@inproceedings{RecSys-2013-Shi,
	author        = "Lei Shi",
	booktitle     = "{Proceedings of the Seventh Conference on Recommender Systems}",
	doi           = "10.1145/2507157.2507165",
	isbn          = "978-1-4503-2409-0",
	pages         = "57--64",
	publisher     = "{ACM}",
	title         = "{Trading-off among accuracy, similarity, diversity, and long-tail: a graph-based recommendation approach}",
	year          = 2013,
}