Tài liệu Báo cáo khoa học: "Refined Lexicon Models for Statistical Machine Translation using a Maximum Entropy Approach" pptx

... Refined Lexicon Models for Statistical Machine Translation using a Maximum Entropy Approach Ismael Garc ´ a Varea Dpto. de Inform´atica Univ. de Castilla-La Mancha Campus Universitario s/n 02071 Albacete, ... lexicon models for statistical machine translation by using maximum entropy models. We have been able to obtain a significant better test corpus...

Ngày tải lên: 20/02/2014, 18:20

... DP based search algorithm in de- tail. Finally, experimental results for a bilingual cor- pus are reported. 1.1 Statistical Machine Translation In statistical machine translation, the goal ... Technology D-52056 Aachen, Germany Emaih niessen©informatik, rwth-aachen, de Abstract We introduce a novel search algorithm for statisti- cal machine translation based on...

Ngày tải lên: 20/02/2014, 18:20

... statisti- cal approach to machine translation. Computational Linguistics, 16(2):79–85. Eugene Charniak, Kevin Knight, and Kenji Yamada. 2003. Syntax-based language models for statistical machine translation. ... hierarchical grammars for certain language pairs (Baker et al., 2009). In contrast to the above tree-based translation models, our approach maintains a standard (n...

Ngày tải lên: 20/02/2014, 04:20

... other hand, we are aware of only a small amount of papers investigating new approaches to language modeling for statis- tical machine translation. Traditionally, statistical machine translation ... the 724 we I we should should must remember remind remember that , that that , that you , , , because because because it I they that can can can be say be , because can it they we that...

Ngày tải lên: 31/03/2014, 01:20

... CAGACTAGTGGTTAGAGGAGA GGAATGATGCTGTAGAGACA DENV-1 10482 10661 179 1G4P217 Group 4 ATATGCTGAAACGCGTGAG CATCATGAGACAGAGCGAT DENV-3 104 382 279 1G5P30 Group 5 TTCCAACAAGCAGAACAACAT GCTACAGGCAGCACGGTTT DENV-4 ... 2.31 1G4P217 ATATGCTGAAACGCGTGAG CATCATGAGACAGAGCGAT DENV-3 90.3 ± 1.09 83.9 ± 5.16 1G5P30 TTCCAACAAGCAGAACAACAT GCTACAGGCAGCACGGTTT DENV-4 81.8 ± 5.03 79.0 ± 1.83 Table 4. Comparison of...

Ngày tải lên: 14/02/2014, 19:20

... meanings for those same data. For the sec- ond and third tasks, we train a semantic parser on the automatically disambiguated data, and test on sen- tences from the third, unseen map. For all ... The remain- ing refined landmarks plans are then treated as su- pervised training data for a semantic-parser learner, KRISP (Kate and Mooney, 2006). Once a seman- tic parser is trained,...

Ngày tải lên: 19/02/2014, 19:20

... show that our approach achieves a significant im- provement on both gold standard tree bank and automatically parsed tree pairs against a heuris- tic similarity based method. We further apply ... . Internal-External Lexical Features: These features are motivated by the fact that lexical translation probabilities within the translational equivalence tend to be high, and that of th...

Ngày tải lên: 20/02/2014, 04:20

... general and applicable to many phenomena dealt with by machine translation, is shown. In order to conquer these problems in machine translation, a database of examples (pairs of source phrases, ... et al. 1987; Hirai and Kitahashi 1986), deep semantic analysis is avoided because it is assumed that translations appropriate for given domain can be obtained using domain-specifi...

Ngày tải lên: 20/02/2014, 21:20

... was a para- phrase rather than an identical match to the ref- erence translation. Since only a single reference translation is available for the Europarl data (pre- venting the computation of a ... the domain is fixed, the training and test data match, and a large amount of training data is available. Nevertheless, standard SMT models tend to perform much bet- ter on languages t...

Ngày tải lên: 22/02/2014, 02:20

... in both automatic and human evaluations. 1 Introduction Statistical machine translation (SMT) is complicated by the fact that words can move during translation. If one assumes arbitrary movement ... phrase-based SMT. Phrase-based decoding (Koehn et al., 2003) is a dominant formalism in statistical machine transla- tion. Contiguous segments of the source are trans- lated and plac...

Ngày tải lên: 08/03/2014, 01:20