Y. Zheng, F. Liu, and H. Hsieh. International Conference on Knowledge Discovery and Data Mining (SIGKDD), page 1436--1444. New York, NY, USA, ACM, (2013)
J. Yuan, Y. Zheng, and X. Xie. Proceedings of the 18th ACM SIGKDD international conference on Knowledge discovery and data mining, page 186--194. ACM, (2012)