X. Yang, G. Zhou, J. Su, and C. Tan. Proceedings of the 1st International Joint Conference on Natural Language Processing, Hainan Island, China, (2004)
X. Luo. Proceedings of Human Language Technology Conference and Conference on Empirical Methods in Natural Language Processing, Vancouver, Canada, (2005)
S. Ponzetto, and M. Strube. Proceedings of Human Language Technologies 2006: The Conference of the North American Chapter of the Association for Computational Linguistics, New York, NY, (2006)