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 thesegrammars. In particular, learning procedures arenot able to take direct advantage of manually an-notated corpora like the Penn Treebank, which arenot marked for derivations ... Proceedings of the ACL-IJCNLP 2009 Conference Short Papers, pages 45–48,Suntec, Singapore, 4 August 2009.c2009 ACL and AFNLPBayesian Learning of a Tree Substitution GrammarMatt Post and Daniel ... grammar. A sample from a DPis a distribution over events in an infinite samplespace (in our case, potential subtrees in a TSG)which takes two parameters, a base measure and a concentration parameter:gX∼...
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Báo cáo khoa học: "Bayesian Learning of Non-compositional Phrases with Synchronous Parsing" pot
... a nutshell. We can trainthis model using a two-dimensional extension of theinside-outside algorithm on bilingual data, assumingevery phrase pair that can appear as a leaf in a parse tree of ... 14627gildea@cs.rochester.eduAbstractWe combine the strengths of Bayesian mod-eling and synchronous grammar in unsu-pervised learning of basic translation phrasepairs. The structured space of a synchronousgrammar is a natural ... usual manner, and a phrase-basedtranslation system is trained.7 ExperimentsThe training data was a subset of 175K sentencepairs from the NIST Chinese-English training data,automatically selected...
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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 inparaphrase generation. Two issues are also raisedin (Zhao and Wang, 2010) about using automaticmetrics: paraphrase ... two cri-teria in paraphrase generation: adequacy measuringthe semantic equivalency and paraphrase rate mea-suring the surface dissimilarity. As they are incom-patible (Zhao and Wang, 2010), ... another language F , each translation couldhave m candidates {e} which may contain potentialparaphrases for es. Our task is to locate the candi-date that best fit in the demands of paraphrasing.2.1...
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Tài liệu Báo cáo khoa học: "Online Learning of Approximate Dependency Parsing Algorithms" potx
... Online Learning of Approximate Dependency Parsing AlgorithmsRyan McDonald Fernando PereiraDepartment of Computer and Information ScienceUniversity of PennsylvaniaPhiladelphia, PA 19104{ryantm,pereira}@cis.upenn.eduAbstractIn ... lead to state -of- the-art accuracyfor English and the best accuracy we know of forCzech and Danish.2 Maximum Spanning Tree ParsingDependency -tree parsing as the search for themaximum spanning ... parser because around 1% of the edges arenon-projective. Since each word may have an ar-bitrary number of parents, we must use precisionand recall rather than accuracy to measure perfor-mance....
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Tài liệu Báo cáo khoa học: "Bayesian Symbol-Refined Tree Substitution Grammars for Syntactic Parsing" pptx
... over a conventional Bayesian TSGparser, and better than state -of- the-art discrim-inative reranking parsers.1 IntroductionSyntactic parsing has played a central role in naturallanguage processing. ... et al., 2010), rather than constituentsyntax parsing.An all-fragments grammar (Bansal and Klein,2010) is another variant of TSG that aims to uti-lize all possible subtrees as rules. It maps ... a TSGto an implicit representation to make the grammartractable and practical for large-scale parsing. Themanual symbol refinement described in (Klein andManning, 2003) was applied to an all-fragmentsgrammar...
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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 byautomatic means. A small parallel corpus can beavailable when native speakers and translators ... AlAst$ArypTask: stem AlAst$ArypChoices ScoreAlAst$Aryp 0.2AlAst$Aryp 0.7AlAst$Aryp 0.8AlAst$Aryp 0.1......Figure 3: Scoring the StemHowever, this approach has several drawbacksthat ... OverviewOur approach is based on the availability of thefollowing three resources:• a small parallel corpus• an English stemmer• an optional unannotated Arabic corpusOur goal is to train an Arabic...
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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
... Structure and function of a regulated archaealtriosephosphate isomerase adapted to high temperature.J Mol Biol 342, 861–875.12 Gayathri P, Banerjee M, Vijayalakshmi A, Azeez S,Balaram H, Balaram ... mutationsMousumi Banerjee1, Hemalatha Balaram2and Padmanabhan Balaram11 Molecular Biophysics Unit, Indian Institute of Science, Bangalore, India2 Molecular Biology and Genetics Unit, Jawaharlal ... inenzymes: a study of triosephosphate isomerase andcomparison with methyl glyoxalsynthase. Adv ProteinChem 66, 315–372.45 Gunasekaran K, Ramakrishnan C & Balaram P (1996)Disallowed Ramachandran...
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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
... M, Hasegawa K, HoritaC & Akera S (1999) A new matrix protein familyrelated to the nacreous layer formation of Pinctadafucata. FEBS Lett 462, 225–229.5 Kono M, Hayashi N & Samata T ... structure–functionrelationship analysis of Prismalin–14 from the prismaticlayer of the Japanese pearl oyster, Pinctada fucata.FEBS J 274, 5158–5166.9 Murayama E, Takagi Y, Ohira T, Davis JG, GreeneMI & Nagasawa H ... byinvertebrates, and has three crystal phases: calcite, ara-gonite and vaterite. Although calcite is the most stablecrystal thermodynamically, many organisms can formmetastable aragonite crystals...
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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
... absorption bands. Heme catabolism byHOs of mammals, pathogenic bacteria, cyanobacteriaand probably insects is considered to have a similarmechanism, because the characteristic absorptionbands of verdoheme ... T, Zhang X, Sun D,Sato M, Sasahara M, Kayama T, Ikeda-Saito M &Yoshida T (2000) Histidine 20, the crucial proximalaxial heme ligand of bacterial heme oxygenase Hmu Ofrom Corynebacterium ... Then, a broad bandappeared at around 660 nm, and was maximal 9–12 minafter initiation of the reaction. The spectral features of the final reaction mixture were analogous, but not iden-tical,...
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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
... 25% of the accessiblesurface area of a monomer contributes to LlPDHdimer formation. Whereas LlPDH and OaPDH have a buried surface area of 5500 A ˚2, TbPDH has a largerinterface surface area ... suite: programs for protein crystallo-graphy.Acta Crystallogr D Biol Crystallogr 50, 760–763.28 Navaza J (1994) Amore – an automated package formolecular replacement. Acta Crystallogr A 50, 157–163.29 ... smaller compound PEA(Fig. 1B) and a water molecule are present and PEXand PEA refined satisfactorily with occupancies of 0.7Table 1. Data and refinement statistics. Values in parentheses pertain...
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Từ khóa: Báo cáo quy trình mua hàng CT CP Công Nghệ NPVNghiên cứu tổ hợp chất chỉ điểm sinh học vWF, VCAM 1, MCP 1, d dimer trong chẩn đoán và tiên lượng nhồi máu não cấpNghiên cứu vật liệu biến hóa (metamaterials) hấp thụ sóng điện tử ở vùng tần số THzGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitĐỒ ÁN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWANNGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN SLIDEPhát triển du lịch bền vững trên cơ sở bảo vệ môi trường tự nhiên vịnh hạ longNghiên cứu, xây dựng phần mềm smartscan và ứng dụng trong bảo vệ mạng máy tính chuyên dùngNghiên cứu tổng hợp các oxit hỗn hợp kích thƣớc nanomet ce 0 75 zr0 25o2 , ce 0 5 zr0 5o2 và khảo sát hoạt tính quang xúc tác của chúngTìm hiểu công cụ đánh giá hệ thống đảm bảo an toàn hệ thống thông tinChuong 2 nhận dạng rui roBT Tieng anh 6 UNIT 2chuong 1 tong quan quan tri rui roGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtTrách nhiệm của người sử dụng lao động đối với lao động nữ theo pháp luật lao động Việt Nam từ thực tiễn các khu công nghiệp tại thành phố Hồ Chí Minh (Luận văn thạc sĩ)QUẢN LÝ VÀ TÁI CHẾ NHỰA Ở HOA KỲ