Alignment model adaptation for domain-specific word alignment

  • Authors:
  • Wu Hua;Wang Haifeng;Liu Zhanyi

  • Affiliations:
  • Toshiba (China) Research and Development Center, Dong Cheng District, Beijing, China;Toshiba (China) Research and Development Center, Dong Cheng District, Beijing, China;Toshiba (China) Research and Development Center, Dong Cheng District, Beijing, China

  • Venue:
  • ACL '05 Proceedings of the 43rd Annual Meeting on Association for Computational Linguistics
  • Year:
  • 2005

Quantified Score

Hi-index 0.00

Visualization

Abstract

This paper proposes an alignment adaptation approach to improve domain-specific (in-domain) word alignment. The basic idea of alignment adaptation is to use out-of-domain corpus to improve in-domain word alignment results. In this paper, we first train two statistical word alignment models with the large-scale out-of-domain corpus and the small-scale in-domain corpus respectively, and then interpolate these two models to improve the domain-specific word alignment. Experimental results show that our approach improves domain-specific word alignment in terms of both precision and recall, achieving a relative error rate reduction of 6.56% as compared with the state-of-the-art technologies.