@inproceedings{SIGIR-2011-HeZSLY,
	author        = "Jing He and Wayne Xin Zhao and Baihan Shu and Xiaoming Li and Hongfei Yan",
	booktitle     = "{Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/2009916.2009956",
	isbn          = "978-1-4503-0757-4",
	pages         = "275--284",
	publisher     = "{ACM}",
	title         = "{Efficiently collecting relevance information from clickthroughs for web retrieval system evaluation}",
	year          = 2011,
}