[PDF] Top 20 The RWTH System Combination System for WMT 2011

... of system combination on TUNE and DEV are listed in Table ...all system combination approaches were able to achieve a significant im- provement of at least ...expect system ... See full document

... System combination is used to produce consensus translations from multiple hypotheses generated with different translation ...single system hy- potheses is ...single system hypotheses is ... See full document

... the WMT 2012 shared translation task 1 RWTH utilized state-of-the-art phrase-based and hierarchi- cal translation systems as well as an in-house sys- tem combination ... See full document

... of system combination based on confu- sion network includes the following steps: (a) Choose one system output as the “skeleton”, which roughly decides the word ...further system outputs to the ... See full document

... each system as well as other sta- tistical models such as a special trigram language ...linear combination of BLEU and TER with a weight of 2 on the former; a combination that has proven to deliver ... See full document

... For the participation in the WMT 2015 shared translation task, RWTH experimented with a phrase-based translation system. For this ap- proach, we applied a hierarchical phrase reorder- ing model and a ... See full document

... linear combination of the probability distributions of the component ...linear combination of the Bayes gains of the components. Each system provides its own space of evidences D n (f ) and its ... See full document

... smoothed 3-gram and 4-gram precisions. To that end, the training data is decoded to generate 100- best lists. We apply a leave-one-out heuristic (Wuebker et al., 2010) to make better use of the training data. Using these ... See full document

... al., 2011) and the same n-gram language mod- els as described in our PBT system are also ...PBT system and the parameter weights are also optimized with MERT (Och, 2003) towards the B LEU ... See full document

... translation system uses two lan- guage models (LM) that are estimated with the KenLM toolkit (Heafield et ...log-linear combination: A 5-gram LM and a 7- gram word-class language model ... See full document

... our system 1 was built using all the French and English data supplied for the workshop’s shared translation task, apart from the Gigaword monolin- gual corpora released by the ... See full document

... hybrid system in the WMT workshop 2011. Our system is different from the system of the last year (Federmann et ...perform system combination on the final transla- tion ... See full document

... To counter this effect we oversample Com- monCrawl, Europarl and NewsCommentary with a factor of two. Rapid and the synthetic news data are not oversampled. As we can observe in Row 6 of Table 2 this gives a minor ... See full document

... feature combination in log-probability space suggested us that transforming the features into a set of orthog- onal features could make MERT optimization more robust and ... See full document

... In comparison to the standard heuristic phrase ex- traction technique, performing phrase training (FA) gives an improvement in BLEU on newstest2008 and newstest2009, but a degradation in TER. The addition of LDC Gigaword ... See full document

... lingual system combination, namely combining the output from DE→EN, ES→EN, and FR→EN systems to a single English consensus transla- ...single system. While this is only 0.8%/2.5% bet- ter than the ... See full document

... other system combination software such as MANY (Barrault, 2010) and MEMT (Heafield and Lavie, 2010) is its reliance on word and phrase fre- quencies in a parallel corpus to guide decoding, whereas MANY and ... See full document

... contrastive system, of which six served as ...of system com- bination on DEV and TEST (the latter calculated after submission) in Table ...2. System combination itself turns out to have the ... See full document

... this WMT submission was to show the quality of a joint translation by combining the knowledge of the four project ...translation system, we combined all hypotheses of the different systems, using the ... See full document

... letters. System outputs and language model training data were normalized using the provided punctuation normalization script, Unicode codepoint collaps- ing, the provided Moses (Koehn et ...for system ... See full document