Báo cáo khoa học: "Annealing Structural Bias in Multilingual Weighted Grammar Induction∗" doc
Báo cáo khoa học: "Annealing Structural Bias in Multilingual Weighted Grammar Induction∗" doc
... LinguisticsAnnealing Structural Bias in Multilingual Weighted Grammar Induction∗Noah A. Smith and Jason EisnerDepartment of Computer Science / Center for Language and Speech ProcessingJohns Hopkins University, ... improved grammar induction. In Proc.of ACL.D. Klein and C. D. Manning. 2003. Fast exact inference witha factored model for natural language parsing. In NIPS 15.D. Klein and C. D. Manning. 2004. ... we envi-sion that other kinds of structural bias and anneal-ing will be useful in other difficult learning prob-lems where hidden structure is required, includingmachine translation, where the...
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Tài liệu Báo cáo khoa học: "A Gibbs Sampler for Phrasal Synchronous Grammar Induction" docx
... Start-ing with a root non-terminal (z1), rewrite eachfrontier non-terminal (zi) using a rule chosen fromour grammar expanding zi. Repeat until there areno remaining frontier non-terminals. ... |3|e|3))that inference is impractical for real translationdata. Proposed solutions to this problem includeimposing sentence length limits, using small train-ing corpora and constraining the search ... non-terminal andterminal expansions. The former rewrites a non-terminal symbol as a string of two or three non-terminals along with an alignment, specifyingthe corresponding ordering of the...
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Báo cáo khoa học: Conserved structural determinants in three-fingered protein domains pdf
... A,CBa1is the same atom in the N-terminal cysteine residue in cystine B, CAa2is the C-terminal cysteine residue in cystine A and CBa2is the C-terminal cysteine residue in cystine B. A distance ... ionchannels (snake neurotoxins), integrin receptors (den-droaspin), enzymes (fasciculins) or G-protein-coupledreceptors (GPCRs) interacting with muscarinic toxins.Table 1 also includes 16 structures ... for computing the stacking (clusters) of cystines in the three-dimensional structure of proteins. The level ofstacking (clustering) between two cystines was established in the following way:...
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Tài liệu Báo cáo khoa học: "PARSING JAPANESE HONORIFICS IN UNIFICATION-BASED GRAMMAR" pptx
... that "HP+Vinf" forms a unit in some structural level before forming the unit "HP + Vinf + suru', considering the existence of such constructions as "lIP+Vinf+ni+nar-u" ... analysis fails to explain the kind of the elements that can operate as a Vinf element in the pattern, which is automatically explained in the proposed framework as will be shown in section 5. This ... certain famous computational linguist. ° From this, Fig 8.b is unified as its semantic/pragmatic information. The method of specifying necessary lexical information was briefly explained in...
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Tài liệu Báo cáo khoa học: "AUXILIARIES AND CLITICS IN FRENCH UCG GRAMMAR " doc
... aspects of the sign: (v) categorizes signs in lex(ical) and pron(ominal) ones, (iv) in maac(ulin) and fem(inin), in sing(ular) and pl(ural), and introduces values for the 3 persons. (vi) the ... flow of information between functor and argument. This information together with some defined aspects of the information carried by the functor, will be finally inscribed in the resulting concatenated ... the main achievements of our French UCG grammar is to have a single lexieal entry for a verb, nonwithstanding differences in semantics according to 175 tense, free word order, and constrained...
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Tài liệu Báo cáo khoa học: "Decidability and Undecidability in stand-alone Feature Logics" doc
... restrictions imposed to attain decid- ability render it incapable of encoding interesting grammars unaided. But what is the import of such results? This is the question we turn to in the last section ... M' is finite, for its nodes were obtained as a finite union of finite sets. Indeed by making use of lemma 3.1 and the size lemma we can give an upper bound on the size of M' in terms ... symbols in (I). (This is just a mat- ter of counting the number of general constraints in (I), the number of distinct propositional variables in the c~i, and the number of modal operators in the...
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Báo cáo khoa học: "DEALING WITH CONJUNCTIONS IN A MACHINE TRANSLATION ENVIRONMENT" docx
... DEALING WITH CONJUNCTIONS IN A MACHINE TRANSLATION ENVIRONMENT Xiuming Huang Institute of Linguistics chinese Academy of Social Sciences Beijing, China* ABSTRACT A set ... coordinator will be called RIGHT-PHRASE. VI CSDC RULES Constraints for determining the grammatical- ness of constructions involving coordinating con- junctions have been suggested by linguists, ... coordinate structures u- sing the conception of 'derived categories'. These constraints are useful in the investigation of co- ordination phenomena,but in order to process coor- dinating...
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Báo cáo khoa học: "A Framework for Unsupervised Natural Language Morphology Induction" docx
... -/i / blaming roaming solving -/i / showing sowing sawing -/i / singing ringing Table 1: A few inflection classes of the Eng-lish verb paradigm pheme boundaries within the same ... lattice in Figure 2 covers: 1) The productive Spanish inflection class for adjectives, a.as.o.os, covering the four cells feminine singular, feminine plural, masculine singular, and masculine ... concept of an inflection class in chapter 16 of The Handbook of Morphology (1998). In his ter-minology, a language with inflectional morphol-ogy contains lexemes which occur in a variety of...
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Báo cáo khoa học: "A Bayesian Approach to Unsupervised Semantic Role Induction" docx
... first model induces these clusteringsindependently for each predicate, exploit-ing the Chinese Restaurant Process (CRP)as a prior. In a more refined hierarchicalmodel, we inject the intuition ... clusters.Each move involves (1) choosing an argument keyand (2) deciding on a cluster to reassign it to. Thisis done by considering all clusters (including cre-ating a new one) and choosing the most ... and Dan Klein. 2011.Learning dependency-based compositional seman-tics. In ACL: HLT.Dekang Lin and Patrick Pantel. 2001. DIRT – discov-ery of inference rules from text. In KDD.Ding Liu and...
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Báo cáo khoa học: "Alternative Approaches for Generating Bodies of Grammar Rules" docx
... approach(Klein and Manning, 2003) consists in adding headinformation to dependents; words tagged with VBPare then split into classes according to the words thatdominate them in the training corpus.Some ... grammatical frame-work, PCW-grammars, on transforming automatato PCW-grammars, and on parsing with PCW-grammars. Section 4 explains the starting point ofthis process: learning automata, and Section ... tree-buildingstep. We now explain how these two steps can becarried out in one go. Parsing with PCW-grammarscan be viewed as parsing with PCF grammars. Themain difference is that in PCW-parsing derivationsfor...
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