The RWTH system combination system for WMT 2009

  • Authors:
  • Gregor Leusch;Evgeny Matusov;Hermann Ney

  • Affiliations:
  • RWTH Aachen University, Aachen, Germany;RWTH Aachen University, Aachen, Germany;RWTH Aachen University, Aachen, Germany

  • Venue:
  • StatMT '09 Proceedings of the Fourth Workshop on Statistical Machine Translation
  • Year:
  • 2009

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Abstract

RWTH participated in the System Combination task of the Fourth Workshop on Statistical Machine Translation (WMT 2009). Hypotheses from 9 German→English MT systems were combined into a consensus translation. This consensus translation scored 2.1% better in Bleu and 2.3% better in Ter (abs.) than the best single system. In addition, cross-lingual output from 10 French, German, and Spanish→English systems was combined into a consensus translation, which gave an improvement of 2.0% in Bleu/3.5% in Ter (abs.) over the best single system.