Báo cáo khoa học: "Labeling Documents with Timestamps: Learning from their Time Expressions" pot
Báo cáo khoa học: "Labeling Documents with Timestamps: Learning from their Time Expressions" pot
... 8-14 July 2012.c2012 Association for Computational LinguisticsLabeling Documents with Timestamps: Learning from their Time ExpressionsNathanael ChambersDepartment of Computer ScienceUnited ... Before Timestamp: M < T2. After Timestamp: M > T3. Same as Timestamp: M == TWe also experiment with 7 fine-grained relations:1. One year Before Timestamp: M == T − 12. Two years Before Timestamp: ... in dating documents with unknown origins.de Jong et al. (2005) was among the first to auto-matically label documents with dates. They learnedunigram language models (LMs) for specific time periods...
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Báo cáo khoa học: "Domain Adaptation with Active Learning for Word Sense Disambiguation" pdf
... drawn from BC. We then investigate the utility of addingadditional in-domain training data from WSJ. In thebaseline approach, the additional WSJ examples arerandomly selected. With active learning ... with a naive Bayes classifier,the sense s assigned to an example with featuresf1, . . . , fnis chosen so as to maximize:p(s)nj=1p(fj|s)In our domain adaptation study, we start with ... acorpus-based, supervised learning approach. With this approach, one would need to collect a text cor-pus, in which each ambiguous word occurrence isfirst tagged with its correct sense to serve...
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Báo cáo khoa học: "Lexicon acquisition with a large-coverage unification-based grammar" pot
... unification-basedframework with large-coverage gram-mars and how from their usage lexi-cal entries are extracted. To keep the time and space usage during parsingwithin bounds, information from exter-nal ... Starting from this "standard" tech-nique, we extend it and integrate PoS and mor-phological information, originating from externalresources.We will first describe the method of learning ... are10,000 times less likely than the most likely one),the number of alternatives remains far below thenumber of lexical types.The information that can be derived from thetagger output varies with...
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Tài liệu Báo cáo khoa học: "A Best-First Search Algorithm for Generating Referring Expressions" pot
... description of the intended referent(s), thetarget set. Its elements are to be distinguished from potential distractors (McDonald 1981), thecontrast set, which entails all elements of thecontext ... and fast strategy of incre-mentally selecting ambiguity-reducing attributes from a domain-dependent preference list. With the extension of the algorithm's scope tothe identification of sets ... reducesthe set of potential distractors. The a prioripreference for structurally simpler combinationsconstitutes a strong commitment. It may proveunjustified in view of their actual contribution...
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Tài liệu Báo cáo khoa học: "TOWARDS A DICTIONARY SUPPORT ENVIRONMENT FOR REAL TIME PARSING" potx
... specialist medical terms, the latter has well over 100,000 entries, gathered from machine-readable sources, however, their grammar formalism and the limited grammatical information supplied by ... ul[Tl;X9]tocauseto ~sten with RIVETsI: 28289801<RO154300<rlvet 28289902<02< < 28290005<v< 28290107<0100<TI;X9<NAZV< H XS 28290208<to cause to fasten with 28290318<[*CA]RIVET[*CB][*46}s{*44}{*8A}: ... X9 !< NAZV !< H XS) (8 to cause to fasten with *CA RIVET *CB *46 s *44 *8A : )) Figure I This still leaves the problem of access, from Lisp, to the dictionary entry s-expressions...
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Báo cáo khoa học: 7,8-Diaminoperlargonic acid aminotransferase from Mycobacterium tuberculosis, a potential therapeutic target Characterization and inhibition studies pptx
... buffersolutions: 100 mm Hepes from pH 6.8 to pH 8.2, 100 mmEPPS from pH 7.6 to pH 8.6, and 100 mm TAPS (N-[tris(hydroxymethyl)methyl]-3-aminopropanesulfonic acid) from pH 7.7 to pH 9.1. The E. ... was withdrawn,and the residual activity was measured using the direct en-zymatic assay, as described above. At the same time, theremaining mixture was diluted to a final volume of 100 lL with ... obtained from Fig. S1.Fig. S4. Replot of the slope obtained from Fig. S1against r.Fig. S5. Synthetic scheme for compound 1.This material is available as part of the online article from http://www.blackwell-synergy.comS....
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Báo cáo khoa học: "Semi-Supervised Cause Identification from Aviation Safety Reports" pot
... consistent with our intuition: recall canbe improved with a larger training set, but preci-sion can be hampered when learning from nois-ily labeled data. Overall, these results suggest that learning ... weaugment P with all the unlabeled documents con-taining at least three words from P W . The rea-son we impose the “at least three” requirementis precision: we want to ensure, with a reason-able ... 6Percentage 53.6 33.2 10.3 2.7 0.2 0.1Table 3: Percentage of documents with x labels. with this research independently annotate them with shaping factors, based solely on the defi-nitions presented...
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Báo cáo khoa học: "Inducing Frame Semantic Verb Classes from WordNet and LDOCE" pot
... synsets gathered for a FrameNet more of the verbs from the SemFrame frame areframe name intersects with the set of synsets semantically related to verbs from the FrameNetgathered for a SemFrame frame ... Compared with FrameNet7 Conclusions and Future WorkWe have demonstrated that sets of verbs evokinga common semantic frame can be induced from existing lexical tools. In a head-to-headcomparison with ... basedon semantic criteria. Levin (1993) groups verbs based on ananalysis of their syntactic properties, especially their ability to be expressed in diathesisalternations; her approach reflects...
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Báo cáo khoa học: "How Much Can We Gain from Supervised Word Alignment" potx
... were marked with special tags to distinguish them from regular links, we can selectively remove them and check the impact on MT performance. Figure 1 shows an example sentence with hu-man ... similar corpora. Without it this work would not be possible. 5 Conclusions Our experiments showed that even with human alignment, further improvement in MT quality will be small with the current ... It is interesting to note that from giza-weak to giza-strong, alignment accuracy improves by 15% and the BLEU score improves by 3.2 points. In com-parison, from giza-strong to gold-clean,...
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Báo cáo khoa học: "AUTOMATIC SEMANTIC CLASSIFICATION OF VERBS FROM THEIR" pdf
... needs grow with our understanding of language. A number of current approaches to satisfying the lexical re- quirements for artificial devices do not involve un- supervised learning from examples. ... and the growth of linguistics, and even with the lag their maintenance will be expensive. By contrast, dictionaries constructed by automated learners from real sentences will not lag behind ... performance limitations? Are there learning strategies under which their re- liability is adequate? Section 2.1 describes syntactic constructions stud- ied and demonstrates their relation to the stative...
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Từ khóa: Nghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thốngNghiên 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 SLIDEQuản lý hoạt động học tập của học sinh theo hướng phát triển kỹ năng học tập hợp tác tại các trường phổ thông dân tộc bán trú huyện ba chẽ, tỉnh quảng ninhPhát triển mạng lưới kinh doanh nước sạch tại công ty TNHH một thành viên kinh doanh nước sạch quảng ninhTrả 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 meansSở hữu ruộng đất và kinh tế nông nghiệp châu ôn (lạng sơn) nửa đầu thế kỷ XIXChuong 2 nhận dạng rui roQuản lý nợ xấu tại Agribank chi nhánh huyện Phù Yên, tỉnh Sơn La (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động 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)BÀI HOÀN CHỈNH TỔNG QUAN VỀ MẠNG XÃ HỘIĐổi mới quản lý tài chính trong hoạt động khoa học xã hội trường hợp viện hàn lâm khoa học xã hội việt namMÔN TRUYỀN THÔNG MARKETING TÍCH HỢP