@inproceedings{SIGIR-2011-CumminsJO,
	author        = "Ronan Cummins and Joemon M. Jose and Colm O'Riordan",
	booktitle     = "{Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/2009916.2010063",
	isbn          = "978-1-4503-0757-4",
	pages         = "1089--1090",
	publisher     = "{ACM}",
	title         = "{Improved query performance prediction using standard deviation}",
	year          = 2011,
}