Tài liệu Báo cáo khoa học: "A Fully Bayesian Approach to Uns

Tài liệu Báo cáo khoa học: "A Fully Bayesian Approach to Unsupervised Part-of-Speech Tagging∗" docx

... Czech Republic, June 2007. c 2007 Association for Computational Linguistics A Fully Bayesian Approach to Unsupervised Part-of-Speech Tagging ∗ Sharon Goldwater Department of Linguistics Stanford ... parameters. We show using part-of-speech tagging that a fully Bayesian approach can greatly improve performance. Rather than estimating a single set of parameters, the Baye...

Ngày tải lên : 20/02/2014, 12:20

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Tài liệu Báo cáo khoa học: "A Ranking-based Approach to Word Reordering for Statistical Machine Translation" doc

... converted to dependency trees using Stanford Parser (Marneffe et al., 2006). We con- vert the tokens in training data to lower case, and re-tokenize the sentences using the same tokenizer from ... sensitive to parser errors; on the other hand, integrated model is forced to use a longer distortion limit which leads to more search errors during decoding time. It is possible to 9...

Ngày tải lên : 19/02/2014, 19:20

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Tài liệu Báo cáo khoa học: "A Feature Based Approach to Leveraging Context for Classifying Newsgroup Style Discussion Segments" pptx

... state of a simple finite-state automaton that only has two states. The automaton is set to initial state (q 0 ) at the top of a message. It makes a transition to state (q 1 ) when it encounters ... is to enable the quality and nature of discussions that occur within an on-line discussion board to be communicated in a summary to a potential new- comer or group moderators. We p...

Ngày tải lên : 20/02/2014, 12:20

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Tài liệu Báo cáo khoa học: "An All-Subtrees Approach to Unsupervised Parsing" pdf

... approach to unsupervised parsing. Unsupervised DOP models assign all possible binary trees to a set of sentences and next use (a large random subset of) all subtrees from these binary trees to ... extends DOP1 to unsupervised parsing (Bod 2006). Its key idea is to assign all unlabeled binary trees to a set of sentences and to next use (in principle) all subtrees from the...

Ngày tải lên : 20/02/2014, 12:20

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Báo cáo khoa học: "A Nonparametric Bayesian Approach to Acoustic Model Discovery" docx

... the future, we plan to explore phonological context and use more ﬂexible topological structures to model acoustic units within our framework. Acknowledgements The authors would like to thank Hung-an ... Computational Linguistics A Nonparametric Bayesian Approach to Acoustic Model Discovery Chia-ying Lee and James Glass Computer Science and Artiﬁcial Intelligence Laboratory Massach...

Ngày tải lên : 07/03/2014, 18:20

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Tài liệu Báo cáo khoa học: A systems biology approach for the analysis of carbohydrate dynamics during acclimation to low temperature in Arabidopsis thaliana doc

... a tool for predicting metabolic engineering strategies to optimize plant freezing tolerance. We conﬁrm that a signiﬁcant improvement in freezing tolerance in plants involves multiple regulatory ... demonstrated this [12]. However, it was shown that fully cold-acclimated transformants of C24 did not differ from the wild type with regard to freezing tolerance and, at the same time, diff...

Ngày tải lên : 14/02/2014, 22:20

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Tài liệu Báo cáo khoa học: "A Method for Measuring Machine Translation Conﬁdence" docx

... Moreover, we also intend to perform a user study on our visualiza- tion prototype to see if it increases the productivity of post-editors. Acknowledgements We would like to thank Christoph Tillmann and ... conﬁdence score, extend it to the sentence level, then apply it to n-best list reranking task to improve MT quality, and ﬁnally design a vi- sualization prototype. We try to a...

Ngày tải lên : 20/02/2014, 04:20

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Tài liệu Báo cáo khoa học: "A Gibbs Sampler for Phrasal Synchronous Grammar Induction" docx

... solu- tion to the modelling and scaling problems of previous approaches. We describe our Bayesian SCFG model in Section 4 and a Gibbs sampler to explore its posterior. We apply this sampler to build ... Figure 4. The update equations are analogous to those used for the Split/Join operator in Figure 3. In order for this operator to be effective we need to allow greater than binar...

Ngày tải lên : 20/02/2014, 07:20

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Tài liệu Báo cáo khoa học: "A Finite-State Model of Human Sentence Processing" docx

... approximation to the joint probability. Lastly, re-ranking of POS sequences is expected to predict reanalysis of lexical categories. This is because re-ranking in the tagger is parallel to reanalysis ... disambiguating word, to com- pared to “on”. 4.3 Probability Re-ranking The probability re-ranking reported in Corley and Crocker (2000) was replicated. The tagger suc- cessfully res...

Ngày tải lên : 20/02/2014, 11:21

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Tài liệu Báo cáo khoa học: "A Limited-Domain English to Japanese Medical Speech Translator Built Using REGULUS 2" doc

... on the other. We propose to demon- strate a prototype system instantiating this architecture, which has been built on top of the Open Source REGULUS 2 platform. The prototype translates spoken ... Translator (Rayner et al., 2000a)). At run-time, the system behaves essentially like a phrasal translator which allows some variation in the input language. This is close in spirit to the appro...

Ngày tải lên : 20/02/2014, 16:20

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