@inproceedings{RecSys-2008-Koren,
	author        = "Yehuda Koren",
	booktitle     = "{Proceedings of the Second Conference on Recommender Systems}",
	doi           = "10.1145/1454008.1454067",
	isbn          = "978-1-60558-093-7",
	pages         = "333--334",
	publisher     = "{ACM}",
	title         = "{Tutorial on recent progress in collaborative filtering}",
	year          = 2008,
}