N. Asher, F. Benamara, and Y. Mathieu. ECAI 2008: 18th European Conference on Artificial Intelligence, page 835--836. Amsterdam, The Netherlands, The Netherlands, IOS Press, (2008)
S. Somasundaran, J. Ruppenhofer, and J. Wiebe. SIGdial '08: Proceedings of the 9th SIGdial Workshop on Discourse and Dialogue, page 129--137. Morristown, NJ, USA, Association for Computational Linguistics, (2008)
T. Nakagawa, K. Inui, and S. Kurohashi. Human Language Technologies: The 2010 Annual Conference of the North American Chapter of the Association for Computational Linguistics, page 786--794. Los Angeles, California, Association for Computational Linguistics, (June 2010)
S. Moghaddam, and M. Ester. Proceedings of the 19th ACM international conference on Information and knowledge management, page 1825--1828. New York, NY, USA, ACM, (2010)
Q. Zhang, Y. Wu, T. Li, M. Ogihara, J. Johnson, and X. Huang. Proceedings of the 32nd international ACM SIGIR conference on Research and development in information retrieval, page 726--727. New York, NY, USA, ACM, (2009)
X. Ding, and B. Liu. Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval, page 811--812. New York, NY, USA, ACM, (2007)
Q. Miao, Q. Li, and R. Dai. Proceeding of the 17th ACM conference on Information and knowledge management, page 1369--1370. New York, NY, USA, ACM, (2008)
N. Jakob, and I. Gurevych. Proceedings of the 2010 Conference on Empirical Methods in Natural Language Processing, page 1035--1045. Cambridge, MA, Association for Computational Linguistics, (October 2010)
F. Cruz, J. Troyano, F. Enr\'ıquez, F. Ortega, and C. Vallejo. Proceedings of the 2nd international workshop on Search and mining user-generated contents, page 13--20. New York, NY, USA, ACM, (2010)
F. Li, C. Han, M. Huang, X. Zhu, Y. Xia, S. Zhang, and H. Yu. Proceedings of the 23rd International Conference on Computational Linguistics (Coling 2010), page 653--661. Beijing, China, Coling 2010 Organizing Committee, (August 2010)
B. Snyder, and R. Barzilay. Human Language Technologies 2007: The Conference of the North American Chapter of the Association for Computational Linguistics; Proceedings of the Main Conference, page 300--307. Rochester, New York, Association for Computational Linguistics, (April 2007)
M. Fleischman, N. Kwon, and E. Hovy. EMNLP '03: Proceedings of the 2003 conference on Empirical methods in natural language processing, page 49--56. Morristown, NJ, USA, Association for Computational Linguistics, (2003)
R. Snow, B. O'Connor, D. Jurafsky, and A. Ng. EMNLP '08: Proceedings of the Conference on Empirical Methods in Natural Language Processing, page 254--263. Morristown, NJ, USA, Association for Computational Linguistics, (2008)