@inproceedings{SIGIR-2011-WangXLC,
	author        = "Quan Wang and Jun Xu and Hang Li and Nick Craswell",
	booktitle     = "{Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/2009916.2010008",
	isbn          = "978-1-4503-0757-4",
	pages         = "685--694",
	publisher     = "{ACM}",
	title         = "{Regularized latent semantic indexing}",
	year          = 2011,
}