Tài liệu Báo cáo khoa học: "Effective Phrase Translation Extraction from Alignment Models" ppt

... mature components within the translation process. This paper presents a method of phrase extraction from alignment data generated by IBM Models. By working directly from alignment data with appro- priate ... proportional to the lenth of the phrase, causing each translation to have a score compara- ble to the product of the word to word translations within the phrase. 7 HMM...

Ngày tải lên: 20/02/2014, 16:20

... and phrase- pair segmenting structure of translation, as in Figure 4. Given σ, the phrase- pair emission part merely gener- ates the phrase- pairs utilising distributions from ev- ery NT P to the phrase- pairs ... addresses these is- sues and separates hierarchical translation structure from phrase- pair emission. In section 3 we consider a chart over phrase- pair spans filled wit...

Ngày tải lên: 20/02/2014, 04:20

... highest-scoring alignment from each node in the hypothesis graph to a single node in the premise graph, or to null. It uses a locally decomposable scoring function: The score of an alignment is ... that this prediction results from two semantic judgments. The first is that the lack of alignments for two function words is unproblem- atic; the second is that the alignment between fact...

Ngày tải lên: 20/02/2014, 07:20

... get new alignment using Viterbi search algorithm (, k Ps (4) Repeat (2) to (3) until alignment con- verges (5) Derive normalization pairs from final alignment Figure 1. Phrase Alignment ... translating SMS texts from English to Chinese on a separate SMS text corpus shows that, using SMS normaliza- tion as MT preprocessing can largely boost SMS translation performance...

Ngày tải lên: 20/02/2014, 12:20

... of the target phrases, a hidden phrase level alignment variable, α K 1 , is introduced. In this case, we assume that the target phrase in position k is produced only by the source phrase in position ... p(˜s| ˜ t) estimates the probabil- ity of translating the phrase ˜ t into the phrase ˜s. A phrase can be comprised of a single word (but empty phrases are not allowed). Thus, the...

Ngày tải lên: 20/02/2014, 12:20

... WORD, PHRASE AND SENTENCE Kob't F. Sinnnons Univ. of Texas, Austin Among the relative verities ... the facts that morphemes and words are primary semantic units, and that their co-ocurrence in phrases and sentences provides cues for selecting sense meanings. In this session, two psycholinguistic ... final study is an experiment with a sentence level translator applied to a larg...

Ngày tải lên: 21/02/2014, 20:20

... translating from En- glish to more morphologically complex languages have been proposed. Koehn and Hoang (2007) propose Factored Translation Models, which ex- tend phrase- based statistical machine translation by ... Arabic, and its implications on SMT. It also describes the syntax of the verb phrase and noun phrase in Ara- bic, and how they differ from their English coun- terpar...

Ngày tải lên: 22/02/2014, 02:20

... varied from 55 bp to 95 bp and the threshold forces ranged from 5 to 65 pN. In addition, the authors found a clear dependence of the average threshold force on ionic conditions, ranging from 24 pN ... part of the curve was interpreted as a continuous unwinding of nucleosomal DNA from the histone octamer, mainly from contacts with histones H2A ⁄ H2B where the DNA–histone interactions...

Ngày tải lên: 14/02/2014, 18:20

... proteins from Bacillus subtilis, Streptomyces griseus, Streptomy- ces coelicolor, CgtA (CgtA is also called ObgE) proteins from Caulobacter crescentus, E. coli, Vibrio harveyi and YhbZ from Haemophilus ... Eiglmeier K, Gas S, Barry CE et al. (1998) Deciphering the biology of Mycobacte- rium tuberculosis from the complete genome sequence. Nature 393, 537–544. 49 Chitale S, Ehrt S, Kawa...

Ngày tải lên: 16/02/2014, 15:20

... Lactate dehydrogenase from Bacillus subtilis. Methods Enzymol 41, 304–309. 51 Moulis JM & Meyer J (1982) Characterization of the selenium-substituted 2 [4Fe-4Se] ferredoxin from Clostridium pasteurianum. ... existence of this intermediate was first established in NifS from A. vinn- elandii and, subsequently, based on structural studies, in SufS from Escherichia coli [17,18]. The pe...

Ngày tải lên: 18/02/2014, 04:20