@conference {1407,
	title = {Using query contexts in information retrieval},
	booktitle = {Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval},
	year = {2007},
	publisher = {ACM},
	organization = {ACM},
	pdf = {http://rali.iro.umontreal.ca/rali/sites/default/files/publis/10.1.1.409.2630.pdf},
	author = {Bai, Jing and Jian-Yun Nie and Cao, Guihong and Bouchard, Hugues}
}
