Báo cáo khoa học: "Bayesian Learning of a Tree Substitution Grammar" potx

Báo cáo khoa học: "Bayesian Learning of a Tree Substitution Grammar" potx

Báo cáo khoa học: "Bayesian Learning of a Tree Substitution Grammar" potx

... obvious way to learn these grammars. In particular, learning procedures are not able to take direct advantage of manually an- notated corpora like the Penn Treebank, which are not marked for derivations ... Proceedings of the ACL-IJCNLP 2009 Conference Short Papers, pages 45–48, Suntec, Singapore, 4 August 2009. c 2009 ACL and AFNLP Bayesian Learning of a Tree Substitution Gr...
Ngày tải lên : 17/03/2014, 02:20
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Báo cáo khoa học: "Bayesian Learning of Non-compositional Phrases with Synchronous Parsing" pot

Báo cáo khoa học: "Bayesian Learning of Non-compositional Phrases with Synchronous Parsing" pot

... a nutshell. We can train this model using a two-dimensional extension of the inside-outside algorithm on bilingual data, assuming every phrase pair that can appear as a leaf in a parse tree of ... 14627 gildea@cs.rochester.edu Abstract We combine the strengths of Bayesian mod- eling and synchronous grammar in unsu- pervised learning of basic translation phrase pairs. The s...
Ngày tải lên : 17/03/2014, 02:20
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Báo cáo khoa học: "Joint Learning of a Dual SMT System for Paraphrase Generation" pptx

Báo cáo khoa học: "Joint Learning of a Dual SMT System for Paraphrase Generation" pptx

... lack of automatic met- ric that is capable to measure all the three criteria in paraphrase generation. Two issues are also raised in (Zhao and Wang, 2010) about using automatic metrics: paraphrase ... two cri- teria in paraphrase generation: adequacy measuring the semantic equivalency and paraphrase rate mea- suring the surface dissimilarity. As they are incom- patible (Zhao and Wang, 2010)...
Ngày tải lên : 23/03/2014, 14:20
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Tài liệu Báo cáo khoa học: "Online Learning of Approximate Dependency Parsing Algorithms" potx

Tài liệu Báo cáo khoa học: "Online Learning of Approximate Dependency Parsing Algorithms" potx

... Online Learning of Approximate Dependency Parsing Algorithms Ryan McDonald Fernando Pereira Department of Computer and Information Science University of Pennsylvania Philadelphia, PA 19104 {ryantm,pereira}@cis.upenn.edu Abstract In ... lead to state -of- the-art accuracy for English and the best accuracy we know of for Czech and Danish. 2 Maximum Spanning Tree Parsing Dependency -...
Ngày tải lên : 22/02/2014, 02:20
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Tài liệu Báo cáo khoa học: "Bayesian Symbol-Refined Tree Substitution Grammars for Syntactic Parsing" pptx

Tài liệu Báo cáo khoa học: "Bayesian Symbol-Refined Tree Substitution Grammars for Syntactic Parsing" pptx

... over a conventional Bayesian TSG parser, and better than state -of- the-art discrim- inative reranking parsers. 1 Introduction Syntactic parsing has played a central role in natural language processing. ... et al., 2010), rather than constituent syntax parsing. An all-fragments grammar (Bansal and Klein, 2010) is another variant of TSG that aims to uti- lize all possible subtrees as rul...
Ngày tải lên : 19/02/2014, 19:20
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Báo cáo khoa học: "Unsupervised Learning of Arabic Stemming using a Parallel Corpus" pot

Báo cáo khoa học: "Unsupervised Learning of Arabic Stemming using a Parallel Corpus" pot

... 1999). Usually, entire documents are translated by humans, and the sentence pairs are subsequently aligned by automatic means. A small parallel corpus can be available when native speakers and translators ... AlAst $ Aryp Task: stem AlAst $ Aryp Choices Score AlAst$Aryp 0.2 AlAst$Aryp 0.7 AlAst$Aryp 0.8 AlAst$Aryp 0.1 . . . . . . Figure 3: Scoring the Stem However, this approach has several...
Ngày tải lên : 08/03/2014, 04:22
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Tài liệu Báo cáo khoa học: Structural effects of a dimer interface mutation on catalytic activity of triosephosphate isomerase The role of conserved residues and complementary mutations pptx

Tài liệu Báo cáo khoa học: Structural effects of a dimer interface mutation on catalytic activity of triosephosphate isomerase The role of conserved residues and complementary mutations pptx

... Structure and function of a regulated archaeal triosephosphate isomerase adapted to high temperature. J Mol Biol 342, 861–875. 12 Gayathri P, Banerjee M, Vijayalakshmi A, Azeez S, Balaram H, Balaram ... mutations Mousumi Banerjee 1 , Hemalatha Balaram 2 and Padmanabhan Balaram 1 1 Molecular Biophysics Unit, Indian Institute of Science, Bangalore, India 2 Molecular Biology and Genetics...
Ngày tải lên : 18/02/2014, 11:20
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Tài liệu Báo cáo khoa học: Identification of a novel matrix protein contained in a protein aggregate associated with collagen in fish otoliths pdf

Tài liệu Báo cáo khoa học: Identification of a novel matrix protein contained in a protein aggregate associated with collagen in fish otoliths pdf

... M, Hasegawa K, Horita C & Akera S (1999) A new matrix protein family related to the nacreous layer formation of Pinctada fucata. FEBS Lett 462, 225–229. 5 Kono M, Hayashi N & Samata T ... structure–function relationship analysis of Prismalin–14 from the prismatic layer of the Japanese pearl oyster, Pinctada fucata. FEBS J 274, 5158–5166. 9 Murayama E, Takagi Y, Ohira T, Davis...
Ngày tải lên : 18/02/2014, 17:20
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Tài liệu Báo cáo khoa học: Spectroscopic characterization of a higher plant heme oxygenase isoform-1 from Glycine max (soybean) ) coordination structure of the heme complex and catabolism of heme docx

Tài liệu Báo cáo khoa học: Spectroscopic characterization of a higher plant heme oxygenase isoform-1 from Glycine max (soybean) ) coordination structure of the heme complex and catabolism of heme docx

... absorption bands. Heme catabolism by HOs of mammals, pathogenic bacteria, cyanobacteria and probably insects is considered to have a similar mechanism, because the characteristic absorption bands of verdoheme ... T, Zhang X, Sun D, Sato M, Sasahara M, Kayama T, Ikeda-Saito M & Yoshida T (2000) Histidine 20, the crucial proximal axial heme ligand of bacterial heme oxygenase Hmu O f...
Ngày tải lên : 19/02/2014, 05:20
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Tài liệu Báo cáo khoa học: Crystal structures of a bacterial 6-phosphogluconate dehydrogenase reveal aspects of specificity, mechanism and mode of inhibition by analogues of high-energy reaction intermediates pdf

Tài liệu Báo cáo khoa học: Crystal structures of a bacterial 6-phosphogluconate dehydrogenase reveal aspects of specificity, mechanism and mode of inhibition by analogues of high-energy reaction intermediates pdf

... 25% of the accessible surface area of a monomer contributes to Ll PDH dimer formation. Whereas LlPDH and OaPDH have a buried surface area of  5500 A ˚ 2 , TbPDH has a larger interface surface area ... suite: programs for protein crystallo- graphy. Acta Crystallogr D Biol Crystallogr 50, 760–763. 28 Navaza J (1994) Amore – an automated package for molecular replacement. Acta Cry...
Ngày tải lên : 19/02/2014, 05:20
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