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

... developingcognitively plausible models of human language processing. Developing computational models is of scientiﬁc importance in so far as models are im-plemented theories: models of language process-ing ... thedevelopment of cognitively plausible models of human language processing. This task can be de-composed into a modeling challenge (building models that instantiate known properties of hu-man language ... CrosslinguisticsAll models of human language processing dis-cussed so far rely on supervised training data. Thisraises another aspect of the modeling challenge:the human language processor is the product of an...

... 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 ... sequence of spectra, the relation between the meaning of a sentence and the sequence of words is not a simple linear sequential model. Language is inherently nested, with subgroups of concepts ... 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...

Báo cáo khoa học: "Latent Variable Models of Concept-Attribute Attachment" pptx

... Proceedings of the 47th Annual Meeting of the ACL and the 4th IJCNLP of the AFNLP, pages 620–628,Suntec, Singapore, 2-7 August 2009.c2009 ACL and AFNLPLatent Variable Models of Concept-Attribute ... between the top 10 concepts of C(w) and any of the gold-standard concepts, or ifC(w) is empty. The overalll precision of a givenmodel is the average of the DRR scores of individ-ual attributes, ... Conservation of entropy is a strongassumption, and in particular it hinders improvingthe speciﬁcity of attribute rankings.Class-Entropy+Prior: The LDA-based models do not inherently make use of any...

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

... perform all human 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 ... also be viewed as an extended test of computational theories of human cognition; it is this latter perspective that psychol- ogists find most interesting. Language provides a critical test for ... 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...

Tài liệu Báo cáo khoa học: Multiple enzymic activities of human milk lactoferrin ppt

... because of induction of apoptosis bymultimeric a-lactalbumin.We studied the effects of various subfractions of LF withcatalytic activities on the growth of L929 (mouse ﬁbroblasts)and HL-60 (human ... C.V. & Das,M.R. (1989) Multiple molecular forms of human lactoferrin.Fig. 5. Cytoxicity of LF. (A) Loss of viability (trypan blue staining) of L929 cells during incubation with 10 nMtumor ... analysis of LFLF was puriﬁed and analyzed individually from the milk of each of 30 donors. Electrophoretically and immuno-logically homogeneous LF was obtained by sequentialchromatography of human...

Báo cáo khoa học: "Automatically Learning Measures of Child Language Development" pptx

... evaluation of syn-tactic complexity of non-native speech.Thus, it has been demonstrated that NLP tech-niques can compute existing scores of language pro-ficiency. However, the definition of first -language developmental ... stan-dard measures of language development: (i) MLU,a measure of utterance length, (ii) mean depth of de-pendency parse trees, a measure of syntactic com-plexity similar to that of Yngve (1960), ... earlystopping of Nelder-Mead serves as a sort of smooth-ing in this very small data-set of 7 children.Our improvements over hand-crafted measures of language development show promise. In thecase of individual...

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

... 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 ... 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 ... 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: "Semi-supervised Learning for Natural Language Processing" pptx

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Báo cáo khoa học: "Edit Machines for Robust Multimodal Language Processing" ppt

... into abilanguage representation that pairs words of thestring with words of . A few examples of bilanguage strings are shown in Figure 8. Wecompute the joint n-gram model using a language modeling ... interpretation of multimodal andunimodal commands. The grammar consists of a set of context-free rules. The multimodal as-pects of the grammar become apparent in the ter-minals, each of which is ... inputs. Spoken language (speech-only) understanding systems haveaddressed this issue of lack of robustness of hand-crafted grammars by exploitingclassiﬁcation techniques to extract ﬁllers of a frame...

Báo cáo khoa học: "Latent variable models of selectional preference" potx

... applications of topic models. Section 3 describes the models used in our exper-iments. Section 4 provides details of the experi-mental design. Section 5 presents results for our models on the task of ... top-ical structure of documents can be adapted tolearn probabilistic models of selectional prefer ence.These models are especially effective for estimat-ing plausibility of low-frequency items, ... estimates by integratingknowledge about the frequency of other, similarpredicate-argument pairs. The task thus share some of the nature of language modelling; however, it isa task less amenable...

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