ISCA Archive IWSLT 2009
ISCA Archive IWSLT 2009

The MIT-LL/AFRL IWSLT-2009 MT system

Wade Shen, Brian Delaney, A. Ryan Aminzadeh, Tim Anderson, Ray Slyh

This paper describes the MIT-LL/AFRL statistical MT system and the improvements that were developed during the IWSLT 2009 evaluation campaign. As part of these efforts, we experimented with a number of extensions to the standard phrase-based model that improve performance on the Arabic and Turkish to English translation tasks. We discuss the architecture of the MIT-LL/AFRL MT system, improvements over our 2008 system, and experiments we ran during the IWSLT-2009 evaluation. Specifically, we focus on 1) Cross-domain translation using MAP adaptation and unsupervised training, 2) Turkish morphological processing and translation, 3) improved Arabic morphology for MT preprocessing, and 4) system combination methods for machine translation.

Cite as: Shen, W., Delaney, B., Aminzadeh, A.R., Anderson, T., Slyh, R. (2009) The MIT-LL/AFRL IWSLT-2009 MT system. Proc. International Workshop on Spoken Language Translation (IWSLT 2009), 71-78

  author={Wade Shen and Brian Delaney and A. Ryan Aminzadeh and Tim Anderson and Ray Slyh},
  title={{The MIT-LL/AFRL IWSLT-2009 MT system}},
  booktitle={Proc. International Workshop on Spoken Language Translation (IWSLT 2009)},