Báo cáo khoa học: "Morphological Disambiguation by Voting Constraints" ppt

Tài liệu Báo cáo khoa học: "Sentence Disambiguation by a Shift-Reduce Parsing Technique" pot

Tài liệu Báo cáo khoa học: "Sentence Disambiguation by a Shift-Reduce Parsing Technique" pot

... Sentence Disambiguation by a Shift-Reduce Parsing Technique* Stuart M. Shieber Abstract Artificial Intelligence ... system that. given a nondeterministic grammar, forces disambiguation in just the manner Marcus rejected (i.e. t .hrough general rules}; it thereby exhibits the same preference behavior that psycbolin- ... sentences. It, does this by building just one parse tree ra...

Ngày tải lên: 21/02/2014, 20:20

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Tài liệu Báo cáo khoa học: "Faster Parsing by Supertagger Adaptation" pptx

Tài liệu Báo cáo khoa học: "Faster Parsing by Supertagger Adaptation" pptx

... mul- tiple passes over a sentence. If a spanning analy- sis cannot be found by the parser, the number of lexical categories supplied by the supertagger is increased. The supertagger-parser interaction ... example sentence and the sets of categories assigned by the supertagger. The first category in each column is correct and the categories used by the parser are marked in bold. The cor...

Ngày tải lên: 20/02/2014, 04:20

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Tài liệu Báo cáo khoa học: "Tagging English by Path Voting Constraints" pptx

Tài liệu Báo cáo khoa học: "Tagging English by Path Voting Constraints" pptx

... directed acyclic graph 2 Tagging by Path Voting Constraints We assume that sentences are delineated and that each token is assigned all possible tags by a lexicon or by a morphological analyzer. ... constraint rules vote on sequences of matching tokens and tags. Disambiguation of all tokens in a sentence is performed at the very end by selecting tags that appear on the pa...

Ngày tải lên: 20/02/2014, 18:20

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Tài liệu Báo cáo khoa học: Calcium signalling by nicotinic acid adenine dinucleotide phosphate (NAADP) doc

Tài liệu Báo cáo khoa học: Calcium signalling by nicotinic acid adenine dinucleotide phosphate (NAADP) doc

... rarely operates in isolation. Rather the resultant Ca 2+ signals evoked by this molecule are often boos- ted by Ca 2+ release by RyRs, InsP 3 Rs or both. Inter- actions between different Ca 2+ release ... from [22]. M. Yamasaki et al. Calcium signalling by NAADP FEBS Journal 272 (2005) 4598–4606 ª 2005 FEBS 4599 Ca 2+ release channels modulated by either InsP 3 or cADPR that partici...

Ngày tải lên: 20/02/2014, 01:20

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Tài liệu Báo cáo khoa học: "Finding Hedges by Chasing Weasels: Hedge Detection Using Wikipedia Tags and Shallow Linguistic Features" doc

Tài liệu Báo cáo khoa học: "Finding Hedges by Chasing Weasels: Hedge Detection Using Wikipedia Tags and Shallow Linguistic Features" doc

... classified by S → weasel if wpw(S) > σ (4) where σ is an arbitrary threshold used to control the precision/recall balance and wpw(S) is the sum of scores over all words in S, normalized by the ... subjectivity (see Pang & Lee (2008) for an overview). However, even opin- ions have to be backed up by facts to be effective as arguments. Distinguishing facts from fiction re- quires to...

Ngày tải lên: 20/02/2014, 09:20

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Tài liệu Báo cáo khoa học: "Acceptability Prediction by Means of Grammaticality Quantification" doc

Tài liệu Báo cáo khoa học: "Acceptability Prediction by Means of Grammaticality Quantification" doc

... grammatical. In this conception, a language (be it natural or not) is produced (or generated) by a grammar by means of a specific mechanism, for example derivation. However, when no structure can be ... the grammaticality indices obtained from PG formalism and the acceptability judgements measured by means of a psycholinguistic analysis. The results show that the derived grammatical- ity...

Ngày tải lên: 20/02/2014, 11:21

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Tài liệu Báo cáo khoa học: "At-Least-N Voting Improves Recall for Extracting Relations" pdf

Tài liệu Báo cáo khoa học: "At-Least-N Voting Improves Recall for Extracting Relations" pdf

... classifiers by using a new voting scheme from a committee of classifiers. There are a plethora of algorithms for combining classifiers (e.g. see (Xu et al., 1992)). A widely used approach is a majority voting ... section, we will describe the different voting schemes we ex- plored in our work. 3 At-Least-N Voting We are specifically interested in NLP tasks char- acterized by asymmetri...

Ngày tải lên: 20/02/2014, 12:20

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Tài liệu Báo cáo khoa học: "Question Answering by Lexical Fabric and External Resources" ppt

Tài liệu Báo cáo khoa học: "Question Answering by Lexical Fabric and External Resources" ppt

... solve this problem by using G q and Sto increase terms found in as follow: C —q  —q Given w k E C q : • if w k E G q , increase w k by a; • if w k e S q , increase w k by 13; where 0 < ... named QUALIFIER, adopts the by now more or less standard QA system architec- ture as shown in Figure 1. It includes modules to perform question analysis, query formulation by using extern...

Ngày tải lên: 22/02/2014, 02:20

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Tài liệu Báo cáo khoa học: "POS Disambiguation and Unknown Word Guessing with Decision Trees" pot

Tài liệu Báo cáo khoa học: "POS Disambiguation and Unknown Word Guessing with Decision Trees" pot

... POS. The ambiguity is resolved by eliminating the tag(s) with different POS than the one returned by the decision tree. The POS of an unknown word is guessed by traversing the decision tree ... 'decision' being made by the specific node. Moreover, when a node is not a leaf, it also contains an ordered list of values corresponding to a particular feature tested by t...

Ngày tải lên: 22/02/2014, 03:20

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Tài liệu Báo cáo khoa học: "Lexical Disambiguation Using Constraint Handling In Prolog " pdf

Tài liệu Báo cáo khoa học: "Lexical Disambiguation Using Constraint Handling In Prolog " pdf

... algorithm generates sense combinations by go- ing through the sense definitions for each word one by one. For example, a sense combination can be called by taking the 8th sense of bank (call ... primitives, and any particular word-sense is defined by a set of these primitives. Several researchers have been experimented with lexical disambiguation using MRDs, including [Lesk,...

Ngày tải lên: 22/02/2014, 10:20

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