@article {3808,
	title = {Toward Automatic Facet Analysis and Need Negotiation: Lessons From Mediated Search},
	journal = {ACM Transactions on Information Systems (TOIS)},
	volume = {27},
	year = {2008},
	pages = {6:1--6:42},
	doi = {10.1145/1416950.1416956},
	author = {Jimmy Lin and Philip Wu and Eileen G. Abels}
}
