Báo cáo khoa học: "A Comparison of Loopy Belief Propagation and Dual Decomposition for Integrated CCG Supertagging and Parsing" potx
Báo cáo khoa học: "A Comparison of Loopy Belief Propagation and Dual Decomposition for Integrated CCG Supertagging and Parsing" potx
... LinguisticsA Comparison of Loopy Belief Propagation and Dual Decomposition for Integrated CCG Supertagging and ParsingMichael AuliSchool of InformaticsUniversity of Edinburghm.auli@sms.ed.ac.ukAdam ... su-pertagger and parser, which are then combined us-ing belief propagation (BP) and dual decomposition (DD). We run the algorithms for many iterations, and irrespective of convergence, for BP we ... et al.(2010) and lexicalized CFG parsing by Rush et al.(2010). We apply both techniques to our integrated supertagging and parsing model.4.1 Loopy Belief Propagation Belief propagation (BP)...
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Tài liệu Báo cáo khoa học: "A Comparison of Alternative Parse Tree Paths for Labeling Semantic Roles" ppt
... policy, an agreement of 92.8% was achieved among annotators for the set of start and stop locations for arguments. Examples of semantic role annotations in our corpus for each of the four predicates ... comparative performance of the parse tree paths for each of the five encod-ings, we divided the corpus in to equal-sized training and test sets (50 training and 50 test ex-amples for each of the ... harmonic mean of precision and recall. Our calculation of recall scores represents the best-possible performance of systems using only these types of parse-tree paths. This level of per-formance...
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Báo cáo khoa học: "A Comparison of Syntactically Motivated Word Alignment Spaces" doc
... Zens and Ney (2003) explorethe re-orderings allowed by ITGs, and provide aformulation for the number of structures that canbe built for a sentence pair of size n. ITGs explorealmost all of ... 1)!]permutations for a given tree, where θ stands for ahead node in the tree, and mθcounts θ’s m odifiers.Dependency space is not a subspace of ITG space,as it can create both the forbidden alignments ... intotwo non-terminals, L and R, to represent genera-tors for left modifiers and right modifiers respec-tively. Then split L into¯L and ˆL, for generatorsthat produce straight and inverted left modifiers.We...
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Báo cáo khoa học: "A Comparison of Rule-Invocation Strategies in Context-Free Chart Parsing" pot
... processing of different grammatical formalisms. At the same time it is of course a natural test bed for experiments with various control strategies. Previously a number of comparisons of rule- ... conditions for and ways of predicting new edges 4. This section will therefore in effect constitute a survey of different methods for predicting new edges. 2.1 Top-Down Strategies The principle of ... whose types match the right- hand side of a grammar rule to a phrase of the type of the left-hand side of the rule. To make a reduction possible, all the right-hand-side phrases have to be present....
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Báo cáo khoa học: "A Comparison of Document, Sentence, and Term Event Spaces" potx
... ISF and ITF values are 5.5 and 10.4 higher than IDF. All language models appeared to follow a power law distribution with a slope coefficient of 1.6 for documents and 1.7 for sentences and ... This comparison reflects a previous analysis comprising a random sample of 193 words from a 50 million word corpus of 85,432 news articles (Church and Gale 1999). Church and Gale’s analysis of ... vocabulary size would be 4.1 million for un-stemmed terms and 2.6 million for stemmed terms. Thus, the journals shared 48% and 52% of their vocabulary for unstemmed and stemmed terms respectively....
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Báo cáo khoa học: "A Comparison of Chinese Parsers for Stanford Dependencies" ppt
... only and exclude gen-eration of basic Stanford dependencies (for constituent parsers) and part -of- speech tagging (for dependency parsers).3 ResultsTable 3 tabulates efficiency and performance for ... 3: Performance and efficiency for all parsers on CTB data: unlabeled and labeled attachment scores (UAS/LAS)are for both development and test data sets; parsing times (minutes:seconds) are for ... model (Koo and Collins,2010) for graph-based dependency parsing (McDon-ald and Pereira, 2006). Therefore, we deemed it im-portant to re-evaluate the performance of constituent and dependency...
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Báo cáo khoa học: "A Comparison of Head Transducers and Transfer for a Limited Domain Translation Application" pptx
... entire derivation. Selection of a pair of dependent words w I and v ~ and transducer M I given head words w and v and source and target dependency relations el and r2. (w,w' E V1; v,v' ... and Development Effort The performance comparison above is, of course, not the whole story, particularly since manual effort was required to build the model structures before train- ing for ... prototypes for speech- to-speech translation. In the case of text translation for publishing, it is reasonable to adopt economic measures of the Fei Xia Department of Computer and Information...
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Báo cáo khoa học: "A Comparison of Event Models for Naive Bayes Anti-Spam E-Mail Filtering" potx
... thedocument.From a linguistic point of view, a document ismade up of words, and the semantics of the doc-ument is determined by the meaning of the words and the linguistic structure of the document. TheNaive ... cases, precision and recall were differ-ent over the entire range of the number of selectedwords. In these cases we give the recall and accu-racy for the minimum number of words for whichaccuracy ... highest.Figures 1 and 2 show recall curves for the multi-variate Bernoulli model and three feature rank-ing functions in the multinomial model for Ling-Spam, and Figures 3 and 4 for PU I .Some...
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Báo cáo khoa học: "A comparison of clausal coordinate ellipsis in Estonian and German: Remarkably similar elision rules allow a language-independent ellipsis-generation module" pot
... involve the generation of pro-forms instead of, or in addi-tion to, the ellipsis proper. For example, John laughed, and Mary did, too—a case of VP Ellipsis—includes the pro-form did. Nor do we ... form of a non-finite complement 3 For lack of space, here we cannot go into aspects of word-order variation (both Estonian and German are languages with relatively free word order). For ... framework by Kempen (2009) and its implementation for German and Dutch in ELLEIPO, the elision process is guided by constraints on lemma- and wordform-identity constraints and, to some extent, linear...
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Báo cáo khoa học: "A Comparison and Semi-Quantitative Analysis of Words and Character-Bigrams as Features in Chinese Text Categorization" potx
... b1 and b2 stand for the two bigrams and w stands for any word containing both of them. The overall information quantity is obtained by subtracting the redundancy between each pair of bigrams ... 4.2 Overall Information Quantity of a Fea-ture Space The performance limit of a classification is re-lated to the quantity of information used. So a quantitative metric of the information a ... for them, or for the category. There are also differences in some other as-pects of IR and TC. So it is significant to make a detailed comparison and analysis here on the relative value of...
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Từ khóa: Nghiên 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 tổ chức chạy tàu hàng cố định theo thời gian trên đường sắt việt namGiáo 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 carôtenôitTrả hồ sơ điều tra bổ sung đối với các tội xâm phạm sở hữu có tính chất chiếm đoạt theo pháp luật Tố tụng hình sự Việt Nam từ thực tiễn thành phố Hồ Chí Minh (Luận văn thạc sĩ)Phát hiện xâm nhập dựa trên thuật toán k meansNghiên cứu khả năng đo năng lượng điện bằng hệ thu thập dữ liệu 16 kênh DEWE 5000Sở hữu ruộng đất và kinh tế nông nghiệp châu ôn (lạng sơn) nửa đầu thế kỷ XIXChuong 2 nhận dạng rui roKiểm sát việc giải quyết tố giác, tin báo về tội phạm và kiến nghị khởi tố theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn tỉnh Bình Định (Luận văn thạc sĩ)Quản lý nợ xấu tại Agribank chi nhánh huyện Phù Yên, tỉnh Sơn La (Luận văn thạc sĩ)BT Tieng anh 6 UNIT 2Tranh tụng tại phiên tòa hình sự sơ thẩm theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn xét xử của các Tòa án quân sự Quân khu (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtNguyên tắc phân hóa trách nhiệm hình sự đối với người dưới 18 tuổi phạm tội trong pháp luật hình sự Việt Nam (Luận văn thạc sĩ)Giáo 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 vậtMÔN TRUYỀN THÔNG MARKETING TÍCH HỢPTÁI CHẾ NHỰA VÀ QUẢN LÝ CHẤT THẢI Ở HOA KỲQUẢN LÝ VÀ TÁI CHẾ NHỰA Ở HOA KỲ