@conference {shi2010using,
	title = {Using various term dependencies according to their utilities},
	booktitle = {Proceedings of the 19th ACM international conference on Information and knowledge management},
	year = {2010},
	pages = {1493{\textendash}1496},
	publisher = {ACM},
	organization = {ACM},
	author = {Shi, Lixin and Jian-Yun Nie}
}
