Báo cáo khoa học: "Unsupervised Discovery of Generic Relationships Using Pattern Clusters and its Evaluation by Automatically Generated SAT Analogy Questions" pot
Báo cáo khoa học: "Unsupervised Discovery of Generic Relationships Using Pattern Clusters and its Evaluation by Automatically Generated SAT Analogy Questions" pot
... 0Table 2: Patterns clusters discovery of known relation-ships.stances of relationships of the same type.6 Evaluation Using Known InformationWe also evaluated our pattern clusters using relevantinformation ... small clusters, and appear in many different clusters. Atthe end of this algorithm, we have a set of pattern clusters where for each cluster there are two subsets,core patterns and unconfirmed patterns.3.6 ... us-ing a SAT- like analogy test automatically generated from word pairs captured by our clusters (see belowin this section). In addition, we tested coverage and overlap of pattern clusters with...
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Báo cáo khoa học: "Unsupervised Discovery of Rhyme Schemes" pdf
... and French. The English data is an edited ver-sion of the public-domain portion of the corpus used by Sonderegger (2011), and consists of just under12000 stanzas spanning a range of poets and ... thestanza as a continuation of xk−1. For exam-ple, if xk−1= [dreams, lay, streams], and rk−1 and rk= aba and bcb, the stanza xkshould be generated so that xk1 and xk3rhyme with lay.4.2 ... LearningWe denote our data by X, a set of stanzas. Eachstanza x is represented as a sequence of its line-endwords, xi, . . . xlen(x). We are also given a large setR of all possible rhyme schemes.3If...
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Báo cáo khoa học: "Unsupervised Discovery of Persian Morphemes" docx
... for first and last letters and distinguishing pre-parts and post-parts. Our improved approach has raised the precision, recall and f-measure of discovery by respec-tively %32, %17 and %23. ... part of word, RP is the right part of it, Len (p) is the length of part P (number of characters), freq(p) is the frequency of part P in corpus, WN is the number of words (corpus size) and ... corpus as its input, and a ranked list of probable returning related pairs as its output. It discovers related pairs by looking morphologically for pairs that are both ortho-graphically and semantically...
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Báo cáo khoa học: "Unsupervised Discovery of Domain-Specific Knowledge from Text" pptx
... capability, and sensibility of the proposi-tions using both statistical measures and humanjudges, and compare them to several baselines• we provide a model and a set of propositionsthat can ... actions in the form of predicate-argument structures, and classes as part of the source data. Our task is to identify and extractboth. Since LbR systems must quickly adapt and scale well to new ... atmost.1468tion, and a few additional roles, such as star, team-mate, etc.). We handle this by limiting the number of classes considered to 3 per entity. This constraint re-duces the total number of distinct...
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Báo cáo khoa học: "Unsupervised Learning of Arabic Stemming using a Parallel Corpus" pot
... stemmer (denoted by GOLD). The latter is a state of the art Arabic stem-mer, and was built using rules, suffix and prefix lists, and human annotated text. GOLD is an earlier ver-sion of the stemmer ... animprovement of 22-38% in average pre-cision over unstemmed text, and 96% of the performance of the proprietary stem-mer above.1 IntroductionStemming is the process of normalizing word vari-ations by ... translation model and repeatthe process (see figure 2). However, in practice, in-stead of using a harsh cutoff and only keeping thebest stem, we impose a probability distribution overthe candidate...
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Tài liệu Báo cáo khoa học: Biochemical characterization of human 3-methylglutaconyl-CoA hydratase and its role in leucine metabolism docx
... of both fusion pro-teins was removed by proteolysis and the resulting pro-teins AUHp40 and AUHp30 were again purified by chromatography. Thus, four different pure fractions of AUH could be generated: ... 3, 4, and 5 were isolated by HPLC and used as substrates for AUH. The AUH assay contained 2 mM of the respective isomers of 3-MG-CoA in a total volume of 25 lL. The reaction was started by addition ... crotonyl-CoA,3-hydroxybutyryl-CoA and 3-methylcrotonyl-CoAwere used for the kinetic characterization of AUH.The data are summarized in Table 2.Overexpression of a mutant form of AUH and its activity on (E)-3-MG-1-CoAMutations...
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Tài liệu Báo cáo khoa học: "Semantic Classification of Noun Phrases Using Web Counts and Learning Algorithms" ppt
... invention” and the joining phrase was by ; one of the queries would be: “invention by student” OR “invention by a student” OR “invention by the student” This returns the sum of the number of pages ... advan-tage of the OR operator provided by the search engine. For each joining term, we wanted to sum the number of hits for the term on its own, the term followed by 'a' and the term ... algo-rithms consisted of vectors of web hits obtained using the 14 most frequent joining terms found in the BNC. The next condition used a vector of web hits obtained using the joining terms...
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Báo cáo khoa học: Alpha-oxidation of 3-methyl-substituted fatty acids and its thiamine dependence pptx
... Properties of the enzymatic steps/enzymes of the a-oxidation pathway. The table gives an overview of the present knowledge of some of theproperties of the enzymes involved in the initial degradation of ... synthesis of phytol, geraniol, and nerol.Proceedings of the Chem. Soc. 263–264.42. Ackman, R.G. & Hansen, R.P. (1967) The occurrence of dia-stereoisomers of phytanic and pristanic acids and ... knowncharacteristics of the four main enzymes of the a-oxidationpathway.Stereospecificity of the a-oxidation pathwayPhytol has two chiral centres, one at carbon 7 and one atcarbon 11, both of which are of the...
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Tài liệu Báo cáo khoa học: "Unsupervised Segmentation of Chinese Text by Use of Branching Entropy" pdf
... Proceedings of the COLING/ACL 2006 Main Conference Poster Sessions, pages 428–435,Sydney, July 2006.c2006 ... Computational Linguistics428 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 1 2 3 4 5 6 7 8entropyoffset429430431432 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0.55 0.6 0.65 0.7 0.75...
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Báo cáo khoa học: "Unsupervised Learning of Acoustic Sub-word Units" pot
... minutes of speech is adequate for learningthe acoustic units.2 An Improved and Fast SSS AlgorithmThe improvement of the SSS algorithm of Takami and Sagayama (1992), renamed ML-SSS by Singer and ... pro-posed by Takami and Sagayama (1992), and en-1See http://www.ldc.upenn.edu/Catalog/byType.jsp165hanced by Singer and Ostendorf (1996). Improve-ments in phoneme recognition accuracy using ... then means of its 4-state replacement are µs1= µs− δ = µs4 and µs2= µs+δ = µs3, with δ = λ∗v∗, where λ∗ and v∗are the principal eigenvalue and eigen-vector of Σs and 0 <...
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