@inproceedings{SIGIR-2007-QinZWLLL,
	author        = "Tao Qin and Xu-Dong Zhang and De-Sheng Wang and Tie-Yan Liu and Wei Lai and Hang Li",
	booktitle     = "{Proceedings of the 30th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/1277741.1277791",
	isbn          = "978-1-59593-597-7",
	pages         = "279--286",
	publisher     = "{ACM}",
	title         = "{Ranking with multiple hyperplanes}",
	year          = 2007,
}