@inproceedings{CIKM-2009-MaYKL,
	author        = "Hao Ma and Haixuan Yang and Irwin King and Michael R. Lyu",
	booktitle     = "{Proceedings of the 18th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/1645953.1646051",
	isbn          = "978-1-60558-512-3",
	pages         = "767--776",
	publisher     = "{ACM}",
	title         = "{Semi-nonnegative matrix factorization with global statistical consistency for collaborative filtering}",
	year          = 2009,
}