@inproceedings{CIKM-2009-ChapelleMZG,
	author        = "Olivier Chapelle and Donald Metlzer and Ya Zhang and Pierre Grinspan",
	booktitle     = "{Proceedings of the 18th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/1645953.1646033",
	isbn          = "978-1-60558-512-3",
	pages         = "621--630",
	publisher     = "{ACM}",
	title         = "{Expected reciprocal rank for graded relevance}",
	year          = 2009,
}