M. Rattigan, M. Maier, and D. Jensen. ICML '07: Proceedings of the 24th international conference on Machine learning, page 783--790. New York, NY, USA, ACM, (2007)
V. Satuluri, and S. Parthasarathy. KDD '09: Proceedings of the 15th ACM SIGKDD international conference on Knowledge discovery and data mining, page 737--746. New York, NY, USA, ACM, (2009)