Báo cáo khoa học: "HIDDEN UNDERSTANDING MODELS OF NATURAL LANGUAGE" ppt

... describe and evaluate hidden understanding models, a statistical learning approach to natural language understanding. Given a string of words, hidden understanding models determine the most likely ... states of each of the two models are unseen and must be inferred from the words. The problem of language understanding, then, is to recover the most likely meaning structure given a sequence of ... discuss 1) the problem of representing meaning in this framework, 2) the structure of the statistical model, 3) the process of training the model, and 4) the process of understanding using the...

Báo cáo khoa học: "Vector-based Models of Semantic Composition" ppt

... achieves.As a result of the assumption of symmetry, boththese models are ‘bag of words’ models and wordorder insensitive. Relaxing the assumption of sym-metry in the case of the simple additive ... function of the tensor product of u and v, then we obtain multi-plicative models: p = Cuv (4)where C is a tensor of rank 3, which projects thetensor product of u and v onto the space of p.Further ... 1994).Computational models of semantics which usesymbolic logic representations (Montague, 1974)can account naturally for the meaning of phrases orsentences. Central in these models is the notion of compositionality...

Báo cáo khoa học: "Cognitively Plausible Models of Human Language Processing" ppt

... developingcognitively plausible models of human languageprocessing. Developing computational models is of scientiﬁc importance in so far as models are im-plemented theories: models of language process-ing ... cover-age of a model, a corpus of unrestricted, naturallyoccurring text is required. The use of contextual-ized language data makes it possible to assess notonly syntactic models, but also models ... psycholinguis-tics is often oblivious of work in computationallinguistics (CL). To test their theories, psycholin-guists construct computational models of hu-man language processing, but these models of- ten...

Tài liệu Báo cáo khoa học: "The Lexical Component of Natural Language Processing" docx

... cognitive functions. As yet, no adequate system for natural language processing has approached human levels of performance. Of the various problems that natural language processing has re- vealed, ... Component of Natural Processing George A. Miller Cognitive Science Laboratory Princeton University Language Abstract Computational linguistics is generally considered to be the branch of engineering ... useful things with linguistic signals, but it can also be viewed as an extended test of computational theories of human cognition; it is this latter perspective that psychol- ogists find most...

Tài liệu Báo cáo khoa học: "The Rhetorical Parsing of Natural Language Texts" docx

... interpretations of two of the texts: the discourse trees of one analyst mirrored the paragraph structure of the texts, while the discourse trees of the other mirrored a logical organization of the ... precision of 68%. In contrast, a random pro- cedure recalled, on average, only 38.4% of the sentences considered important by the judges, with a precision of 38.4%. And the Microsoft Office 97 ... the rank of a variable is correlated with the rank of another variable. The value of the statistic ranges from -1, indicating that high ranks of one variable occur with low ranks of the other...

Báo cáo khoa học: "Expanding the Horizons of Natural Language Interfaces" doc

... these non-literal aspects of communication; that the new technology of powerful personal computers with integral graphics displays offers techniques superior to those of humans for these aspects, ... based on a judicious mixture of these techniques and the still valuable methods of more traditional natural language interfaces. 1. Introduction Most work so far on natural language communication ... part of a larger project on user interfaces [ 1 ], we (Hayes and Mouradian [7]) have also developed a parser capable of dealing flexibly with many forms of ungrammaticality. Perhaps part of...

Báo cáo khoa học: "A Functional Semantics of Natural Language Grammar" pot

... representing the official policies or endorsements, either expressed or implied, of Ihe Air Force Office of Scientific Research of the U.S Government. active coordination of many kinds of knowledge ... an issue of control. 2This role of intention in the use of language is one of the reasons for calling the semantics in this paper a functional semantics Another is our uSe of one of the "functional" ... knowledge of past mentions, a model of the hearer's attention and of possible confusion candidates, and also the knowledge of denotationally appropriate le.<ic.~l items; these elements of...

Báo cáo khoa học: "Empirically-based Control of Natural Language Generation" ppt

... behaviour of a natural lan-guage generation system by correlating in-ternal decisions taken during free generation of a wide range of texts with the surface sty-listic characteristics of the ... Proceedings of the 43rd Annual Meeting of the ACL, pages 58–65,Ann Arbor, June 2005.c2005 Association for Computational LinguisticsEmpirically-based Control of Natural Language Generation ... controlled during the generation of short medical in-formation texts. 1 Introduction This paper1 is concerned with the problem of con-trolling the output of natural language generation (NLG)...

Báo cáo khoa học: "A Computational Semantics for Natural Language" ppt

... processes of information retrieval, inference, planning, etc. b. a system of linkages between expressions of the natural language and those of the conceptual representation, and c. a system of ... name of the sense of that constant). By ap- pending multiple occurrences of ' T' to constants, we obtain new constants that denote concepts of concepts, concepts of concepts of concepts, ... Language: NFLT The translation of input sentences into a logical for- malism of some kind is a fairly standard feature of com- puter systems for natural- language understanding, and one which...

Báo cáo khoa học: "Re-Ranking Models For Spoken Language Understanding Marco Dinarelli University of Trento Italy" potx

... This allows the use of a wide set of stochastic language models (bothback-off and interpolated models with several dis-counting techniques like Good-Turing, Witten-Bell, Natural, Kneser-Ney, ... evalu-ation of spoken understanding models and linguis-tic studies. The corpus is composed of 1257 di-alogs, from 250 different speakers, acquired witha Wizard of Oz (WOZ) approach in the context of ... for conceptclassiﬁcationIn the context of Spoken Language Understanding (SLU), concept classiﬁcation is the task of asso-ciating the best sequence of concepts to a givensentence, i.e. word...

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