Báo cáo khoa học: "Aspect Ranking: Identifying Important Product Aspects from Online Consumer Reviews" doc
Báo cáo khoa học: "Aspect Ranking: Identifying Important Product Aspects from Online Consumer Reviews" doc
... automatically identify important product aspects from online con-sumer reviews. The important aspects areidentified according to two observations: (a)the important aspects of a product are usuallycommented ... 19-24, 2011.c2011 Association for Computational LinguisticsAspect Ranking: Identifying Important Product Aspects from Online Consumer ReviewsJianxing Yu, Zheng-Jun Zha, Meng Wang, Tat-Seng ChuaSchool ... resourcefor both consumers and firms. Consumers com-monly seek quality information from online con-sumer reviews prior to purchasing a product, whilemany firms use online consumer reviews as...
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Báo cáo khoa học: The oxygenase component of phenol hydroxylase from Acinetobacter radioresistens S13 docx
... T3MO, toluene-3-monooxygenase from Pseudomonaspickettii PKO1; T4MO, toluene-4-monooxygenase from Pseudomonasmendocina KR1; Xyl/TMO, xylene/toluene monooxygenase from Pseudomonas stutzeri.Enzymes: ... subunit from Nocardia corallina B-276; AMO Py2, alkenemonooxygenase from Xanthobacter Py2; C1,2O, catechol 1,2 di-oxygenase; MMO M, methane monooxygenase; MMO B, methanemonooxygenase from Methylococcus ... 1,2-dioxygenase isozymes from benzoate-grown cells of Acinetobacterradioresistens. J. Protein Chem. 19, 709–716.44. Neujahr, K.J. & Kjellen, K.G. (1978) Phenol hydroxylase from yeast. Reaction...
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Tài liệu Báo cáo khoa học: "A Ranking-based Approach to Word Reordering for Statistical Machine Translation" doc
... example from every node withmore than one child.3.2 FeaturesFeatures for the ranking model are extracted from source syntax trees. For English-to-Japanese task,we extract features from Stanford ... collect 3,500 Japanese sentences and 3,500English sentences from the web. They come from 916a wide range of domains, such as technical docu-ments, web forum data, travel logs etc. They aremanually ... dependency tree (Kudo and Mat-sumoto, 2002). Different from features for English,we do not use dependency labels because they arenot available from the Japanese parser. Additionally,Japanese function...
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Báo cáo khoa học: N-Glycosylation is important for the correct intracellular localization of HFE and its ability to decrease cell surface transferrin binding pptx
... immunoprecipitated from wild-type or triple-mutant-expressing cells andincubated with PNGase-F. As is shown in Fig. 3C,enzyme treatment of wild-type HFE resulted in theproduction of a lower molecular mass product. ... Overlapping green and red pixels were extracted from the merged image and converted to white.AcknowledgementsThis work was supported by grants from Fundac¸ a˜opara Cieˆ ncia e a Technologia ... westernblotting.The results from these experiments, which are shownin Fig. 2A, indicate that the introduction of single ala-nine mutations at N110, N130 and N234, respectively,resulted in the production of...
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Báo cáo khoa học: "Re-Ranking Models For Spoken Language Understanding Marco Dinarelli University of Trento Italy" potx
... the applicationof partial production rules of the grammar, con-sequently [VP [V]] and [VP [NP]] are validPTFs. Figure 1(b) shows that the number of PTFsderived from the same tree as before ... the fragments of type STF, it can bedefined as:1. if the productions at n1and n2are differentthen ∆(n1, n2) = 0;2. if the productions at n1and n2are thesame, and n1and n2have ... approaches:(A): siis the manual annotation taken from thecorpus;(B) siis the most accurate annotation, in termsof the edit distance from the manual annotation,among the 10-best hypotheses...
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Báo cáo khoa học: " Supervised Ranking in Open-Domain Text Summarization" potx
... most important in making a summary. The number of sentences toextract varied from two to four, depending on thelength of a text. The age of subjects varied from 18to 45. We used 75 texts from ... of a text which they find most important for making a summary. If they agree per-fectly on their judgments, then we will have only10% of a text selected as most important. However,what we found ... selected as most important. However,what we found was that about half of a text weremarked as important, indicating that judgments canvary widely among humans.Curiously, however, Nomoto and...
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Báo cáo khoa học: "Aspect and Discourse Structure: Is a Neutral Viewpoint Required?*" pot
... have an influence on it (Krif~, 1992). Situation Aspects Smith introduces three so- called "conceptual features" of situation aspects which have binary values [-4-], namely stative, ... which have binary values [-4-], namely stative, dura- tire and telic. Five different situation aspects have emerged which are distinguished using these features and certain temporal schemata? ... the ending of a situation is due to the context or our world knowledge. It may be concluded from (1) that we cannot as- sume a perfective viewpoint, because this view in- cludes the end...
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Báo cáo khoa học: "A Ranking Approach to Stress Prediction for Letter-to-Phoneme Conversion" doc
... secondary stress. On Englishphonemes, accuracy drops from 96.2% to 95.3%without it. On letters, it drops from 93.5% to90.0%. The gain from this feature also validatesour ranking framework, ... thestress markers from the stressed syllables in thephonetic forms onto phonemes and letters rep-resenting vowels. For phonemes, the process isstraightforward: we move the stress marker from the beginning ... chosen in ad-vance from observed training patterns.3.2.1 Ranking FormulationFor a substring sequence, s, of length N , our taskis to select the correct output pattern from the setof all...
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Báo cáo khoa học: " New Ranking Algorithms for Parsing and Tagging: Kernels over Discrete Structures, and the Voted Perceptron" docx
... for a sentence from agroup of “candidates” for that sentence. The candi-dates might be enumerated by a number of methods.The experiments in this paper use the topcandi-dates from a baseline ... SCFG.Given a representation, and two structures and, the inner product between the structures can bedefined asThe idea of inner products between feature vectorsis central to learning algorithms ... assuming that it takestime to add feature vectors with non-zero elements, or totake inner products.inner product between two examples is . The run-ning time of the algorithm in figure 1(b) is .This...
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Báo cáo khoa học: "Aspect Extraction through Semi-Supervised Modeling" doc
... (ICDM). Yu, J., Zha, Z. J., Wang, M. and Chua, T. S. 2011. Aspect ranking: identifying important product aspects from online consumer reviews. Proceedings of the 49th Annual Meeting of the Association ... S. and Ester, M. 2011. ILDA: interdependent LDA model for learning latent aspects and their ratings from online product reviews. Proceedings of the Annual ACM SIGIR International conference ... very different from DF-LDA. First of all, we jointly model aspect and sentiment, while DF-LDA is only for topics /aspects. Joint modeling ensures clear separation of aspects from sentiments...
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