@conference {Cao_06:Constructing,
	title = {Constructing better document and query models with Markov chains},
	booktitle = {ACM-CIKM},
	year = {2006},
	pages = {800-801},
	pdf = {http://rali.iro.umontreal.ca/rali/sites/default/files/publis/CIKM06.pdf},
	author = {Guihong Cao and Jian-Yun Nie and Jing Bai}
}
