@inproceedings{KDD-2009-WangWZ,
	author        = "Kuansan Wang and Toby Walker and Zijian Zheng",
	booktitle     = "{Proceedings of the 15th International Conference on Knowledge Discovery and Data Mining}",
	doi           = "10.1145/1557019.1557164",
	isbn          = "978-1-60558-495-9",
	pages         = "1355--1364",
	publisher     = "{ACM}",
	title         = "{PSkip: estimating relevance ranking quality from web search clickthrough data}",
	year          = 2009,
}