International Workshop on Spoken Language Translation (IWSLT) 2007

Trento, Italy
October 15-16, 2007

Improved Chunk-Level Reordering for Statistical Machine Translation

Yuqi Zhang, Richard Zens, Hermann Ney

Human Language Technology and Pattern Recognition, Lehrstuhl für Informatik 6, Computer Science Department, RWTH Aachen University, Germany

Inspired by previous chunk-level reordering approaches to statistical machine translation, this paper presents two methods to improve the reordering at the chunk level. By introducing a new lattice weighting factor and by reordering the training source data, an improvement is reported on TER and BLEU. Compared to the previous chunklevel reordering approach, the BLEU score improves 1.4% absolutely. The translation results are reported on IWSLT Chinese-English task.

Full Paper     Presentation

Bibliographic reference.  Zhang, Yuqi / Zens, Richard / Ney, Hermann (2007): "Improved chunk-level reordering for statistical machine translation", In IWSLT-2007, 21-28.