Tài liệu Báo cáo khoa học: "A Discriminative Syntactic Word Order Model for Machine Translation" pdf

... Association for Computational Linguistics A Discriminative Syntactic Word Order Model for Machine Translation Pi-Chuan Chang ∗ Computer Science Department Stanford University Stanford, CA 94305 pichuan@stanford.edu Kristina ... 94305 pichuan@stanford.edu Kristina Toutanova Microsoft Research Redmond, WA kristout@microsoft.com Abstract We present a global discriminative stati...

Ngày tải lên: 20/02/2014, 12:20

... signal is formula AXc AGb AF(AX(a /x b) ) sense for all paths, at the next state c is true for all paths, globally b is true for all paths, eventually there is a state from which, for all ... mapping holds, then clearly we are not forced to augment the standard models for CTL in order to interpret them (although this route might be desirable for other reasons). Rath...

Ngày tải lên: 20/02/2014, 19:20

... Summarization SSL. of the models. As more labeled data is introduced, Hybrid SVM models’ performance increase dras- tically, even outperforming the state-of-the art MRR performance on TREC04 datasets ... variation of Collins rules, hypernym extraction via Lesk word disambigua- tion (Lesk, 1988), regular expressions for wh- word indicators, n-grams, word- shapes(capitals), etc. Extracte...

Ngày tải lên: 20/02/2014, 07:20

... of different orders are memorized to al- low access to arbitrary orders. To store N -gram counts, we use three tables for word ids, counts and pointers. We share the same tables for word ids and ... string for N-gram data row. When an N-gram is traversed, binary search is performed N times. If each word id corresponds to its node position in the unigram table, we can remove the w...

Ngày tải lên: 20/02/2014, 09:20

... L before , L target , and L after , which correspond to the parts of the list that is before, at, and after the target word, respectively. Initialize chunk-open to FALSE for L sub in {L before , ... especially the case for non-verbal target words and when the head of the argument was above the target word in the dependency tree. To be usable, this approach would require some sort of tr...

Ngày tải lên: 20/02/2014, 12:20

... fully instantiated forms for fixed and body- anchored signs, however others are only partially in- stantiated forms for directional verbs and forms of modulation of lexical items. For nominal oriented signs, ... signs must satisfy in order to constitute a valid sign sequence. These constraints enforce ap- propriate sign order, for example realising a topic comment ordering signs fo...

Ngày tải lên: 20/02/2014, 16:20

... content words. Furthermore, it allows for con- trol annotations in the grammar and uses a special inter- preter for unification, rather than directly PROLOG. See http://www.cs.bgu.ac.11/surge/. form ... specifies linguistic and non-linguistic real- izations for the dialogue acts in the dialogue plan. • A SPEECH SYNTHESIS MODULE, which adds infor- mation for Speech. • A GESTURE ASSIGNM...

Ngày tải lên: 22/02/2014, 02:20

... (lexicalized and given syntactic form) without any form of coor- dinative ellipsis. The resulting non-elliptical structures are input to ELLEIPO, which computes and executes options for coordinative ... the right-hand conjunct may get marked for elision, depending on the specific conditions listed in the Appendix. • Testing for BCR. ELLEIPO checks — word- by -word, going from right...

Ngày tải lên: 22/02/2014, 02:20

... Translation, a considerable ef- fort has also been made to include deeper linguis- tic information in automatic evaluation metrics, both syntactic and semantic (see Section 2 for de- tails). However, ... independently before averaging in order to assign equal relevance to the four possible contexts (test beds) 312 reliable for estimating the translation quality at the segment level,...

Ngày tải lên: 20/02/2014, 07:20

... overview of methods for com- bining classifiers and present empirical results for word sense disambiguation. Xu et al (1992) and Florian et al (2002) consider three approaches for combining classifiers. ... the expense of a loss of precision. Overall, At-Least-N for intermediate ranges of N (N=5 for English and Chinese and N=2 for Arabic) performs best where the moderate loss in p...

Ngày tải lên: 20/02/2014, 12:20