@inbook {huang2010unified,
	title = {A Unified Iterative Optimization Algorithm for Query Model and Ranking Refinement},
	booktitle = {Information Retrieval Technology},
	year = {2010},
	pages = {514{\textendash}526},
	publisher = {Springer},
	organization = {Springer},
	author = {Huang, Yunping and Sun, Le and Jian-Yun Nie}
}
