S. Cohen, K. Stratos, M. Collins, D. Foster, and L. Ungar. Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), page 223--231. Jeju Island, Korea, Association for Computational Linguistics, (July 2012)
X. Li, B. Liu, and S. Ng. Proceedings of the 2010 Conference on Empirical Methods in Natural Language Processing, page 218--228. Stroudsburg, PA, USA, Association for Computational Linguistics, (2010)
F. Ciravegna. Proceedings of the 17th international joint conference on Artificial intelligence - Volume 2, page 1251--1256. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (2001)
M. Califf, and R. Mooney. Proceedings of the sixteenth national conference on Artificial intelligence and the eleventh Innovative applications of artificial intelligence conference innovative applications of artificial intelligence, page 328--334. Menlo Park, CA, USA, American Association for Artificial Intelligence, (1999)
R. Reichart, and A. Rappoport. Proceedings of the 2010 Conference on Empirical Methods in Natural Language Processing, page 684--693. Stroudsburg, PA, USA, Association for Computational Linguistics, (2010)