The Karlsruhe institute of technology translation systems for the WMT 2012

Authors:
Jan Niehues;Yuqi Zhang;Mohammed Mediani;Teresa Herrmann;Eunah Cho;Alex Waibel
Affiliations:
Karlsruhe Institute of Technology, Karlsruhe, Germany;Karlsruhe Institute of Technology, Karlsruhe, Germany;Karlsruhe Institute of Technology, Karlsruhe, Germany;Karlsruhe Institute of Technology, Karlsruhe, Germany;Karlsruhe Institute of Technology, Karlsruhe, Germany;Karlsruhe Institute of Technology, Karlsruhe, Germany
Venue:
WMT '12 Proceedings of the Seventh Workshop on Statistical Machine Translation
Year:
2012

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Abstract

This paper describes the phrase-based SMT systems developed for our participation in the WMT12 Shared Translation Task. Translations for English↔German and English↔French were generated using a phrase-based translation system which is extended by additional models such as bilingual, fine-grained part-of-speech (POS) and automatic cluster language models and discriminative word lexica. In addition, we explicitly handle out-of-vocabulary (OOV) words in German, if we have translations for other morphological forms of the same stem. Furthermore, we extended the POS-based reordering approach to also use information from syntactic trees.