@inproceedings{ECIR-2013-HuiGHL,
	author        = "Kai Hui and Bin Gao and Ben He and Tiejian Luo",
	booktitle     = "{Proceedings of the 35th European Conference on Information Retrieval Research: Advances in Information Retrieval}",
	doi           = "10.1007/978-3-642-36973-5_20",
	isbn          = "978-3-642-36972-8",
	pages         = "230--241",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Sponsored Search Ad Selection by Keyword Structure Analysis}",
	volume        = 7814,
	year          = 2013,
}