Báo cáo khoa học: "Computing Lattice BLEU Oracle Scores for Machine Translation" potx

... Association for Computational Linguistics, pages 120–129, Avignon, France, April 23 - 27 2012. c 2012 Association for Computational Linguistics Computing Lattice BLEU Oracle Scores for Machine Translation Artem ... 4 and we use BLEU as a synonym for 4 -BLEU. BLEU is defined for a pair of corpora, but, as an oracle decoder is working at the sentence-level, it should r...

Ngày tải lên: 24/03/2014, 03:20

... Computer Science University of Southern California Stanford University 4676 Admiralty Way, Suite 1001 Stanford, CA 94305 Marina del Rey, CA 90292 jahr@cs.stanford.edu germann,knight,marcu,kyamada @isi.edu Abstract A ... Fast Decoding and Optimal Decoding for Machine Translation Ulrich Germann , Michael Jahr , Kevin Knight , Daniel Marcu , and Kenji Yamada Information Sciences Institute De...

Ngày tải lên: 20/02/2014, 18:20

... Todd Ward, and Wei- Jing Zhu. 2002. BLEU: A method for automatic evaluation of machine translation. In Proceedings of the Annual Conference of the Association for Com- putational Linguistics. Andreas ... Association for Computational Linguistics Discriminative Modeling of Extraction Sets for Machine Translation John DeNero and Dan Klein Computer Science Division University of Cal...

Ngày tải lên: 07/03/2014, 22:20

... statistical formalisms (limited to isomorphic trees), synchronous TSG allows local distortion of the tree topol- ogy. We reformulate it to permit dependency trees, and sketch EM/Viterbi algorithms for ... naturally extend to train on pairs of forests (including packed forests obtained by chart pars- ing). The correct tree is presumed to be an element of the forest. This makes it possible to...

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 ... parts: a formal description of the relevant facts about the language, and an interpreter of the formalism. The formal description is data whereas the interpreter is program. The formal d...

Ngày tải lên: 17/03/2014, 19:21

... 46–51, Portland, OR, USA 19-24 June 2011. c 2011 Association for Computational Linguistics Disambiguating Temporal–Contrastive Discourse Connectives for Machine Translation Thomas Meyer Idiap Research Institute ... statistical machine translation sys- tems. 1 Introduction The probabilistic phrase-based models used in sta- tistical machine translation (SMT) have been im- proved by i...

Ngày tải lên: 23/03/2014, 16:20

... often used criteria are, for example, F-Measure for parsing, mean average precision for ranked retrieval, and BLEU or multi-reference word error rate for statistical machine translation. The ... NIST and BLEU are accuracy measures, and thus larger values reflect better translation qual- ity. Note that NIST and BLEU scores are not addi- tive for different sentences, i.e. the...

Ngày tải lên: 23/03/2014, 19:20

... interlingual representation, namely the combination after - before. (13) has the value contain - before, and (Ib) the value before - before. In (15) the situation is different: here, the time ... to yield a formula, e.g., W(yesterday(1))=1 iff the interval I is a subset of yesterday. 35 (iii) Temporal relations that take two intervals to yield a formula, e.g., W(beforeil,J))=1...

Ngày tải lên: 24/03/2014, 05:21

... Similarly, full test set scores are ob- tained by accumulating counts over all hypothesis and reference pairs. The BLEU scores are between and , higher being better. Often BLEU scores are reported ... 41.88 51.45 68.62 BLEU tuned 42.12 51.72 68.59 MTR tuned 54.08 38.93 71.42 Table 1: Mixed-case TER and BLEU, and lower-case METEOR scores on Arabic NIST MT03+MT04. Arabic test TER...

Ngày tải lên: 31/03/2014, 01:20

... of the World-Wide Web (WWW) as information source, it has become rou- tine for Internet users to access textual data written in foreign languages. In Japan, for example, a dozen or so inexpensive ... systems based on these formalisms, on the other hand, would not be possible without much more efficient parsing and disambiguation algorithms for these formalisms and a method for...

Ngày tải lên: 31/03/2014, 06:20