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

... Fast Decoding and Optimal Decoding for Machine Translation Ulrich Germann , Michael Jahr , Kevin Knight , Daniel Marcu , and Kenji Yamada Information Sciences Institute Department ... of any statistical machine translation system. The decoder’s job is to find the translation that is most likely according to set of previously learned parameters (and a formula for combin- ing...

Ngày tải lên: 20/02/2014, 18:20

... descendants, say z and y, a PAL expression for the phrase is one of the following forms: <z>( <V>) or <p>( <z>) where ~a> stands for a PAL expression for a phrase ~*. ... composite expressions are constructed only with a binary form of function application. Thus, if z and I/ are well-formed formulas of PAL, so is a form z(y). Expressions of PAL ar...

Ngày tải lên: 21/02/2014, 20:20

... the V forms of {1,1} pairs to be mis- perceived as σ´σ, and for the N forms of {2,2} pairs to be misperceived as ´σσ. 3 Modeling preliminaries We first describe assumptions and notation for models ... (N 0 ). For 8 See (Strogatz, 1994; Hirsch et al., 2004) for introduc- tions to dynamical systems in general, and (Niyogi, 2006) for the type of models considered here. 1022 N&...

Ngày tải lên: 17/03/2014, 00:20

... DM uses morphological informa- tion as well, DF uses frequency information and DMF uses morphological and frequency informa- tion. We evaluated it for all words, and also for words with frequency ... entropy means that the mutual information between the gold and induced tags will be high. If we have a random set of tags the mutual information will be zero and the con- ditional...

Ngày tải lên: 31/03/2014, 20:20

... religions) and struc- tural constraints such as possible date formats for “Birthdate” and “Deathdate”. The rows with sub- script “RH02”in Table 4 shows the performance of this Ravichandran and Hovy ... transitive and latent models are all stand-alone models, they can complement each other in combination as they provide relatively orthogonal sources of informa- tion. To combine th...

Ngày tải lên: 17/03/2014, 22:20

... Weese, and Omar Zaidan. 2009. Joshua: An open source toolkit for parsing-based machine translation. In Proceedings of the Work- shop on Statistical Machine Translation. Percy Liang, Ben Taskar, and ... evidence that hand-annotations are useful for training alignment models (Fraser and Marcu, 2006; Fraser and Marcu, 2007). The ITG gram- mar formalism, the corresponding wor...

Ngày tải lên: 07/03/2014, 22:20

... the source and target language. Systems for “deep” anal- ysis and generation might wish to learn mappings be- tween deep and surface trees (B ¨ ohmov ´ a et al., 2001) or between syntax and semantics ... give a kiss to; misinform ↔ wrongly inform), and head-swapping (float down ↔ descend by floating). Such systematic mismatches should be learned by the model, and used during tr...

Ngày tải lên: 17/03/2014, 06:20

... UNIFICATION GRAMMAR: A FORMALISM FOR MACHINE TRANSLATION Martin Kay Xerox Palo Alto Research Center 3333 Coyote Hill Road Palo Alto California 94304 and CSLI, Stanford Abstract Functional ... Overview A. Machine Translation A classical translating machine stands with one foot on the input text and one on the output. The input text is analyzed by the components of...

Ngày tải lên: 17/03/2014, 19:21

... relations between clauses such as tem- poral, contrast, concession and cause. They are often ambiguous and therefore difficult to translate from one language to another. We discuss several new and translation- oriented experiments ... pro- nouns for grammatical gender agreement (Le Na- gard and Koehn, 2010). On the other hand, inte- grating discourse information, such as discourse...

Ngày tải lên: 23/03/2014, 16:20

... existing approaches for solving this task, before detailing our new proposals in sec- tions 4 and 5. We then report evaluations of the existing and new oracles on machine translation tasks. 2 ... respectively denoted as PB and PB, by the type of the ⊕- operation they consider (Section 3.2). Parame- ters p and r for the LB-4g oracle for N-code were found with grid search an...

Ngày tải lên: 24/03/2014, 03:20