@inproceedings{STOC-2012-AroraGKM,
	author        = "Sanjeev Arora and Rong Ge and Ravindran Kannan and Ankur Moitra",
	booktitle     = "{Proceedings of the 44th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/2213977.2213994",
	isbn          = "978-1-4503-1245-5",
	pages         = "145--162",
	publisher     = "{ACM}",
	title         = "{Computing a nonnegative matrix factorization — provably}",
	year          = 2012,
}