@inproceedings{SIGMOD-2002-ChangH,
	author        = "Kevin Chen-Chuan Chang and Seung-won Hwang",
	booktitle     = "{Proceedings of the 20th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/564691.564731",
	isbn          = "1-58113-497-5",
	pages         = "346--357",
	publisher     = "{ACM}",
	title         = "{Minimal probing: supporting expensive predicates for top-k queries}",
	year          = 2002,
}