user- Proceedings of the 6th International Conference on Intelligent Text Processing and Computational Linguistics CICLing-2005, page 486-497. Mexico City, Mexico, (2005)
- page 112-118. Taipei, Taiwan, (2002)
- In Proceedings of the ACL, page 271--278. (2004)
- Proceedings of the 2003 conference on Empirical methods in natural language processing, page 105--112. Morristown, NJ, USA, Association for Computational Linguistics, (2003)
- Proceedings of ACL-08: HLT, page 353--361. Columbus, Ohio, Association for Computational Linguistics, (June 2008)
- ACL '06: Proceedings of the 21st International Conference on Computational Linguistics and the 44th annual meeting of the ACL, page 1065--1072. Morristown, NJ, USA, Association for Computational Linguistics, (2006)
