@inproceedings{SIGIR-2004-Canny,
	author        = "John F. Canny",
	booktitle     = "{Proceedings of the 27th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/1008992.1009016",
	isbn          = "1-58113-881-4",
	pages         = "122--129",
	publisher     = "{ACM}",
	title         = "{GaP: a factor model for discrete data}",
	year          = 2004,
}