S. Feng, X. Li, Y. Zeng, G. Cong, Y. Chee, and Q. Yuan. Proceedings of the 24th International Conference on Artificial Intelligence, page 2069--2075. AAAI Press, (2015)
S. Chen, J. Moore, D. Turnbull, and T. Joachims. Proceedings of the 18th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, page 714--722. New York, NY, USA, ACM, (2012)
S. Chen, J. Xu, and T. Joachims. Proceedings of the 19th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, page 865--873. New York, NY, USA, ACM, (2013)