Báo cáo khoa học: "Biographies, Bollywood, Boom-boxes and Blenders: Domain Adaptation for Sentiment Classification" potx

Báo cáo khoa học: "Biographies, Bollywood, Boom-boxes and Blenders: Domain Adaptation for Sentiment Classification" potx

Báo cáo khoa học: "Biographies, Bollywood, Boom-boxes and Blenders: Domain Adaptation for Sentiment Classification" potx

... Association for Computational Linguistics Biographies, Bollywood, Boom-boxes and Blenders: Domain Adaptation for Sentiment Classification John Blitzer Mark Dredze Department of Computer and Information ... trained without adaptation, while the gold standard is an in -domain classifier trained on the same domain as it is tested. Figure 1 gives accuracies for all pairs o...
Ngày tải lên : 08/03/2014, 02:21
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Báo cáo khoa học: "A Non-negative Matrix Tri-factorization Approach to Sentiment Classification with Lexical Prior Knowledge" potx

Báo cáo khoa học: "A Non-negative Matrix Tri-factorization Approach to Sentiment Classification with Lexical Prior Knowledge" potx

... un- available and therefore information gain cannot be practically computed. Figure 3 and Figure 4 show results for Lotus and Amazon datasets re- spectively and are representative of performance on ... sen- timent, and (G 0 ) i2 = 1 for negative sentiment. As with F 0 , one can also use soft sentiment labeling for documents, though our experiments are con- ducted with hard...
Ngày tải lên : 30/03/2014, 23:20
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Báo cáo khoa học: "Hierarchical Reinforcement Learning and Hidden Markov Models for Task-Oriented Natural Language Generation" ppt

Báo cáo khoa học: "Hierarchical Reinforcement Learning and Hidden Markov Models for Task-Oriented Natural Language Generation" ppt

... alignment and consistency (Picker- ing and Garrod, 2004; Halliday and Hasan, 1976) on the one hand, and variation (to improve text quality and readability) on the other hand (Belz and Reiter, 2006; ... consis- tency (Halliday and Hasan, 1976), and variation, which influence people’s assessment of discourse (Levelt and Kelter, 1982) and generated output (Belz and Reiter, 2...
Ngày tải lên : 07/03/2014, 22:20
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Báo cáo khoa học: "Combining EM Training and the MDL Principle for an Automatic Verb Classification incorporating Selectional Preferences" pot

Báo cáo khoa học: "Combining EM Training and the MDL Principle for an Automatic Verb Classification incorporating Selectional Preferences" pot

... Figure 2. Both for 10 and 20 frames, the results are better for 50 than for 20 clusters, with small differences between 10 and 20 frames. The results vary between -11.850 and -10.620 (for 5-50 iterations), ... classifications. For example, Siegel and McKeown (2000) used several machine learn- ing algorithms to perform an automatic aspectual classification of English verbs into...
Ngày tải lên : 08/03/2014, 01:20
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Báo cáo khoa học: "Test Collection Selection and Gold Standard Generation for a Multiply-Annotated Opinion Corpus" potx

Báo cáo khoa học: "Test Collection Selection and Gold Standard Generation for a Multiply-Annotated Opinion Corpus" potx

... the ACL 2007 Demo and Poster Sessions, pages 89–92, Prague, June 2007. c 2007 Association for Computational Linguistics Test Collection Selection and Gold Standard Generation for a Multiply-Annotated ... Introduction Opinion information processing has been studied for several years. Researchers extracted opinions from words, sentences, and documents, and both rule-based and...
Ngày tải lên : 08/03/2014, 02:21
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Báo cáo khoa học: Proteoglycans in health and disease: new concepts for heparanase function in tumor progression and metastasis pptx

Báo cáo khoa học: Proteoglycans in health and disease: new concepts for heparanase function in tumor progression and metastasis pptx

... health and disease: new concepts for heparanase function in tumor progression and metastasis Uri Barash 1 , Victoria Cohen-Kaplan 1 , Ilana Dowek 2 , Ralph D. Sanderson 3 , Neta Ilan 1 and Israel ... enzymatic activity-depen- dent and -independent functions mediated by defined protein domains and splice variants, and cross-talk U. Barash et al. New concepts for heparanase funct...
Ngày tải lên : 15/03/2014, 23:20
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Báo cáo khoa học: "Learning to Transform and Select Elementary Trees for Improved Syntax-based Machine Translations" ppt

Báo cáo khoa học: "Learning to Transform and Select Elementary Trees for Improved Syntax-based Machine Translations" ppt

... pseudo nodes and hyper edges to the forest, which makes the forest even denser and harder for nav- igation and search. As trees thrive in the search space, especially with the pseudo nodes and edges ... Translations Bing Zhao † , and Young-Suk Lee † , and Xiaoqiang Luo † , and Liu Li ‡ IBM T.J. Watson Research † and Carnegie Mellon University ‡ {zhaob, ysuklee, xiaoluo}@us.i...
Ngày tải lên : 17/03/2014, 00:20
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Báo cáo khoa học: "Integrating Pattern-based and Distributional Similarity Methods for Lexical Entailment Acquisition" doc

Báo cáo khoa học: "Integrating Pattern-based and Distributional Similarity Methods for Lexical Entailment Acquisition" doc

... rela- tions for Information Extraction (IE) and QA, as in (Riloff and Shepherd, 1997; Ravichandran and Hovy, 2002; Yangarber et al., 2000). Patterns identify rather specific and informa- tive ... patterns we used for entailment ac- quisition based on (Hearst, 1992) and (Pantel et al., 2004). Capitalized terms indicate variables. pl and sg stand for plural and singular...
Ngày tải lên : 17/03/2014, 04:20
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Báo cáo khoa học: "Resolving Translation Ambiguity and Target Polysemy in Cross-Language Information Retrieval" potx

Báo cáo khoa học: "Resolving Translation Ambiguity and Target Polysemy in Cross-Language Information Retrieval" potx

... dictionaries and selection strategies like select all (Hull and Grefenstette, 1996; Davis, 1997), randomly select N (Ballesteros and Croft, 1996; Kwok 1997) and select best N (Hayashi, Kikui and Susaki, ... performance and domain shift of corpus are major problems of these two approaches. Hybrid approaches (Ballesteros and Croft, 1998; Bian and Chen, 1998; Davis 1997...
Ngày tải lên : 17/03/2014, 07:20
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Báo cáo khoa học: "Combining Word-Level and Character-Level Models for Machine Translation Between Closely-Related Languages" ppt

Báo cáo khoa học: "Combining Word-Level and Character-Level Models for Machine Translation Between Closely-Related Languages" ppt

... MK–EN, and Pr(b|e) and Pr(e|b) for EN–BG, where m, e, and b stand for a Macedonian, an English, and a Bulgarian word. Then, following (Callison-Burch et al., 2006; Wu and Wang, 2007; Utiyama and ... MK–EN and an EN–BG bitext. First, we induced IBM-model-4 word alignments for MK–EN and EN–BG, from which we extracted four conditional lexical translation probabilities: Pr(m...
Ngày tải lên : 23/03/2014, 14:20
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