

    Energy Technology Data Exchange (ETDEWEB)

    Tibbetts, C.; Golden, J. III; Torgersen, D. [Vanderbilt Univ. School of Engineering, Nashville, TN (United States)

    1996-12-31

    A focal point of modern biology is investigation of wide varieties of phenomena at the level of molecular genetics. The nucleotide sequences of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) define the ultimate resolution of this reductionist approach to understand the determinants of heritable traits. The structure and function of genes, their composite genomic organization, and their regulated expression have been studied in systems representing every class of organism. Many human diseases or pathogenic syndromes can be directly attributed to inherited defects in either the regulated expression, or the quality of the products of specific genes. Genetic determinants of susceptibility to infectious agents or environmental hazards are amply documented. Mapping and sequencing of the DNA molecules encoding human genes have provided powerful technology for pharmaceutical bioengineering and forensic investigations. From an alternative perspective, we may anticipate that voluminous archives of singular DNA sequences alone will not suffice to define and understand the functional determinants of genome organization, allelic diversity and evolutionary plasticity of living organisms. New insights will accumulate pertaining to human evolutionary origins and relationships of human biology to models based on other mammals. Investigators of population genetics and epidemiology now exploit the technology of molecular genetics to more powerfully probe variation within the human gene pool at the level of DNA sequences. 40 refs., 7 figs., 2 tabs.

  16. Bilingualism and the increased attentional blink effect: evidence that the difference between bilinguals and monolinguals generalizes to different levels of second language proficiency.

    Science.gov (United States)

    Khare, Vatsala; Verma, Ark; Kar, Bhoomika; Srinivasan, Narayanan; Brysbaert, Marc

    2013-11-01

    The attentional blink task involves rapid serial presentation of visual stimuli, two of which the participants have to report. The usual finding is that participants are impaired at reporting the second target if it appears in close temporal proximity to the first target. Previous research has shown that the effect is stronger in bilinguals than monolinguals. We investigated whether the difference between monolinguals and proficient bilinguals can be extended to bilinguals of different proficiency levels. Therefore, we replicated the paradigm in a large sample of Hindi-English bilinguals with different proficiency levels of English, as measured with a validated vocabulary test. We additionally measured the participants' intelligence with the raven progressive matrices. We found that the size of the attentional blink effect correlates with the degree of second language proficiency and not with the degree of intelligence. This indicates that research on executive control functions can be done with bilinguals of different proficiency levels. Our results are also in line with recent findings showing that the attentional blink effect is not primarily due to limited processing resources.

  17. Early second language acquisition: a comparison of the linguistic output of a pre-school child acquiring English as a second language with that of a monolingual peer.

    Science.gov (United States)

    Letts, C A

    1991-08-01

    Two pre-school children were recorded at regular intervals over a 9-month period while playing freely together. One child was acquiring English as a second language, whilst the other was a monolingual English speaker. The sociolinguistic domain was such that the children were likely to be motivated to communicate with each other in English. A variety of quantitative measures were taken from the transcribed data, including measures of utterance type, length, type-token ratios, use of auxiliaries and morphology. The child for whom English was a second language was found to be well able to interact on equal terms with his partner, despite being somewhat less advanced in some aspects of English language development by the end of the sampling period. Whilst he appeared to be consolidating his language skills during this time, his monolingual partner appeared to be developing rapidly. It is hoped that normative longitudinal data of this kind will be of use in the accurate assessment of children from dual language backgrounds, who may be referred for speech and language therapy.

  18. 基于Hash散列的SCPI命令解析机制在LXI仪器上的实现%Implementation of SCPI Parsing Mechanism Based on Hash in LXI instrument

    Institute of Scientific and Technical Information of China (English)

    李智; 秦昌明; 张活

    2012-01-01

    在ARM & Linux嵌入式平台下,完成LXI仪器程控命令的发送.通过单向散列函数MPQ和Fibonacci函数构建分配较为均匀的散列表;采用链式的开散列结构,多值校验的冲突解决机制有效减小了冲突发生的可能;给出了SCPI命令解析中关键字节点和参数解析的实现方法;最后给出了一个LXI数字化仪命令解析的例子.该命令解析机制有较小的时间复杂度、高效的解析效率和较好的通用性.%On ARM & Linux embedded platform, sending remote control commands were implemented. MPQ and Fibonacci one-way hash functions were applied to construct hash tablet where elements are distributed uniformly. Open hashing structure based on linked list and multi-value calibration collision resolution policy can efficiently reduce collision possibility. The keyword nodes and parameters parsing methods were presented, including an example of LXI digitizer command parsing. This command parsing mechanism has small time complexity, high parsing efficiency and good versatility.

  19. Exploring problem solving strategies on multiple-choice science items: Comparing native Spanish-speaking English Language Learners and mainstream monolinguals

    Science.gov (United States)

    Kachchaf, Rachel Rae

    The purpose of this study was to compare how English language learners (ELLs) and monolingual English speakers solved multiple-choice items administered with and without a new form of testing accommodation---vignette illustration (VI). By incorporating theories from second language acquisition, bilingualism, and sociolinguistics, this study was able to gain more accurate and comprehensive input into the ways students interacted with items. This mixed methods study used verbal protocols to elicit the thinking processes of thirty-six native Spanish-speaking English language learners (ELLs), and 36 native-English speaking non-ELLs when solving multiple-choice science items. Results from both qualitative and quantitative analyses show that ELLs used a wider variety of actions oriented to making sense of the items than non-ELLs. In contrast, non-ELLs used more problem solving strategies than ELLs. There were no statistically significant differences in student performance based on the interaction of presence of illustration and linguistic status or the main effect of presence of illustration. However, there were significant differences based on the main effect of linguistic status. An interaction between the characteristics of the students, the items, and the illustrations indicates considerable heterogeneity in the ways in which students from both linguistic groups think about and respond to science test items. The results of this study speak to the need for more research involving ELLs in the process of test development to create test items that do not require ELLs to carry out significantly more actions to make sense of the item than monolingual students.

  20. An Empirical Evaluation of BFS, and DFS Search Algorithms on J2ME Platform, and SVG Tiny Parsing on J2ME Platform Using SAX, StAX, and DOM Parsers

    Directory of Open Access Journals (Sweden)

    Venera Sengirova

    2012-01-01

    Full Text Available SVG (Scalable Vector Graphics Tiny, an XML-based data representation format was used in our Global Train Route Planner J2ME application to render and manipulate train network  images. The SVG Tiny format enables the application to be adaptable with any train network map. We compared three parsing models namely DOM (Document Object Model, SAX (Simple API for XML, and StAX (Streaming API for XML which were used to visualize the images on mobile phone. We present here the result of the runtime performances, and memory footprints of those parsing models. This is a significant study because handheld devices like mobile phones require seamless interactivity (i.e. high performance with users and an efficient parsing mechanism with less memory footprints. We also empirically investigated two route searching algorithms - graph and matrix based implementation of DFS (Depth First Search, and matrix based BFS (Breadth First Search – for performance and memory footprints on a J2ME mobile device emulator. We concluded that DOM parser and DFS based on graph implementation are of better performance than the others.

  1. Local and Global Parsing with Functional (FX-bar Theory and SCD Linguistic Strategy (I. Part I. FX-bar Schemes and Theory. Local and Global FX-bar Projections

    Directory of Open Access Journals (Sweden)

    Neculai Curteanu

    2006-05-01

    Full Text Available This paper surveys latest developments of SCD (Segmentation-Cohesion-Dependency linguistic strategy, with its basic components: FX-bar theory with local and (two extensions to global structures, the hierarchy graph of SCD marker classes, and improved versions of SCD algorithms for segmentation and parsing of local and global text structures. Briefly, Part I brings theoretical support (predicational feature and semantic diathesis for handing down the predication from syntactic to lexical level, introduces the new local / global FX-bar schemes (graphs for clause-level and discourse-level, the (global extension of dependency graph for SCD marker classes, the problem of (direct and inverse local FX-bar projection of the verbal group (verbal complex, and the FX-bar global projections, with the special case of sub-clausal discourse segments. Part II discusses the implications of the functional generativity concept for local and global markers, with a novel understanding on the taxonomy of text parsing algorithms, specifies the SCD marker classes, both at clause and discourse level, and presents (variants of SCD local and global segmentation / parsing algorithms, along with their latest running results.

  2. Parsing multiple processes of high temperature impacts on corn/soybean yield using a newly developed CLM-APSIM modeling framework

    Science.gov (United States)

    Peng, B.; Guan, K.; Chen, M.

    2016-12-01

    Future agricultural production faces a grand challenge of higher temperature under climate change. There are multiple physiological or metabolic processes of how high temperature affects crop yield. Specifically, we consider the following major processes: (1) direct temperature effects on photosynthesis and respiration; (2) speed-up growth rate and the shortening of growing season; (3) heat stress during reproductive stage (flowering and grain-filling); (4) high-temperature induced increase of atmospheric water demands. In this work, we use a newly developed modeling framework (CLM-APSIM) to simulate the corn and soybean growth and explicitly parse the above four processes. By combining the strength of CLM in modeling surface biophysical (e.g., hydrology and energy balance) and biogeochemical (e.g., photosynthesis and carbon-nitrogen interactions), as well as that of APSIM in modeling crop phenology and reproductive stress, the newly developed CLM-APSIM modeling framework enables us to diagnose the impacts of high temperature stress through different processes at various crop phenology stages. Ground measurements from the advanced SoyFACE facility at University of Illinois is used here to calibrate, validate, and improve the CLM-APSIM modeling framework at the site level. We finally use the CLM-APSIM modeling framework to project crop yield for the whole US Corn Belt under different climate scenarios.

  3. 中文语义依存关系分析的统计模型%A Statistical Model for Parsing Semantic Dependency Relations in a Chinese Sentence

    Institute of Scientific and Technical Information of China (English)

    李明琴; 李涓子; 王作英; 陆大(纟金)

    2004-01-01

    该文提出了一个统计语义分析器,它能够发现中文句子中的语义依存关系.这些语义依存关系可以用于表示句子的意义和结构.语义分析器在1百万词的标有语义依存关系的语料库(语义依存网络语料库,SDN)上训练并测试,文中设计、实现了多个实验以分析语义分析器的性能.实验结果表明,分析器在非限定领域中表现出了较好的性能,分析正确率与中文句法分析器基本相当.%This paper presents a statistical semantic parser, which could discover the semantic dependency relations in a Chinese sentence. By these relations the meaning and structure of sentence could be represented. The parser was trained and evaluated on a 1M-word-scale corpus annotated with semantic dependency, Semantic Dependency Net (SDN). Various experiments were carried out to analyze the performance of the parser, and good performance was shown in parsing domain-unrestricted text. The accuracy reached as high level as the Chinese syntactic parser.

  4. How age of bilingual exposure can change the neural systems for language in the developing brain: a functional near infrared spectroscopy investigation of syntactic processing in monolingual and bilingual children.

    Science.gov (United States)

    Jasinska, K K; Petitto, L A

    2013-10-01

    Is the developing bilingual brain fundamentally similar to the monolingual brain (e.g., neural resources supporting language and cognition)? Or, does early-life bilingual language experience change the brain? If so, how does age of first bilingual exposure impact neural activation for language? We compared how typically-developing bilingual and monolingual children (ages 7-10) and adults recruit brain areas during sentence processing using functional Near Infrared Spectroscopy (fNIRS) brain imaging. Bilingual participants included early-exposed (bilingual exposure from birth) and later-exposed individuals (bilingual exposure between ages 4-6). Both bilingual children and adults showed greater neural activation in left-hemisphere classic language areas, and additionally, right-hemisphere homologues (Right Superior Temporal Gyrus, Right Inferior Frontal Gyrus). However, important differences were observed between early-exposed and later-exposed bilinguals in their earliest-exposed language. Early bilingual exposure imparts fundamental changes to classic language areas instead of alterations to brain regions governing higher cognitive executive functions. However, age of first bilingual exposure does matter. Later-exposed bilinguals showed greater recruitment of the prefrontal cortex relative to early-exposed bilinguals and monolinguals. The findings provide fascinating insight into the neural resources that facilitate bilingual language use and are discussed in terms of how early-life language experiences can modify the neural systems underlying human language processing.

  5. Specificity data for the b Test, Dot Counting Test, Rey-15 Item Plus Recognition, and Rey Word Recognition Test in monolingual Spanish-speakers.

    Science.gov (United States)

    Robles, Luz; López, Enrique; Salazar, Xavier; Boone, Kyle B; Glaser, Debra F

    2015-01-01

    The current study provides specificity data on a large sample (n = 115) of young to middle-aged, male, monolingual Spanish speakers of lower educational level and low acculturation to mainstream US culture for four neurocognitive performance validity tests (PVTs): the Dot Counting, the b Test, Rey Word Recognition, and Rey 15-Item Plus Recognition. Individuals with 0 to 6 years of education performed more poorly than did participants with 7 to 10 years of education on several Rey 15-Item scores (combination equation, recall intrusion errors, and recognition false positives), Rey Word Recognition total correct, and E-score and omission errors on the b Test, but no effect of educational level was observed for Dot Counting Test scores. Cutoff scores are provided that maintain approximately 90% specificity for the education subgroups separately. Some of these cutoffs match, or are even more stringent than, those recommended for use in US test takers who are primarily Caucasian, are tested in English, and have a higher educational level (i.e., Rey Word Recognition correct false-positive errors; Rey 15-Item recall intrusions and recognition false-positive errors; b Test total time; and Dot Counting E-score and grouped dot counting time). Thus, performance on these PVT variables in particular appears relatively robust to cultural/language/educational factors.

  6. An astrometry parsing to the data of pulsar timing%脉冲星计时数据的天体测量解析

    Institute of Scientific and Technical Information of China (English)

    赵铭; 黄天衣

    2009-01-01

    已有的研究表明,通过对毫秒脉冲星脉冲到达观测者的时刻(time of arrival,TOA)的记录和分析,实现航天器的自主定位是可行的.我们对TOA所合成分作了解析,导出和解释了TOA与观测者质心位置间关系的基本方程,并与其他一些作者的结果进行比较和讨论.作者认为,TOA和太阳系质心(SSB)处的脉冲到达时刻无关,和SSB的日心坐标无关,也和SSB处的引力时延无关.因此,不应如Sheikh所做的那样,试图在观测者和SSB之间计算较差到达时刻和较差引力时延.%Some available studies have indicated that it is feasible for a spacecraft to self-position based on the data of Time Of Arrival (TOA) of pulses from millisecond pulsars. In this paper, the components included in TOA are parsed, and the essential expression relating to the TOA and the barycentral position of the spacecraft is educed and compared with those of other authors. We conclude that observed TOA are irrelative to the pulses arrival time at Solar System Barycentre (SSB), to the heliocentric position of SSB, and to the gravitational delay at SSB. Therefore, it is not supposed to calculate the differential TOA as well as differential gravitational delay between the observer and SSB, like as that given by Sheikh.

  7. Design and Implementation of a C++ Software Package to scan for and parse Tsunami Messages issued by the Tsunami Warning Centers for Operational use at the Pacific Tsunami Warning Center

    Science.gov (United States)

    Sardina, V.

    2012-12-01

    The US Tsunami Warning Centers (TWCs) have traditionally generated their tsunami message products primarily as blocks of text then tagged with headers that identify them on each particular communications' (comms) circuit. Each warning center has a primary area of responsibility (AOR) within which it has an authoritative role regarding parameters such as earthquake location and magnitude. This means that when a major tsunamigenic event occurs the other warning centers need to quickly access the earthquake parameters issued by the authoritative warning center before issuing their message products intended for customers in their own AOR. Thus, within the operational context of the TWCs the scientists on duty have an operational need to access the information contained in the message products issued by other warning centers as quickly as possible. As a solution to this operational problem we designed and implemented a C++ software package that allows scanning for and parsing the entire suite of tsunami message products issued by the Pacific Tsunami Warning Center (PTWC), the West Coast and Alaska Tsunami Warning Center (WCATWC), and the Japan Meteorological Agency (JMA). The scanning and parsing classes composing the resulting C++ software package allow parsing both non-official message products(observatory messages) routinely issued by the TWCs, and all official tsunami message products such as tsunami advisories, watches, and warnings. This software package currently allows scientists on duty at the PTWC to automatically retrieve the parameters contained in tsunami messages issued by WCATWC, JMA, or PTWC itself. Extension of the capabilities of the classes composing the software package would make it possible to generate XML and CAP compliant versions of the TWCs' message products until new messaging software natively adds this capabilities. Customers who receive the TWCs' tsunami message products could also use the package to automatically retrieve information from

  8. An Integrated Semasiological and Onomasiological Presentation of Semantic Information in General Monolingual Dictionaries as Proposed in H.E. Wiegand's Semantics and Lexicography

    Directory of Open Access Journals (Sweden)

    Phillip Louw

    2011-10-01

    Full Text Available

    Abstract: Herbert Ernst Wiegand is a very important figure in international metalexicography. A large part of his research has up to now been unavailable to the majority of the English-speaking world, because it has mainly been published in German. A new book Semantics and Lexicography seeks to break through this obscurity by providing English translations of a selection of articles spanning thirty years (from 1976 to 1996, which trace the development of Wiegand's views on semantic information. This book offers a valuable insight into the theoretical and corresponding terminological development that has already had such a remarkable impact on the "practical science" metalexicography. This article focuses on Wiegand's theories on the integration of the semasiological and onomasiological presentation of semantic information in the microstructures of general monolingual dictionaries. The theories are explicated and illustrated by examples from two Afrikaans general monolingual dictionaries and evaluated in order to establish their relevance. The conclusion is reached that the semasiological presentation of meaning is most appropriately located in the item giving the meaning paraphrase, which should form part of the semantic comment in an integrated microstructure. In the semantic comment, this item must be followed by dearly distinguished items giving onomasiological information, especially about synonymy.

    Keywords: DEFINITION, FRAME, HYPONYM, ITEM GIVING THE MEANING PARAPHRASE, LEXICAL PARAPHRASE, LEXICOGRAPHIC PARAPHRASE, METALEXICOGRAPHY, NEAR-SYNONYM, OBJECT-CONSTITUTING KNOWLEDGE; ONOMASIOLOGICAL, SEMANTIC RELATION, SEMASIOLOGICAL, SYNONYM, SYNONYM DEFINITION.

    Opsomming: In Ge'integreerde semasiologiese en onomasiologiese aanbod .van semantiese inligting in algemeen eentalige woordeboeke soos voorgestelin H.E. Wiegand se Semantics and Lexicography. Herbert Ernst Wiegand is 'n baiebelangrike figuur in die intemasionale

  9. The convergence of personality disorder diagnoses across different methods among monolingual (Spanish-speaking only) Hispanic patients in substance use treatment.

    Science.gov (United States)

    Samuel, Douglas B; Añez, Luis M; Paris, Manuel; Grilo, Carlos M

    2014-04-01

    Methods for diagnosing personality disorders (PDs) within clinical settings typically diverge from those used in treatment research. Treatment groups in research studies are routinely diagnosed using semistructured interviews or self-report questionnaires, yet these methods show poor agreement with clinical diagnoses recorded in medical charts or assigned by treating clinicians, reducing the potential for evidence-based practice. Furthermore, existing research has been limited by focusing on primarily White and English-speaking participants. Our study extended prior research by comparing 4 independent methods of PD diagnosis, including self-report questionnaire, semistructured interview, chart diagnoses, and ratings by treating clinicians, within a clinical series of 130 monolingual (Spanish only) Hispanic persons (69% male; M age 37.4), in treatment for substance use. The authors examined the convergence of the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; DSM-IV) PD diagnoses across these methods. PD diagnoses appeared infrequently within medical charts but were diagnosed at higher levels by independent treating clinicians, self-report questionnaires, and semistructured interviews. Nonetheless, diagnostic concordance between clinical diagnoses and the other methods were poor (κ Hispanic persons are comparable to other groups allaying concerns about cross-cultural application of PD diagnoses. Additionally, the results of this study echo previous research in suggesting that clinicians' PD diagnoses overlap little with self-report questionnaires or semistructured diagnostic interviews and suggest that PDs are underdiagnosed using standard diagnostic approaches. Implications for the clinical application of empirically supported research are discussed. PsycINFO Database Record (c) 2014 APA, all rights reserved

  10. The rise of English as the global lingua franca. Is the world heading towards greater monolingualism or new forms of plurilingualism?

    Directory of Open Access Journals (Sweden)

    Thomas Wulstan Christiansen

    2016-01-01

    Full Text Available English has become the most influential language for international discourse (Weber 1997, Graddol 2010 and it is tempting to foresee a largely monolingual future at the international level, where other languages become irrelevant. Such a simplistic view sees the adoption of English as something universal and uniform with little room for variation, local identity, or other lingua francas. Data shows that other lingua francas are not inevitably in decline. Diverse languages – e.g. Chinese, Spanish, Arabic, Hindi, French – continue to be important regionally or in certain discourse contexts (Weber 1997, Ostler 2010, Ronen et al. 2014 and on the internet. In this paper, we look at recent data from a variety of recent sources (Ronen et al. 2014,Olivié et al. 2015, in an attempt to examine the situation regarding languages and their influences in the world today. In particular, we will attempt to take into account the fact that much language distribution is today no longer tied in with territorial dimensions. New media such as the internet, as well as mass migration between countries, have made it less easy to identify specific langugaes with precise geographical areas. Furthermore although the world is increasingly globalised, significant regional divisions still exist in the use of media (especially in the case of China making it difficult at present to make direct comparisons about language use. In this complex scenario, it is also apparent that as English as a Lingua Franca (ELF variations emerge and gain in influence (see Seidlhofer 2011, the identity of English will change and come to become itself a reflection of a plurilingual reality in which speakers typically have at their disposal a repertoire of different languages

  11. Learning for Semantic Parsing Using Statistical Syntactic Parsing Techniques

    Science.gov (United States)

    2010-05-01

    Vasin Punyakanok, Dan Roth and Wen-tau Yih (2005). Generalized inference with multiple semantic role labeling systems. In Proceedings of the Ninth...Uncertainty in Artificial Intelligence (UAI- 2005). Edinburgh, Scotland . Luke S. Zettlemoyer and Michael Collins (2007). Online learning of relaxed

  12. Blog Sentiment Orientation Analysis Based on Dependency Parsing%基于依存句法的博文情感倾向分析研究

    Institute of Scientific and Technical Information of China (English)

    冯时; 付永陈; 阳锋; 王大玲; 张一飞

    2012-01-01

    Nowadays, blogs, which contain rich opinion and emotion information, have become an important platform for exchanging sentiments among netizens on the Web. Blog search provides a convenient way for these information exchanges. In many cases, users pay more attention to blogger's opinions and sentiments about an event when searching the blogosphere, but most existing blog search engines return results based only on topics without considering sentiment orientations. In this paper, an algorithm called SOAD (sentiment orientation analysis based on syntactic dependency) is proposed for analyzing blogs' sentiment orientation based on dependency parsing. A Chinese blog search engine prototype system is built based on the proposed algorithm, which reprocesses blog search results for sentiment analysis. Experiments show that, SOAD algorithm has more advantages, and the prototype system implements the purpose of this paper: the blog search results are returned according to blogger's sentiment orientation.%博客作为一种用户发表其观点和看法的载体己成为Web上一个重要的情感抒发与交流平台,博文搜索为这种交流提供了方便快捷的途径.很多时候,用户进行博文搜索时更关注作者对事件所持的观点或情感,但目前的博文搜索返回结果大多基于主题而非情感倾向.基于此提出一种基于句法依存分析技术的算法SOAD(sentiment orientation analysis based on syntactic dependency)对博文搜索结果进行情感倾向性分析.基于SOAD算法,构建了一个中文博文搜索原型系统,对博文搜索结果进行再处理.实验证明,一方面,SOAD算法在分析博文情感上具有更大的优势;另一方面,建立的原型系统实现了依据情感倾向返回搜索结果的目标.

  13. Parallel Processing of Syntax Parsing Algorithm for UPD Grammar Based on One-way Cell Automata%基于单向点格自动机的UPG文法识别并行算法

    Institute of Scientific and Technical Information of China (English)

    李玉萍

    2016-01-01

    UPG文法是一种特殊的生成文法,在分析的过程中可以没有回溯。该文法能够更好地描述自然语言中特殊的语法结构。单向点格自动机是进行语言并行识别的模型。通过对该文法和点格自动机深入的分析,提出了一种在并行环境下基于点格自动机的无回溯的语法分析和识别算法。文章通过实例详细描述了算法并行处理的过程,验证算法的正确性和可行性。%A uniquely parsable grammar(UPD)is a special kind of generative grammar where parsing can be performed without backtracking. UPD grammars have greater generative power than the context-free grammars. This family of grammars and one-way cell automata is deeply analyzed. A recognition and parsing algorithm under Paral-lel environment is presented. The process of parallel processing is described by instance and the validity of the algo-rithm is verified.

  14. Parsing statistical machine translation output

    NARCIS (Netherlands)

    Carter, S.; Monz, C.; Vetulani, Z.

    2009-01-01

    Despite increasing research into the use of syntax during statistical machine translation, the incorporation of syntax into language models has seen limited success. We present a study of the discriminative abilities of generative syntax-based language models, over and above standard n-gram models,

  15. Parsing with Principles and Probabilities

    CERN Document Server

    Fordham, A; Fordham, Andrew; Crocker, Matthew

    1994-01-01

    This paper is an attempt to bring together two approaches to language analysis. The possible use of probabilistic information in principle-based grammars and parsers is considered, including discussion on some theoretical and computational problems that arise. Finally a partial implementation of these ideas is presented, along with some preliminary results from testing on a small set of sentences.

  16. Consciência fonológica: o desempenho de meninos e meninas bilíngues e monolíngues Phonological awareness: bilingual and monolingual boys and girls performance

    Directory of Open Access Journals (Sweden)

    Sabrina Schützenhofer Lasch

    2010-04-01

    Full Text Available OBJETIVO: investigar o desempenho de meninas e meninos, monolíngues e bilíngues, em habilidades de consciência fonológica. MÉTODOS: questionário e triagem auditiva para selecionar a amostra, composta por 89 estudantes, faixa etária entre 4:1 a 8:11 anos de idade, 47 meninas e 42 meninos, dos quais 47 sujeitos eram bilíngues (português e alemão e 42 monolíngues (português. A amostra selecionada foi submetida à avaliação das habilidades em consciência fonológica, com aplicação do Protocolo de Consciência Fonológica (Cielo, 2001 que propõe tarefas de segmentação de frases em palavras; realismo nominal; detecção de rimas; síntese silábica; segmentação silábica; detecção de sílabas; reversão silábica; exclusão fonêmica; detecção de fonemas; síntese fonêmica; segmentação fonêmica e reversão fonêmica. Para uma análise quantitativa dos dados, realizou-se o teste estatístico de Kruskal-Wallis com p=0,05 quando se comparou o desempenho de meninos e meninas monolíngues, bem como o desempenho de meninos e meninas bilíngues por tarefa de CF. RESULTADOS: quando analisados os sujeitos bilíngues, houve significância estatística na detecção de rima com trissílabos (p=0,0087 e na síntese de quatro fonemas (p=0,0219, com vantagem das meninas; já na análise que comparou meninos e meninas monolíngues, os resultados foram mais equilibrados. CONCLUSÕES: apesar de praticamente não existirem resultados estatisticamente significantes na comparação entre meninos e meninas bilíngues e monolíngues, observou-se superioridade feminina na maioria das tarefas de consciência fonológica.PURPOSE: to investigate monolingual and bilingual girls and boys performance, in the skills of phonological awareness. METHODS: questionnaire and hearing screening to select the sample, consisting of 89 students, aged 4:1 to 8:11-years old, 47 girls and 42 boys, of which 47 subjects were bilingual (Portuguese and German and 42

  17. Word-level Alignment for Multilingual Resource Acquisition

    Science.gov (United States)

    2002-04-01

    SUBTITLE Word-level Alignment for Multilingual Resource Acquisition 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S...unclassified Standard Form 298 (Rev. 8-98) Prescribed by ANSI Std Z39-18 Word-level Alignment for Multilingual Resource Acquisition Adam Lopez...parses to adhere to the constraints of a given monolingual parsing model. If we assume context-free grammars, then each parse must be context-free

  18. A Post-Monolingual Education

    Science.gov (United States)

    Soto, Lourdes Diaz; Kharem, Haroon

    2006-01-01

    In this article, the authors draw attention to the need for ethnolinguistic democracy at a time when linguistic and cultural issues are significantly impacting how schools, educators, students, and curriculum are perceived. The authors delineate the manifold acts of imperialism associated with the colonizing of young minds and bodies as culture…

  19. Language Planning and Monolingual Dictionaries:

    African Journals Online (AJOL)

    R.B. Ruthven

    General dictionaries are the standard dictionaries for particular languages, assumed to be .... elaborating the various features of the language and the implementation of these plans ... also as repositories of a particular people's culture. Béjoint ...

  20. La mirada de Watson, Parse y Benner para el análisis complejo y la buena práctica The glance of Watson, Pair and Benner for the complex analysis and the good practice

    Directory of Open Access Journals (Sweden)

    Sagrario Acebedo-Urdiales

    2007-06-01

    Full Text Available La necesidad de encontrar el significado y orden del quehacer enfermero por encima de especialidades, culturas, tareas, funciones o competencias, hace necesario llevar a la práctica teorías y conceptos de análisis que se puedan insertar en cada situación, como fundamento que guía la buena práctica enfermera. Los modelos y filosofías enfermeras nos dan elementos de reflexión, nos siembran la duda respecto a la práctica, nos dan elementos de investigación y cuando los integramos o nos reconocemos en ellos, además de flexibilizar la interpretación y el cuidado persona-situación, colocan a la enfermería dentro de su marco más maduro consistente con el modelo de Nithingale actualizado. Este trabajo tiene como objetivo plantear lo que para nosotras son los elementos básicos de las filosofías y teorías de Watson, Parse y Benner, que nos permiten el análisis complejo de las situaciones de cuidados y la comprensión del juicio clínico, que emerge de la práctica como acontecimiento real. El paradigma de la complejidad nos lleva a prácticas responsables, a estar no en objetivos, sino en procesos, no en partes o en todos sino en individuos que son a la vez sujeto-objeto.The need to find the meaning of nursing activity independently of specialties, cultures, tasks, functions or competences, leads us to the usage of theories and concepts of analysis than can be applied in each situation, as a guide for the right nursing activity. Nursing philosophies and models provide us elements of reflection, creating doubts in relation to the practice, and once they are assumed, we recognize ourselves on them, helping us to the interpretation of the person-situation caring, carrying nursing to its matures side, validating Nigthingale's model. This work has the aim of implanting the basic elements of Watson, Parse and Benner's theories in order to analyze situations of caring and understand the clinical judgment emerging from the practice. The

  1. On failure of the pruning technique in "error repair in shift-reduce parsers"

    NARCIS (Netherlands)

    Bertsch, E; Nederhof, MJ

    1999-01-01

    A previous article presented a technique to compute the least-cost error repair by incrementally generating configurations that result from inserting and deleting tokens in a syntactically incorrect input. An additional mechanism to improve the run-time efficiency of this algorithm by pruning some o

  2. Parsing Chinese-Russian Military Exercises

    Science.gov (United States)

    2015-04-01

    Gulotta, Charlotte Karrlsson- Willis , Man Ching Lam, Dylan Royce, Vipin Saroha, and Daniel Urchick for their research or editorial assistance with...advanced SS-N- 12 anti-ship missiles armed with nuclear warheads in a configuration designed primarily to destroy U.S. air- craft carriers .112 The...missiles against air and ground targets, including U.S. aircraft carriers .155 The sales motive was also evident in the Russian decision to leave the

  3. Parsing Flowcharts and Series-Parallel Graphs

    Science.gov (United States)

    1978-11-01

    still in progress. Luis Trabb Pardo ( hermano .) who listened patiently to many hours of half-baked ideas -- without retaliating -- and remained a friend...only if a = b or there exists a sequence of elements of S, aa 2 ... k such that a = a, ak =b and ai - ai+1 for I < i < k . 15 h!I II § 1 An element, a...there is a bound on the length of the longest sequence al, a2 ,...,ak such that a, = a and ai - ai+1 for 1 < i < k . A replacement system (S,-) is

  4. Modeling Syntax for Parsing and Translation

    Science.gov (United States)

    2003-12-15

    EBm CO Cs Ss*b Ost Ss*d Pv MVa IDSs D*u BsDs Ost Ss Ds A Ss Mp NSaNIaxOptE A AN Sp Op NIax MVp MVp Jp F*J F*J NIax Jp F*J F*J G CO Sp*i Os MVp Ds Js...thesis, we can see a theme running throughout: incorporating syntax into generative models of human language, which is just a special case of a more...general theme : combining knowledge with statistical models. In this thesis we incorporated linguistic knowledge into statistical models of language

  5. Parsing polarization squeezing into Fock layers

    DEFF Research Database (Denmark)

    Mueller, Christian R.; Madsen, Lars Skovgaard; Klimov, Andrei B.

    2016-01-01

    We investigate polarization squeezing in squeezed coherent states with varying coherent amplitudes. In contrast to the traditional characterization based on the full Stokes parameters, we experimentally determine the Stokes vector of each excitation subspace separately. Only for states with a fix...

  6. ParseTalk about Textual Ellipsis

    CERN Document Server

    Strube, M; Strube, Michael; Hahn, Udo

    1995-01-01

    A hybrid methodology for the resolution of text-level ellipsis is presented in this paper. It incorporates conceptual proximity criteria applied to ontologically well-engineered domain knowledge bases and an approach to centering based on functional topic/comment patterns. We state text grammatical predicates for ellipsis and then turn to the procedural aspects of their evaluation within the framework of an actor-based implementation of a lexically distributed parser. From no-reply@xxx.lanl.gov Fri Nov 5 06:05 MET 1999 Received: from newmint.cern.ch (newmint.cern.ch [137.138.26.94]) by sundh98.cern.ch (8.8.5/8.8.5) with ESMTP id GAA25044 for ; Fri, 5 Nov 1999 06:05:47 +0100 (MET) Received: from uuu.lanl.gov (uuu.lanl.gov [204.121.6.59]) by newmint.cern.ch (8.9.3/8.9.3) with ESMTP id GAA15336; Fri, 5 Nov 1999 06:05:43 +0100 (MET) Received: from xxx.lanl.gov (xxx.lanl.gov [204.121.6.57]) by uuu.lanl.gov (x.x.x/x.x.x) with ESMTP id WAA28467; Thu, 4 Nov 1999 22:05:03 -0700 (MST) Received: (from e-prints@localhost...

  7. Parsing abnormal grain growth in specialty aluminas

    Science.gov (United States)

    Lawrence, Abigail Kremer

    Grain growth in alumina is strongly affected by the impurities present in the material. Certain impurity elements are known to have characteristic effects on abnormal grain growth in alumina. Specialty alumina powders contain multiple impurity species including MgO, CaO, SiO2, and Na 2O. In this work, sintered samples made from alumina powders containing various amounts of the impurities in question were characterized by their grain size and aspect ratio distributions. Multiple quantitative methods were used to characterize and classify samples with varying microstructures. The grain size distributions were used to partition the grain size population into subpopulations depending on the observed deviation from normal behavior. Using both grain size and aspect ratio a new visual representation for a microstructure was introduced called a morphology frequency map that gives a fingerprint for the material. The number of subpopulations within a sample and the shape of the distribution on the morphology map provided the basis for a classification scheme for different types of microstructures. Also using the two parameters a series of five metrics were calculated that describe the character of the abnormal grains in the sample, these were called abnormal character values. The abnormal character values describe the fraction of grains that are considered abnormal, the average magnitude of abnormality (including both grain size and aspect ratio), the average size, and variance in size. The final metric is the correlation between grain size and aspect ratio for the entire population of grains. The abnormal character values give a sense of how different from "normal" the sample is, given the assumption that a normal sample has a lognormal distribution of grain size and a Gaussian distribution of aspect ratios. In the second part of the work the quantified measures of abnormality were correlated with processing parameters such as composition and heat treatment conditions. A multivariate statistical tool called canonical correlation analysis was adopted to seek out relationships between a set of input variables and the abnormal character values. The input variables include the MgO, CaO, Na 2O, and SiO2 contents, the ratio of MgO:(CaO+SiO2), and the annealing time and temperature. The analysis was applied to 33 different samples and showed that the composition ratio and MgO content were the strongest processing variables. These variables are most closely related to the correlation between grain size and aspect ratio, the average magnitude of abnormality, and the variance in grain size. The physical implications of these relationships are explored for a number of samples with different abnormal grain growth behaviors. Several of the samples contained a beta"-alumina phase that is shown to have a dampening effect on abnormal grain growth. TEM investigation provides evidence that there is a grain boundary complexion with a different composition and structure than the second phase. A series of samples are compared after annealing for different times and are shown to have very different behaviors as a result of the second phase competing with complexions for control over the microstructure.

  8. Subdomain sensitive statistical parsing using raw corpora

    NARCIS (Netherlands)

    Plank, B.; Sima'an, K.

    2008-01-01

    Modern statistical parsers are trained on large annotated corpora (treebanks). These treebanks usually consist of sentences addressing different subdomains (e.g. sports, politics, music), which implies that the statistics gathered by current statistical parsers are mixtures of subdomains of language

  9. Cyberchondria: Parsing Health Anxiety From Online Behavior.

    Science.gov (United States)

    Doherty-Torstrick, Emily R; Walton, Kate E; Fallon, Brian A

    2016-01-01

    Individuals with questions about their health often turn to the Internet for information about their symptoms, but the degree to which health anxiety is related to online checking, and clinical variables, remains unclear. The clinical profiles of highly anxious Internet checkers, and the relationship to checking behavior itself, have not previously been reported. In this article, we test the hypothesis, derived from cognitive-behavioral models, that individuals with higher levels of illness anxiety would recall having experienced worsening anxiety after reassurance-seeking on the Internet. Data from 731 volunteers who endorsed engaging in online symptom-searching were collected using an online questionnaire. Severity of health anxiety was assessed with the Whiteley Index, functional impairment with the Sheehan Disability Scale, and distress recall during and after searching with a modified version of the Clinician׳s Global Impairment scale. Multiple regression analyses were conducted to determine variables contributing to distress during and after Internet checking. Severity of illness anxiety on the Whiteley Index was the strongest predictor of increase in anxiety associated with, and consequent to, online symptom-searching. Individuals with high illness anxiety recalled feeling worse after online symptom-checking, whereas those with low illness anxiety recalled relief. Longer-duration online health-related use was associated with increased functional impairment, less education, and increased anxiety during and after checking. Because individuals with moderate-high levels of illness anxiety recall experiencing more anxiety during and after searching, such searching may be detrimental to their health. If replicated in controlled experimental settings, this would suggest that individuals with illness anxiety should be advised to avoid using the Internet for illness-related information. Copyright © 2016 The Academy of Psychosomatic Medicine. Published by Elsevier Inc. All rights reserved.

  10. Automated Program Recognition by Graph Parsing

    Science.gov (United States)

    1992-07-01

    clich6 and even if we did not need to deal with fan-in or fan-out, we can still encounter exponential behavior. Readers familiar with Brotsky’s algorithm...defun Read-Segment (Segment Offset) (Entry tarot (Segment-Date Segment) Index))) (unless (equal (Segment-Type Segment) (if (and (not (equal Entry...Statement) This allows the definition of handlers. This should be part (symbolp Statement)) of a more general reader . 262 (defun Define-Handler (treat

  11. Parsing with Structure-Preserving Categorial Grammars

    NARCIS (Netherlands)

    Capelletti, M.

    2007-01-01

    This book is a study of the logical and computational properties of structure-preserving categorial grammars. The first part of the book presents chart-parsers for non-associative categorial grammars in the style of Ajdukiewicz and Bar-Hillel. These are proposed in Chapter 3 as deductive parsers, th

  12. Improvement Comparison of Different Lattice-based Discriminative Training Methods in Chinese-monolingual and Chinese-English-bilingual Speech Recognition%各种不同的基于词格的鉴别性训练方法在中文单语以及中英双语语音识别系统中的性能改善调研及比较

    Institute of Scientific and Technical Information of China (English)

    QIAN Yan-Min; SHAN Yu-Xiang; WANG Lin-Fang; LIU Jia

    2012-01-01

    Discriminative training approaches such as minimum phone error (MPE),feature minimum phone error (fMPE) and boosted maximum mutual information (BMMI) have brought remarkable improvement to the speech community in recent years,however,much work still remains to be done.This paper investigates the performances of three lattice-based discriminative training methods in detail,and does a comparison of different I-smoothing methods to obtain more robust models in the Chinese-monolingual situation.The complementary properties of the different discriminative training methods are explored to perform a system combination by recognizer output voting error reduction (ROVER).Although discriminative training is normally used in monolingual systems,this paper systematically investigates its use for bilingual speech recognition,including MPE,fMPE,and BMMI.A new method is proposed to generate significantly better lattices for training the bilingual model,and complementary discriminative training models are also explored to get the best ROVER performance in the bilingual situation.Experimental results show that all forms of discriminative training can reduce the word error rate in both monolingual and bilingual systems,and that combining complementary discriminative training methods can improve the performance significantly.

  13. Using Monolingual and Bilingual Corpora in Lexicography

    Science.gov (United States)

    Miangah, Tayebeh Mosavi

    2009-01-01

    Constructing and exploiting different types of corpora are among computer applications exposed to the researchers in different branches of science including lexicography. In lexicography, different types of corpora may be of great help in finding the most appropriate uses of words and expressions by referring to numerous examples and citations.…

  14. Presentational Focus in Heritage and Monolingual Spanish

    Science.gov (United States)

    Hoot, Bradley

    2012-01-01

    In Spanish, it is most commonly claimed that constituents in narrow presentational focus appear rightmost, where they also get main stress (1a), while stress in situ (1b) is infelicitous. (1) [Context: Who bought a car?]. a. Compró un carro mi [mamá][subscript F]. bought a car my mom. b. Mi [mamá ][subscript F] compró un carro. However, some…

  15. Monolingual Probabilistic Programming Using Generalized Coroutines

    CERN Document Server

    Kiselyov, Oleg

    2012-01-01

    Probabilistic programming languages and modeling toolkits are two modular ways to build and reuse stochastic models and inference procedures. Combining strengths of both, we express models and inference as generalized coroutines in the same general-purpose language. We use existing facilities of the language, such as rich libraries, optimizing compilers, and types, to develop concise, declarative, and realistic models with competitive performance on exact and approximate inference. In particular, a wide range of models can be expressed using memoization. Because deterministic parts of models run at full speed, custom inference procedures are trivial to incorporate, and inference procedures can reason about themselves without interpretive overhead. Within this framework, we introduce a new, general algorithm for importance sampling with look-ahead.

  16. Monolingual document retrieval for European languages

    NARCIS (Netherlands)

    Hollink, V.; Kamps, J.; Monz, C.; de Rijke, M.

    2004-01-01

    Recent years have witnessed considerable advances in information retrieval for European languages other than English.We give an overview of commonly used techniques and we analyze them with respect to their impact on retrieval eectiveness. The techniques considered range from linguistically motivate

  17. Monolingual Lexicography and Linguistic Variation in Shona

    African Journals Online (AJOL)

    R.B. Ruthven

    though illustrative examples are drawn from Shona alone, it is, however, believed that the prob- lems highlighted in .... Bibles and educational books to create literature for the new converts who had become literate .... (declare love) hwahwa vs.

  18. Multilingual alignments by monolingual string differences

    OpenAIRE

    Lardilleux, Adrien; Lepage, Yves

    2008-01-01

    International audience; We propose a method to obtain subsentential alignments from several languages simultaneously. The method handles several languages at once, and avoids the complexity explosion due to the usual pair-by-pair processing. It can be used for different units (characters, morphemes, words, chunks). An evaluation of word alignments with a trilingual machine translation corpus has been conducted. A comparison of the results with those obtained by state of the art alignment soft...

  19. Cultural Aspects in the Shona Monolingual Dictionary:

    African Journals Online (AJOL)

    Riette Ruthven

    person must know in order to function in a particular society (Wardhaugh 1998: 215). The article ... lexicography; and (2) the treatment of cultural aspects in Duramazwi Guru reChiShona (2001). Exam- .... about subjects in public. If people have ...

  20. Monolingual Accounting Dictionaries for EFL Text Production

    DEFF Research Database (Denmark)

    Nielsen, Sandro

    2009-01-01

    that deal with these aspects are necessary for the international user group as they produce subject-field specific and register-specific texts in a foreign language, and the data items are relevant for the various stages in text production: draft writing, copyediting, stylistic editing and proofreading....... of information. By identifying and analysing the users' factual and linguistic competences, user needs, use-situations and the stages involved in producing accounting texts in English as a foreign language, lexicographers will have a sound basis for designing the optimal English accounting dictionary for EFL...

  1. Monolingual accounting dictionaries for EFL text production

    DEFF Research Database (Denmark)

    Nielsen, Sandro

    2006-01-01

    that deal with these aspects are necessary for the international user group as they produce subject-field specific and register-specific texts in a foreign language, and the data items are relevant for the various stages in text production: draft writing, copyediting, stylistic editing and proofreading....... of information. By identifying and analysing the users' factual and linguistic competences, user needs, use-situations and the stages involved in producing accounting texts in English as a foreign language, lexicographers will have a sound basis for designing the optimal English accounting dictionary for EFL...

  2. Some Features of Monolingual LSP Dictionaries

    African Journals Online (AJOL)

    rbr

    The methods of description and explanation are also differ- ent. A definition of concepts in ...... rior frontal cerebral convolution (Broca's gyrus) was related to speech. He was one of the first to ... clearly this image into words. LSP or specialized ...

  3. 流域非点源污染景观源汇格局遥感解析%Remote sensing parsing on non-point pollution landscape source and assembly pattern in river basin

    Institute of Scientific and Technical Information of China (English)

    张新; 程熙; 李万庆; 罗雷

    2014-01-01

    流域非点源污染景观源汇格局解析是流域水质污染物产生、输运机理认知与有效防治措施制定的重要科学理论基础。该文以充分挖掘流域遥感数据多时空尺度的特征与优势为目标,制定了流域非点源污染景观源汇类型界定方案,提出了像元级、亚像元级以及时序更新的流域非点源污染景观源汇格局遥感解析方法。在此基础上,以福建省九龙江流域为例,对不透水面这一典型流域非点源污染“源”景观2010年空间格局进行了信息提取,并对2000、2005年对应信息进行了时序更新与空间特征分析,结果显示2000-2010年间九龙江流域内不透水面覆盖面积增长了33.38%。该研究可为中国流域非点源污染研究、生态管理与建设提供参考。%The non-point pollution landscape source and assembly pattern of a river basin and its spatio-temporal process analysis are the scientific theoretical bases for studying the pollution, production, transport, prevention, and policy of river water. In this paper, to mine the spatio-temporal character and advantages of remote sensing data, the definition schedule of the landscape of the river basin non-point pollution source and assembly was introduced. The first types of landscape in the river basin included the impervious surface area (ISA) and the pervious surface area. The second types of landscapes in the river basin consisted of 14 different types, including woodland, orchard, road, rural area, town, and paddy field, etc. The river basin non-point pollution landscape source and assembly pattern remote sensing parsing method was subsequently presented at the pixel, sub-pixel, and time-renewing levels. (1) A “globe-local” coupling information extraction model for ISA at the pixel level was established. Through the mining and integration of the spatial information in a local image area, the spectral instability of the whole scale was optimized. The

  4. Concurrent Lexicalized Dependency Parsing A Behavioral View on ParseTalk Events

    CERN Document Server

    Schacht, S; Broeker, N; Schacht, Susanne; Hahn, Udo; Broeker, Norbert

    1994-01-01

    The behavioral specification of an object-oriented grammar model is considered. The model is based on full lexicalization, head-orientation via valency constraints and dependency relations, inheritance as a means for non-redundant lexicon specification, and concurrency of computation. The computation model relies upon the actor paradigm, with concurrency entering through asynchronous message passing between actors. In particular, we here elaborate on principles of how the global behavior of a lexically distributed grammar and its corresponding parser can be specified in terms of event type networks and event networks, resp.

  5. Ventajas de la metafonología y semi-inversión lingüística en niños monolingües aprendientes de EFL / Advantages of the metaphonology and linguistic semi-immersion in monolingual children learning EFL

    Directory of Open Access Journals (Sweden)

    Juan Jesús Rueda López

    2009-06-01

    Full Text Available Resumen: Este estudio piloto de nueve meses de duración presenta un análisis empírico que refleja la evolución de los fonemas oclusivos sordos ingleses /ph/, /th/, /kh/ en dos grupos (control y experimental de niños monolingües españoles con edades comprendidas entre los 6,3 (6 años y 3 meses y 7,8. El seguimiento se llevó a cabo para determinar si los niños del grupo experimental producían aspiración en las realizaciones físicas de /ph,th,kh/ en mayor medida que los niños del grupo control. La hipótesis inicial se basaba en la idea de que a lo largo de un curso académico los sujetos del grupo experimental desarrollarían un VOT (Voice Onset Time superior al grupo control. Summary: This nine month duration pilot study presents an empirical analysis that shows the evolution of the voiceless plosive English phonemes /ph/, /th/, /kh/ in two groups (control and experimental of Spanish monolingual children aged 6.3 (6 years and 3 months to 7.8 years old. The monitoring aimed to discover whether the experimental group would produce a more natural realization of the English phonemes mentioned above than the control group. The hypothesis predicted that the experimental group would develop a longer VOT than the control group by the end of the academic year.

  6. On Deftly Introducing Procedural Elements into Unification Parsing

    Science.gov (United States)

    1990-01-01

    be represented by a substitution list that binds ?AGR to the disjunction itself, but the following case (AGR ?P ?N) lq (:OR (AGR (2ND) (SNG)) (AGR...identifies the two values by binding them both to a single variable, the conditions for our constrained disjunction are met. However, if the...be unknown in different circumstances. Either class, for example, can be unknown in questions or anaphors . While unification can certainly handle

  7. YakYak: Parsing with Logical Side Constraints

    DEFF Research Database (Denmark)

    Hansen, Niels Damgaard; Klarlund, Nils; Schwartzbach, Michael Ignatieff

    2000-01-01

    Programming language syntax is often described by means of a context-free grammar, which is restricted by constraints programmed into the action code associated with productions. Without such code, the grammar would explode in size if it were to describe the same language. We present the tool Yak...

  8. LR-parsing of Extended Context-free Grammars

    DEFF Research Database (Denmark)

    Madsen, Ole Lehrmann; Kristensen, Bent Bruun

    1976-01-01

    To improve the readability of a grammar it is common to use extended context free grammars (ECFGs) which are context free grammars (CFGs) extended with the repetition operator (*), the alternation operator (¦) and parentheses to express the right hand sides of the productions. The topic treated h...

  9. Finding EL+ justifications using the Earley parsing algorithm

    CSIR Research Space (South Africa)

    Nortje, R

    2009-12-01

    Full Text Available small modules for EL+ entailment based on reachability. The authors extend the current notion of forward reachability to obtain a bi-directional version, and show that the bi-directional reachability algorithm allows the authors to transform EL+ ontology...

  10. Document Image Parsing and Understanding using Neuromorphic Architecture

    Science.gov (United States)

    2015-03-01

    Image processing front - end software is designed to read in the scanned images of text and separate them into blocks of smaller images of single...mechanism that enables the BSB to generate fuzzy pattern matching results which retain rich information that could be processed by the upper association...starting point and the end point of the reference line are computed. This offset is the indication of angle of rotation as shown in Figure 5 (left

  11. On Parsing Visual Sequences with the Hidden Markov Model

    Directory of Open Access Journals (Sweden)

    Naomi Harte

    2009-01-01

    Full Text Available Hidden Markov Models have been employed in many vision applications to model and identify events of interest. Their use is common in applications where HMMs are used to classify previously divided segments of video as one of a set of events being modelled. HMMs can also simultaneously segment and classify events within a continuous video, without the need for a separate first step to identify the start and end of the events. This is significantly less common. This paper is an exploration of the development of HMM frameworks for such complete event recognition. A review of how HMMs have been applied to both event classification and recognition is presented. The discussion evolves in parallel with an example of a real application in psychology for illustration. The complete videos depict sessions where candidates perform a number of different exercises under the instruction of a psychologist. The goal is to isolate portions of video containing just one of these exercises. The exercise involves rotating the head of a kneeling subject to the left, back to centre, to the right, to the centre, and repeating a number of times. By designing a HMM system to automatically isolate portions of video containing this exercise, issues such as the strategy of choice of event to be modelled, feature design and selection, as well as training and testing are reviewed. Thus this paper shows how HMMs can be more extensively applied in the domain of event recognition in video.

  12. Specifying a shallow grammatical representation for parsing purposes

    CERN Document Server

    Voutilainen, A; Voutilainen, Atro; Jarvinen, Timo

    1995-01-01

    Is it possible to specify a grammatical representation (descriptors and their application guidelines) to such a degree that it can be consistently applied by different grammarians e.g. for producing a benchmark corpus for parser evaluation? Arguments for and against have been given, but very little empirical evidence. In this article we report on a double-blind experiment with a surface-oriented morphosyntactic grammatical representation used in a large-scale English parser. We argue that a consistently applicable representation for morphology and also shallow syntax can be specified. A grammatical representation with a near-100% coverage of running text can be specified with a reasonable effort, especially if the representation is based on structural distinctions (i.e. it is structurally resolvable).

  13. Cross-lingual Semantic Parsing with Categorial Grammars

    NARCIS (Netherlands)

    Evang, Kilian

    2017-01-01

    Humans communicate using natural language. We need to make sure that computers can understand us so that they can act on our spoken commands or independently gain new insights from knowledge that is written down as text. A “semantic parser” is a program that translates natural-language sentences int

  14. Learning and Parsing Video Events with Goal and Intent Prediction

    Science.gov (United States)

    2012-03-19

    differentiated from the relation ’Near(A,B)’ unless kinect data is used. The other reason is the inaccuracy of foreground detection. Fortunately...following as- pects: • Using kinect data to better define agent poses in the 3D setting. • Clustering more specific actions. An action can be defined as a

  15. Parsing the Interferon Transcriptional Network and Its Disease Associations.

    Science.gov (United States)

    Mostafavi, Sara; Yoshida, Hideyuki; Moodley, Devapregasan; LeBoité, Hugo; Rothamel, Katherine; Raj, Towfique; Ye, Chun Jimmie; Chevrier, Nicolas; Zhang, Shen-Ying; Feng, Ting; Lee, Mark; Casanova, Jean-Laurent; Clark, James D; Hegen, Martin; Telliez, Jean-Baptiste; Hacohen, Nir; De Jager, Philip L; Regev, Aviv; Mathis, Diane; Benoist, Christophe

    2016-01-28

    Type 1 interferon (IFN) is a key mediator of organismal responses to pathogens, eliciting prototypical "interferon signature genes" that encode antiviral and inflammatory mediators. For a global view of IFN signatures and regulatory pathways, we performed gene expression and chromatin analyses of the IFN-induced response across a range of immunocyte lineages. These distinguished ISGs by cell-type specificity, kinetics, and sensitivity to tonic IFN and revealed underlying changes in chromatin configuration. We combined 1,398 human and mouse datasets to computationally infer ISG modules and their regulators, validated by genetic analysis in both species. Some ISGs are controlled by Stat1/2 and Irf9 and the ISRE DNA motif, but others appeared dependent on non-canonical factors. This regulatory framework helped to interpret JAK1 blockade pharmacology, different clusters being affected under tonic or IFN-stimulated conditions, and the IFN signatures previously associated with human diseases, revealing unrecognized subtleties in disease footprints, as affected by human ancestry.

  16. Parsing brain activity associated with acupuncture treatment in Parkinson's diseases.

    Science.gov (United States)

    Chae, Younbyoung; Lee, Hyejung; Kim, Hackjin; Kim, Chang-Hwan; Chang, Dae-Il; Kim, Kyung-Mi; Park, Hi-Joon

    2009-09-15

    Acupuncture, a common treatment modality within complementary and alternative medicine, has been widely used for Parkinson's disease (PD). Using functional magnetic resonance imaging (fMRI), we explored the neural mechanisms underlying the effect of specific and genuine acupuncture treatment on the motor function in patients with PD. Three fMRI scans were performed in random order in a block design, one for verum acupuncture (VA) treatment, another one for a covert placebo (CP), and the third one for an overt placebo (OP) at the motor function implicated acupoint GB34 on the left foot of 10 patients with PD. We calculated the contrast that subtracts the blood-oxygen-level dependent (BOLD) response for the acupuncture effect (VA vs. CP) and the placebo effect (CP vs. OP). We found a significant improvement in the motor function of the affected hand after acupuncture treatment. The putamen and the primary motor cortex were activated when patients with PD received the acupuncture treatment (VA vs. CP) and these activations correlated with individual enhanced motor function. Expectation towards acupuncture modality (CP vs. OP) elicited activation over the anterior cingulate gyrus, the superior frontal gyrus, and the superior temporal gyrus. These findings suggest that acupuncture treatment might facilitate improvement in the motor functioning of patients with PD via the basal ganglia-thalamocortical circuit.

  17. Using Event-Based Parsing to Support Dynamic Protocol Evolution

    Science.gov (United States)

    2003-03-01

    System Generator HTTP 1.0 Parser Composer EBP System Generator HTTP 1.0 Parser Composer Client... Generator HTTP 1.0 Parser Composer EBP System Generator HTTP 1.0 Parser Composer Client HTTP 1.1 Proxy Event Handler 1-7 8 8 Fig. 8: Modified...configuration and scenario events 9 though 19. Server HTTP 1.0 EBP System Generator HTTP 1.0 Parser Composer Client HTTP 1.1 Proxy

  18. Parsing with Regular Expressions & Extensions to Kleene Algebra

    DEFF Research Database (Denmark)

    Grathwohl, Niels Bjørn Bugge

    . In the second part of this thesis, we study two extensions to Kleene algebra. Chomsky algebra is an algebra with a structure similar to Kleene algebra, but with a generalized mu-operator for recursion instead of the Kleene star. We show that the axioms of idempotent semirings along with continuity of the mu......-operator completely axiomatize the equational theory of the context-free languages. KAT+B! is an extension to Kleene algebra with tests (KAT) that adds mutable state. We describe a test algebra B! for mutable tests and give a commutative coproduct between KATs. Combining the axioms of B! with those of KAT and some...

  19. Efficient Grammar Induction Algorithm with Parse Forests from Real Corpora

    Science.gov (United States)

    Kurihara, Kenichi; Kameya, Yoshitaka; Sato, Taisuke

    The task of inducing grammar structures has received a great deal of attention. The reasons why researchers have studied are different; to use grammar induction as the first stage in building large treebanks or to make up better language models. However, grammar induction has inherent computational complexity. To overcome it, some grammar induction algorithms add new production rules incrementally. They refine the grammar while keeping their computational complexity low. In this paper, we propose a new efficient grammar induction algorithm. Although our algorithm is similar to algorithms which learn a grammar incrementally, our algorithm uses the graphical EM algorithm instead of the Inside-Outside algorithm. We report results of learning experiments in terms of learning speeds. The results show that our algorithm learns a grammar in constant time regardless of the size of the grammar. Since our algorithm decreases syntactic ambiguities in each step, our algorithm reduces required time for learning. This constant-time learning considerably affects learning time for larger grammars. We also reports results of evaluation of criteria to choose nonterminals. Our algorithm refines a grammar based on a nonterminal in each step. Since there can be several criteria to decide which nonterminal is the best, we evaluate them by learning experiments.

  20. Modelling Parsing Constraints with High-Dimensional Context Space.

    Science.gov (United States)

    Burgess, Curt; Lund, Kevin

    1997-01-01

    Presents a model of high-dimensional context space, the Hyperspace Analogue to Language (HAL), with a series of simulations modelling human empirical results. Proposes that HAL's context space can be used to provide a basic categorization of semantic and grammatical concepts; model certain aspects of morphological ambiguity in verbs; and provide…

  1. Parsing the intrinsic networks underlying attention: a resting state study.

    Science.gov (United States)

    Visintin, Eleonora; De Panfilis, Chiara; Antonucci, Camilla; Capecci, Cinzia; Marchesi, Carlo; Sambataro, Fabio

    2015-02-01

    The attention system functionally modulates brain activity to exert control over thoughts, feelings and actions. Three distinct but mutually interacting components of attention have been hypothesized: alerting, which mediates the maintenance of a state of vigilance toward an upcoming stimulus; orienting, which supports the selection of sensory information, and executive control that is involved in detecting and resolving cognitive conflicts. The performance of tasks probing these components engages fronto-parietal and thalamic regions. Also, general attention has been associated with the activity of resting-state networks (RSNs), which are sets of brain regions with synchronous temporal fluctuations. Importantly, the association between the intrinsic brain activity of RSNs and the efficiency and integration of the specific attentional components remains largely unexplored. For this aim, we recruited twenty healthy volunteers who performed the Attention Network Test-Revised (ANT-R), assessing the alerting, orienting and executive control components as well as their interactions, and underwent resting-state functional magnetic resonance imaging. For each participant RSNs were estimated using double regression. The RSNs spanning across areas previously implicated in attentional processing were correlated with ANT-R scores using multiple regressions. Significant brain behavior correlations emerged between ANT-R scores and RSNs comprising the regions relevant for attentional processing, i.e., left and right prefronto-parietal (PFC-PC), dorsal attentional (DAN), salience (SN), and default mode (DMN) networks. The activity of PFC-PC networks was correlated with alerting in parietal and frontal regions, and with location conflict in the frontal regions. The DAN connectivity was correlated with flanker, location conflict, and their interaction in parietal regions. SN was associated with flanker by location and flanker by orienting interactions in the inferior frontal regions. Finally, the activity of the DMN was associated with flanker conflict in midline structures such as precuneus and anterior cingulate cortex and also in right angular gyrus. These results suggest that the brain is endowed with an intrinsic functional organization to support attention, not only in its global function, but also in its distinct components.

  2. Word Parsing by Late-Learning French-English Bilinguals.

    Science.gov (United States)

    Golato, Peter

    2002-01-01

    Research on early learning French-English bilinguals suggests that development of segmentation is best characterized by a parameter-setting theory of language acquisition in which French segmentation is marked relative to English segmentation. Reports recent research with late-learning French-English bilinguals that finds evidence for parameter…

  3. Shallow parsing with long short-term memory

    NARCIS (Netherlands)

    Hammerton, J; Chen, SH; Cheng, HD; Chiu, DKY; Das, S; Duro, R; Kerre, EE; Leong, HV; Li, Q; Lu, M; Romay, MG; Ventura, D; Wu, J

    2003-01-01

    Applying Artificial Neural Networks (ANNs) to language learning has been an active area of research in connectionism. However much of this work has involved small and/or artificially created data sets, whilst other approaches to language learning are now routinely applied to large real-world

  4. Digital Preservation Ingest Parsing Service for Complex Data Objects

    Energy Technology Data Exchange (ETDEWEB)

    Flynn, Don F.

    2006-05-01

    Large scientific research efforts whether they are in academia, government or the private sector are usually comprised of diverse and geographically separated teams that collect data using various methods. The information that comprises a scientific study is often created in large quantities and vastly different formats and structures. Results may be produced from different software applications using a range of protocols, databases, and operating systems, creating a “Complex Data Object”. The computing industry, and more precisely, the field of knowledge management is faced with the significant challenge of how to best administer these digital assets in a fashion that provides efficient authoring and collaboration capabilities in the distributed team environment while still maintaining the historical scientific record. While ongoing efforts are addressing the problem of wide-area data management, less attention has been given to accurately capturing the scientific record of interest. In December 2004, at a Department of Energy (DOE) National Collaboratory Workshop, the “fossil record of science” was identified as a critical issue. The purpose of this research is to prove that the complex data object (CDO) can be transformed into a Digital Preservation Object (DPO) in order to meet the requirements for data provenance and long-term archival. The second step of this research is to then prove that the inverse is also true, that a DPO can be extracted and transformed back to the same state as the original CDO for future inquiry.

  5. A Digital Preservation Ingest Parsing Agent for Complex Data Objects

    Energy Technology Data Exchange (ETDEWEB)

    Flynn, Don F.

    2006-01-05

    Digital preservation systems are being researched and studied in academia and government-funded efforts all over the world. However, the actual release of a proven production system is still yet to happen. Some efforts have broken ground and present great potential, but major roadblocks still exist. One such obstacle is the complex data object, similar to what is produced by the DOE2000 Electronic Laboratory Notebook (ELN). This research effort will focus on determining a methodology for extracting a complex data object from the ELN, and transforming that into a standard digital preservation ingest file. This standard file type will be based on the Library of Congress Metadata Encoding & Transmission Standard (METS) . A METS file serves as a Submission Information Package (SIP) as defined by the Open Archive Information System (OAIS). In addition to the content information, a complete set of Preservation Description Information (PDI) for the content conformation needs to be collected as well in order to create an Archival Information Package (AIP) which will be used for preservation.

  6. Shallow parsing with long short-term memory

    NARCIS (Netherlands)

    Hammerton, J; Chen, SH; Cheng, HD; Chiu, DKY; Das, S; Duro, R; Kerre, EE; Leong, HV; Li, Q; Lu, M; Romay, MG; Ventura, D; Wu, J

    2003-01-01

    Applying Artificial Neural Networks (ANNs) to language learning has been an active area of research in connectionism. However much of this work has involved small and/or artificially created data sets, whilst other approaches to language learning are now routinely applied to large real-world dataset

  7. Parsing Big Data%解析大数据

    Institute of Scientific and Technical Information of China (English)

    张铮

    2013-01-01

    With the development of the Internet of Things, data processing become the focus of attention regardless of the amount, or the processing speed. This paper explore the big data from the source and amout of big data, type of big data, processing speed and manner of big data three aspect, finally, present a big data model;And Analysis the processing technology and strategy of big data.%  随着物联网的发展,大数据的处理无论是从量、还是从处理速度上都成为人们关注的焦点。从大数据的来源及数量、大数据类型、处理速度及方式3方面对大数据进行探讨,给出了大数据模型;分析了大数据的处理技术和策略。

  8. Parsing the parser: A case study in programming style

    NARCIS (Netherlands)

    Desain, P.

    1991-01-01

    The value of the computational approach in the cognitive sciences lays both in the need to formalize theories such that they can be implemented as computer programs and in the subsequent ease of experimenting with these programs. In this paper I hope to show that, the cleaner a programming style is

  9. Parsing the components of the psychomotor syndrome in schizophrenia

    NARCIS (Netherlands)

    Docx, L.; Morrens, M.; Bervoets, C.; Hulstijn, W.; Hert, M. De; Baeken, C.; Audenaert, K.; Sabbe, B.G.C.C.

    2012-01-01

    Objective: Catatonia, extrapyramidal signs, psychomotor slowing, and (motoric) neurological soft signs are well-known psychomotor symptoms in schizophrenia. This study aims at investigating the interrelations between these symptoms. In addition, associations between psychomotor symptoms, clinical sy

  10. A Parse Tree Model for Analyzing And Detecting SQL Injection ...

    African Journals Online (AJOL)

    2013-03-01

    Mar 1, 2013 ... become one of the most serious threats to Web applications today. An SQL ... achieving 100% security precision may be too difficult. However, we ... 34 as 1998 [17]. Since 2002, over 50% of total cyber vulnerabilities were.

  11. Parsing with Regular Expressions & Extensions to Kleene Algebra

    DEFF Research Database (Denmark)

    Grathwohl, Niels Bjørn Bugge

    to do so. To be optimal, the algorithm performs a PSPACE-complete preprocessing step; for a fixed RE the running time is linear in the input size. Finally, we present and implement a determinization procedure, omitting the preprocessing step, and a surface language, Kleenex, for expressing general...... string transductions. We have implemented a compiler that translates Kleenex programs into efficient C code. The resulting programs are essentially optimally streaming, run in worst-case linear time in the input size, and show consistent high performance in the 1 Gbps range on various use cases....... In the second part of this thesis, we study two extensions to Kleene algebra. Chomsky algebra is an algebra with a structure similar to Kleene algebra, but with a generalized mu-operator for recursion instead of the Kleene star. We show that the axioms of idempotent semirings along with continuity of the mu...

  12. An All-Fragments Grammar for Simple and Accurate Parsing

    Science.gov (United States)

    2012-03-21

    see Figure 1(a)) derived from a binarized treebank B. G is formally a tree-substitution grammar [ Resnik , 1992, Bod, 1993] wherein each subgraph of each...of EMNLP, 2008. 18 Matt Post and Daniel Gildea. Bayesian Learning of a Tree Substitution Grammar. In Proceedings of ACL-IJCNLP, 2009. Philip Resnik

  13. Unilateral neglect and perceptual parsing: a large-group study.

    Science.gov (United States)

    Neppi-Mòdona, Marco; Savazzi, Silvia; Ricci, Raffaella; Genero, Rosanna; Berruti, Giuseppina; Pepi, Riccardo

    2002-01-01

    Array-centred and subarray-centred neglect were disambiguated in a group of 116 patients with left neglect by means of a modified version of the Albert test in which the central column of segments was deleted so as to create two separate sets of targets grouped by proximity. The results indicated that neglect was more frequent in array- than subarray-centred coordinates and that, in a minority of cases, neglect co-occurred in both coordinate-systems. The two types of neglect were functionally but not anatomically dissociated. Presence of visual field defects was not prevalent in one type of neglect with respect to the other. These data contribute further evidence to previous single-case and small-group studies by showing that neglect can occur in single or multiple reference frames simultaneously, in agreement with current neuropsychological, neurophysiological and computational concepts of space representation.

  14. Encoding and recall of parsed stories in hypnosis.

    Science.gov (United States)

    Muzur, A; Fabbro, F; Clarici, A; Braun, S; Bava, A

    1998-12-01

    To define the relationship between aspects of memory concerning encoding and recall of short texts and hypnosis, standardized stories were narrated to 12 subjects, both during ordinary state of consciousness and after hypnotic induction by means of the Stanford Hypnotic Susceptibility Scale (Form C). The narrative material used as a stimulus was based on several stories taken from popular oral tradition, previously analyzed according to the classic criteria proposed by Rumelhart in 1975 and Mandler and Johnson in 1977. The subjects' memory performance during both experimental conditions was tape-recorded and compared with the analysis of the original stories (Terminal Nodes) as well as with the higher linguistic structures of the scheme (Basic Nodes), according to Rumelhart's typology. During hypnosis, the subjects recalled significantly fewer narrative elements at both levels of analysis (Terminal Nodes and Basic Nodes). We conclude that hypnosis does not enhance recent memory.

  15. Parsing the parser: A case study in programming style

    NARCIS (Netherlands)

    Desain, P.

    1991-01-01

    The value of the computational approach in the cognitive sciences lays both in the need to formalize theories such that they can be implemented as computer programs and in the subsequent ease of experimenting with these programs. In this paper I hope to show that, the cleaner a programming style is

  16. Treatment of spelling variants in Setswana monolingual dictionaries

    African Journals Online (AJOL)

    user

    writing system so that though northern Setswana speakers can speak using. [th/t] instead of [tlh/tl], in writing .... ants are caused by a difference in a single vowel or consonant, for instance fata/hata (dig) ..... Investigating English Style. London ...

  17. Multi-Word Units in Monolingual Scandinavian Dictionaries

    DEFF Research Database (Denmark)

    Schoonderbeek Hansen, Inger

    Referat af NFL (Nordisk Forening for Leksikografi) Symposium om Ordforbindelser i monolingvale nordiske ordbøger. Introduktion, referat af alle 13 foredrag og efterfølgende diskussion samt konklusion.......Referat af NFL (Nordisk Forening for Leksikografi) Symposium om Ordforbindelser i monolingvale nordiske ordbøger. Introduktion, referat af alle 13 foredrag og efterfølgende diskussion samt konklusion....

  18. Critical Literacy for Monolinguals and Bilinguals-in-the-Making

    Science.gov (United States)

    Daniel, Mayra C.

    2008-01-01

    Teachers' knowledge base and cultural stances affect classroom practice and the school climate. In respect to immigrant populations, teachers' perceptions delimit what students come to believe they can accomplish. Teachers who espouse the goals of cultural pluralism validate the backgrounds of learners as well as legitimize bilingual bicultural…

  19. Correction of Noisy Sentences using a Monolingual Corpus

    CERN Document Server

    Chatterhee, Diptesh

    2011-01-01

    Correction of Noisy Natural Language Text is an important and well studied problem in Natural Language Processing. It has a number of applications in domains like Statistical Machine Translation, Second Language Learning and Natural Language Generation. In this work, we consider some statistical techniques for Text Correction. We define the classes of errors commonly found in text and describe algorithms to correct them. The data has been taken from a poorly trained Machine Translation system. The algorithms use only a language model in the target language in order to correct the sentences. We use phrase based correction methods in both the algorithms. The phrases are replaced and combined to give us the ?final corrected sentence. We also present the methods to model different kinds of errors, in addition to results of the working of the algorithms on the test set. We show that one of the approaches fail to achieve the desired goal, whereas the other succeeds well. In the end, we analyze the possible reasons ...

  20. Advanced Cantonese ESL Learners' Use of a Monolingual ...

    African Journals Online (AJOL)

    Alice Y.W. Chan, Department of English, City University of Hong Kong,. Hong Kong ... potential advantages of a learner's dictionary in the learning of a second or ...... language problems by consulting a resource which requires certain linguistic.

  1. The Treatment of Polysemy and Homonymy in Monolingual General ...

    African Journals Online (AJOL)

    rbr

    ticular criterion, these findings must be compared with those of other criteria, and verified against .... The Nguni people also relate iganu (a cow with a tan skin colour) ... conceptually related in that a marula fruit and a cow of a similar colour are .... traditional medicine to cure ingubhane (a type of sickness affecting children)).

  2. Learning Datives: The Tolerance Principle in Monolingual and Bilingual Acquisition

    Science.gov (United States)

    Yang, Charles; Montrul, Silvina

    2017-01-01

    We study the learnability problem concerning the dative alternations in English (Baker, 1979; Pinker, 1989). We consider how first language learners productively apply the double-object and to-dative constructions ("give the book to library"/"give the library the book"), while excluding negative exceptions ("donate the…

  3. Advantages of Bilinguals over Monolinguals in Learning a Third Language

    Science.gov (United States)

    Abu-Rabia, Salim; Sanitsky, Ekaterina

    2010-01-01

    The present study is an examination of the contribution of bilingualism to trilingualism, namely the influence of learning two different orthographies on learning a third. The participants were two groups of sixth graders from Israeli schools who were studying English as a foreign (second or third) language: Russian Israeli children for whom…

  4. Learning Datives: The Tolerance Principle in Monolingual and Bilingual Acquisition

    Science.gov (United States)

    Yang, Charles; Montrul, Silvina

    2017-01-01

    We study the learnability problem concerning the dative alternations in English (Baker, 1979; Pinker, 1989). We consider how first language learners productively apply the double-object and to-dative constructions ("give the book to library"/"give the library the book"), while excluding negative exceptions ("donate the…

  5. Narrative Development in Monolingual Spanish-Speaking Preschool Children

    Science.gov (United States)

    Castilla-Earls, Anny; Petersen, Douglas; Spencer, Trina; Hammer, Krista

    2015-01-01

    Research Findings: The purpose of this study was to describe differences in the narratives produced by 3-, 4-, and 5- year old Spanish-speaking (SS) children. Narrative productions of 104 typically developing children were collected using a story-retelling task and coded using the Index of Narrative Complexity. The results of this study indicate…

  6. Monolingual Teachers in Multilingual Settings: Changing Attitudes and Practices

    Science.gov (United States)

    Pritchard, Robert

    2012-01-01

    This article describes a 6-year, districtwide staff-development project that was implemented in an attempt to change teacher attitudes and practices as they relate to English learners (ELs). The specific goals of the project were (a) to help the district's teachers develop the knowledge base, pedagogical skills, and professional attitudes required…

  7. The Canadian Context: Monolingual Education in an "Officially" Multilingual Country

    Science.gov (United States)

    Kiernan, Julia E.

    2011-01-01

    This article will examine the sociopolitical language contexts that exist in institutions of Canadian post-secondary education, through investigating how government policies affect the consumption and teaching of language in writing classrooms. A survey of Canadian multiculturalist policy, multilingualism, and post-secondary education in terms of…

  8. Oral Narratives in Monolingual and Bilingual Preschoolers with SLI

    Science.gov (United States)

    Rezzonico, Stefano; Chen, Xi; Cleave, Patricia L.; Greenberg, Janice; Hipfner-Boucher, Kathleen; Johnson, Carla J.; Milburn, Trelani; Pelletier, Janette; Weitzman, Elaine; Girolametto, Luigi

    2015-01-01

    Background: The body of literature on narratives of bilingual children with and without specific language impairment (SLI) is growing. However, little is known about the narrative abilities of bilingual preschool children with SLI and their patterns of growth. Aims: To determine the similarities and differences in narrative abilities between…

  9. Multi-Word Units in Monolingual Scandinavian Dictionaries

    DEFF Research Database (Denmark)

    Schoonderbeek Hansen, Inger

    Referat af NFL (Nordisk Forening for Leksikografi) Symposium om Ordforbindelser i monolingvale nordiske ordbøger. Introduktion, referat af alle 13 foredrag og efterfølgende diskussion samt konklusion....

  10. Swahili Learners' Views on the Need for a Monolingual Swahili ...

    African Journals Online (AJOL)

    reading'. 2. A derivative is a word formed by adding prefixes and / or suffixes to a root morpheme, e.g. ... The nasal m does not have a vowel, but because it is followed by the consonant j, ... b) statement of the problem c) objective of the ...

  11. A cross-lingual framework for monolingual biomedical information retrieval

    NARCIS (Netherlands)

    Trieschnigg, D.; Hiemstra, D.; Jong, F. de; Kraaij, W.

    2010-01-01

    An important challenge for biomedical information retrieval (IR) is dealing with the complex, inconsistent and ambiguous biomedical terminology. Frequently, a concept-based representation defined in terms of a domain-specific terminological resource is employed to deal with this challenge. In this p

  12. Validation of the Spanish SIRS with monolingual Hispanic outpatients.

    Science.gov (United States)

    Correa, Amor A; Rogers, Richard; Hoersting, Raquel

    2010-09-01

    Psychologists are faced with formidable challenges in making their assessment methods relevant to growing numbers of Hispanic clients for whom English is not the primary or preferred language. Among other clinical issues, the determination of malingering has profound consequences for clients. In this investigation, we evaluated a Spanish translation of the Structured Interview of Reported Symptoms (SIRS; Rogers, Bagby, & Dickens, 1992) with 80 Spanish-speaking Hispanic American outpatients. Using a between-subjects simulation design, the Spanish SIRS was found to produce reliable results with small standard errors of measurement. Regarding validity, very large effect sizes (mean Cohen's d= 2.00) were observed between feigners and honest responders for the SIRS primary scales. We consider the potential role of the Spanish SIRS with reference to Spanish translations for other assessment instruments.

  13. Apuntes para una historia de la producción lexicográfica monolingüe en la Argentina: etapas del proceso de diccionarización y modalidades diccionarísticas entre 1870 y 1910 SOME NOTES ON THE HISTORY OF MONOLINGUAL LEXICOGRAPHIC PRODUCTION IN ARGENTINA: STAGES OF THE DICTIONARIZATION PROCESS AND LEXICOGRAPHIC MODALITIES BETWEEN 1870 AND 1910

    Directory of Open Access Journals (Sweden)

    Daniela Lauria

    2011-01-01

    Argentinianisms. On the other hand, some normative works emerged that collected barbarisms and censored their use, on account of their deviation from the peninsular Spanish variety. This paper studies the relations among the different stages of the dictionarization process and several dictionary-making modalities. To this effect, we analyze those dictionaries that included the Argentinian variety of the Spanish language, published between 1870 and 1910, by taking into account two aspects: a the different conditions of the dictionarization process; and b some cuts of segments selected from several domains of the lexicographical discourse (paratext, macrostructure, microstructure. First, this study intends to demonstrate that the monolingual dictionary is a discursive, historical and ideological instrument. Second, the analysis of the lexicographical discourse allows us to observe that these dictionaries operate for the construction of the national imaginary within the process of formation and consolidation of the modern national state.

  14. Variación morfosintáctica y lenguas en contacto: las formas analíticas y sintéticas del presente progresivo en el español monolingüe y bilingüe Morphosyntactic variation and language contact: analytic and synthetic forms of the present progressive in monolingual and bilingual Spanish

    Directory of Open Access Journals (Sweden)

    Stephen Fafulas

    2010-01-01

    Full Text Available En este trabajo se realiza un análisis cuantitativo sobre la variación morfosintáctica de las formas sintéticas (presente simple y analíticas (presente progresivo en contextos cuyo significado alude al tiempo presente progresivo en el español monolingüe y bilingüe. Se emplea una encuesta contextualizada, previamente codificada según el aspecto léxico-semántico del verbo y el valor semántico de los adverbios de tiempo, con el objetivo de evidenciar los contextos en los que hay variación de dichas formas. Además de los factores lingüísticos, se incluyen los factores extralingüísticos de género y bilingüismo en el análisis. Los resultados señalan que tanto el aspecto léxico-semántico del verbo como el valor semántico del adverbio son factores significativos en la predicción de ambas formas. De igual manera, el factor extralingüístico que considera el nivel de bilingüismo de los participantes tiene un efecto significativo. El estudio contribuye metodológicamente a la investigación de la variación de las formas analíticas y sintéticas, dado que el instrumento empleado en la presente monografía controla las variables lingüísticas y obtiene el mismo número de respuestas por persona, permitiendo una evaluación de los participantes en contextos idénticos. Por último, el estudio aporta a la literatura previa sobre el tema al proveer evidencia de que las formas sintéticas y analíticas aparecen en alternancia en un número de contextos mayor que los previamente identificados en otros estudios, lo cual permite definir debidamente el ámbito de la variación.In this study we present a quantitative analysis of the morphosyntactic variation of the analytic (present progressive and synthetic (simple present forms of present progressive aspect in monolingual and bilingual Spanish. By way of a contextualized questionnaire previously coded for the linguistic factors of verbal lexical aspect and semantics of the adverb, we

  15. Mapping Physical Formats to Logical Models to Extract Data and Metadata: The Defuddle Parsing Engine

    Energy Technology Data Exchange (ETDEWEB)

    Talbott, Tara D.; Schuchardt, Karen L.; Stephan, Eric G.; Myers, James D.

    2006-07-25

    Scientists, fueled by the desire for systems-level understanding of phenomena, increasingly need to share their results across multiple disciplines. Accomplishing this requires data to be annotated, contextualized, and readily searchable and translated into other formats. While these requirements can be addressed by custom programming or obviated by community standardization, neither approach has ‘solved’ the problem. In this paper, we describe a complementary approach – a general capability for articulating the format of arbitrary textual and binary data using a logical data model, expressed in XML-Schema, which can be used to provide annotation and context, extract metadata, and enable translation. This work is based on the draft specification for the Data Format Description Language and our open source “Defuddle” parser. We present an overview of the specification, detail the design of Defuddle, and discuss the benefits and challenges of this general approach to enabling discovery and sharing of diverse data sets.

  16. 试析中国式的现代艺术%Parsing vincent van gogh

    Institute of Scientific and Technical Information of China (English)

    徐莉萍

    2005-01-01

    面对势如破竹、日新月异的西方现代艺术,中国美术界采取了较为冷静的态度,即既不盲目模仿,也不乱加否定,而是吸收其精华,去其糟粕,立足本土,创造出符合我们自己国情的艺术.

  17. Parsing the Paradigms: The Case for Human Values in the Pharmacy Curriculum.

    Science.gov (United States)

    Mrtek, Robert G.; Mrtek, Marsha B.

    1991-01-01

    It is time to make pharmaceutical education more humanistic. There are established techniques, syllabi, and courses for imparting human values to learners. One or two faculty members integrating human values into courses can make a significant impact on students, even if the goal is simply to create awareness or increase sensitivity. (MSE)

  18. Myelin Biogenesis And Oligodendrocyte Development: Parsing Out The Roles Of Glycosphingolipids

    OpenAIRE

    2009-01-01

    The myelin sheath is an extension of the oligoddendrocyte (OL) plasma membrane enriched in lipids which ensheaths the axons of the central and peripheral nervous system. Here we review the involvement of glycosphingolipid in myelin/OL functions; including the regulation of OL differentiation, lipid raft-mediated trafficking and signaling, and neuron-glia interactions.

  19. Parsing fear: A reassessment of the evidence for fear deficits in psychopathy

    NARCIS (Netherlands)

    Hoppenbrouwers, S.S.; Bulten, B.H.; Brazil, I.A.

    2016-01-01

    Psychopathy is a personality disorder characterized by interpersonal manipulation and callousness, and reckless and impulsive antisocial behavior. It is often seen as a disorder in which profound emotional disturbances lead to antisocial behavior. A lack of fear in particular has been proposed as an

  20. LA_PRS: usSEABED PaRSed data for the Louisiana Region

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This data layer is a point coverage of known sediment samplings, inspections and probings from the usSEABED data collection and integrated using the software system...