X. Meng, F. Wei, X. Liu, M. Zhou, S. Li, and H. Wang. Proceedings of the 18th ACM SIGKDD international conference on Knowledge discovery and data mining, page 379--387. ACM, (2012)
A. Ritter, S. Clark, O. Etzioni, and others. Proceedings of the Conference on Empirical Methods in Natural Language Processing, page 1524--1534. Association for Computational Linguistics, (2011)
Y. Yang, and X. Liu. Proceedings of the 22nd annual international ACM SIGIR conference on Research and development in information retrieval, page 42--49. ACM, (1999)
N. Johri, D. Ramage, D. McFarland, and D. Jurafsky. Proceedings of the 5th ACL-HLT workshop on language technology for cultural heritage, social sciences, and humanities, page 124--132. Association for Computational Linguistics, (2011)