Báo cáo khoa học: "Japanese Dependency Structure Analysis Based on Maximum Entropy Models" doc

... (Ratnaparkhi, 1997) is considered to be one of the most accurate parsers in English. Its probability estimation is based on the maximum entropy models. We also use the maximum entropy model. This ... Proceedings of EACL '99 Japanese Dependency Structure Analysis Based on Maximum Entropy Models Kiyotaka Uchimoto t Satoshi Sekine$ Hitoshi Isahara t tCommunications Research Laboratory Ministry ... "futures" for a maximum entropy formulation of our dependency problem between bunsetsus. A maximum entropy solution to this, or any other similar problem al- lows the computation of P(f[h)...

Báo cáo khoa học: "Deverbal Compound Noun Analysis Based on Lexical Conceptual Structure" potx

... Deverbal Compound Noun Analysis Based on Lexical Conceptual Structure Koichi Takeuchi Kyo KageuraHuman and Social Information Research DivisionNational Institute of Informatics2-1-2 ... aprincipled approachfor analysis of semantic relations betweenconstituents in compound nouns based on lexical semantic structure. One of thedifﬁculties of compound noun analysis isthat the mechanisms ... sytactic analysis. 2.2 LCS -based Disambiguation ModelWe assume that the discrimination between argu-ment and adjunct relations can be done by the com-bination of the LCS (we call TLCS) on the...

Báo cáo khoa học: "Japanese Named Entity Recognition based on a Simple Rule Generator and Decision Tree Learning" pdf

... ORGANIZATION,0,0.*:*:location-name,SHI-NAI:*:common-noun-> LOCATION,0,1.*:*:location-name,*:*:common-noun-> ORGANIZATION,0,0.The ﬁrst rule extracts CNN as an organization.The second rule ... IntroductionNamed entity (NE) recognition is a task inwhich proper nouns and numerical informa-tion in a document are detected and classi-ﬁed into categories such as person, organiza-tion, location, ... recognition is atask in which proper nouns and nu-merical information in a document aredetected and classiﬁed into categoriessuch as person, organization, location,and date. NE recognition plays...

Tài liệu Báo cáo khoa học: "Predicate Argument Structure Analysis using Transformation-based Learning" pdf

... phrases (BP). A BP usuallyconsists of one or more content words and zero,162Figure 1: Graph expression for PASone, or more than one functional words. Syn-tactic dependency between bunsetsu ... Asian Conference on Language, Informationand Computation (PACLING).Kouichi Hashida. 2005. Global document annotation(GDA) manual. http://i-content.org/GDA/.Lynette Hirschman, Patricia Robinson, ... 2010 Conference Short Papers, pages 162–167,Uppsala, Sweden, 11-16 July 2010.c2010 Association for Computational LinguisticsPredicate Argument Structure Analysis using Transformation -based LearningHirotoshi...

Tài liệu Báo cáo khoa học: "Japanese Dependency Parsing Using Co-occurrence Information and a Combination of Case Elements" pdf

... Previ-ous work on Japanese dependency analysis has as-sumed that all the dependency relations are inde-pendent of one another. It is therefore necessaryto also consider such a constraint as ... meth-ods: information about dependency rela-tions among the case elements of a verb,and information about co-occurrence re-lations between a verb and its case ele-ment. This information can be collectedfrom ... International Conference on Computational Linguistics and 44th Annual Meeting of the ACL, pages 833–840,Sydney, July 2006.c2006 Association for Computational LinguisticsJapanese Dependency...

Báo cáo khoa học: "Japanese Dependency Parsing Using Sequential Labeling for Semi-spoken Language" ppt

... growthof Web 2.0. Such documents do not use controlledwritten language and contain ﬁllers and emoticons.This implies that analyzing such documents is difﬁ-cult for conventional parsers.This paper ... in the tree structure. Conventional parsershave forced such independent units to modify otherunits.Documents published by end users (e.g., blogs)are increasing on the Internet along with the ... of documents directly publishedby end users is increasing along with thegrowth of Web 2.0. Such documents of-ten contain spoken-style expressions, whichare difﬁcult to analyze using conventionalparsers....

Báo cáo khoa học: "Efﬁcient sentence retrieval based on syntactic structure" pdf

... both content -based and structure- based similarity measures. To this end, we haveto evaluate the algorithms in real application envi-ronments (e.g. information retrieval and machinetranslation) ... COLING/ACL 2006 Main Conference Poster Sessions, pages 399–406,Sydney, July 2006.c2006 Association for Computational LinguisticsEfﬁcient sentence retrieval based on syntactic structure Ichikawa ... is becauseconventional retrieval techniques exploit only sim-ilarity of surface information such as words andparts-of-speech, but not more abstract informationsuch as syntactic structures.He...

Tài liệu Báo cáo khoa học: "Cross-lingual Parse Disambiguation based on Semantic Correspondence" pptx

... rela-tions (corresponding to quantiﬁers), or a predicate-argument structure which is composed of several re-lations. During alignment, we only consider non-atomic EPs, as quantiﬁers should be considered ... Association for Computational Linguistics, pages 125–129,Jeju, Republic of Korea, 8-14 July 2012.c2012 Association for Computational LinguisticsCross-lingual Parse Disambiguation based on Semantic ... composed of re-lations. Each line in Figure 1 corresponds to oneEP. Relations are the elementary building blocks ofthe EDG, and loosely correspond to words of thesurface string. EPs consist either...

Tài liệu Báo cáo khoa học: "Predicting Unknown Time Arguments based on Cross-Event Propagation" ppt

... 4 Approaches Based on these motivations we have developed two approaches to conduct cross-event propaga-tion. Section 4.1 below will describe the rule- based approach and section 4.2 will present ... “newspaper” and “Moni-tor”. However, there is only one positive sample matching these conditions in the training corpora, and thus the Maximum Entropy classifier as-signed a very low confidence score ... learning framework respectively. 4.1 Rule based Prediction The easiest solution is to encode rules based on constraints from event arguments and positions of two events. We design three types...

Tài liệu Báo cáo khoa học: "Generating with a Grammar Based on Tree Descriptions: a Constraint-Based Approach" pptx

... thatmodels be searched for that satisfy a conjunctionof disjunctions (rather than simply a conjunction)of lexical tree descriptions.The constraint based encoding of this problempresented in ... the generation process.In constraint programming, the solutions to aconstraint satisfaction problem (CSP) are foundby alternating propagation with distribution steps.Propagation is a process ... descrip-tion and is the semantic representation associ-ated with .Tree descriptions. A tree description is a con-junction of literals that specify either the labelof a node or the position of...

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