@inproceedings{HT-2011-ZhangL,
	author        = "Lei Zhang and Bing Liu",
	booktitle     = "{Proceedings of the 22nd Conference on Hypertext and Hypermedia}",
	doi           = "10.1145/1995966.1996002",
	isbn          = "978-1-4503-0256-2",
	pages         = "281--290",
	publisher     = "{ACM}",
	title         = "{Entity set expansion in opinion documents}",
	year          = 2011,
}