@inproceedings{CIKM-2009-SunCSSWL,
	author        = "Ke Sun and Yunbo Cao and Xinying Song and Young-In Song and Xiaolong Wang and Chin-Yew Lin",
	booktitle     = "{Proceedings of the 18th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/1645953.1646049",
	isbn          = "978-1-60558-512-3",
	pages         = "751--758",
	publisher     = "{ACM}",
	title         = "{Learning to recommend questions based on user ratings}",
	year          = 2009,
}