@inproceedings{RecSys-2014-LercheJ,
	author        = "Lukas Lerche and Dietmar Jannach",
	booktitle     = "{Proceedings of the Eighth Conference on Recommender Systems}",
	doi           = "10.1145/2645710.2645759",
	isbn          = "978-1-4503-2668-1",
	pages         = "353--356",
	publisher     = "{ACM}",
	title         = "{Using graded implicit feedback for bayesian personalized ranking}",
	year          = 2014,
}