Z. Cao, T. Qin, T. Liu, M. Tsai, and H. Li. Proceedings of the 24th international conference on Machine learning, page 129--136. New York, NY, USA, ACM, (2007)
F. Xia, T. Liu, J. Wang, W. Zhang, and H. Li. Proceedings of the 25th international conference on Machine learning, page 1192--1199. New York, NY, USA, ACM, (2008)
Z. Cao, T. Qin, T. Liu, M. Tsai, and H. Li. Proceedings of the 24th international conference on Machine learning, page 129--136. New York, NY, USA, ACM, (2007)