@inproceedings{ECIR-2008-McSherryN,
	author        = "Frank McSherry and Marc Najork",
	booktitle     = "{Proceedings of the 30th European Conference on Information Retrieval Research: Advances in Information Retrieval}",
	doi           = "10.1007/978-3-540-78646-7_38",
	isbn          = "978-3-540-78645-0",
	pages         = "414--421",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Computing Information Retrieval Performance Measures Efficiently in the Presence of Tied Scores}",
	volume        = 4956,
	year          = 2008,
}