@inproceedings{PODS-2006-ZhaoOWX,
	author        = "Qi Zhao and Mitsunori Ogihara and Haixun Wang and Jun (Jim) Xu",
	booktitle     = "{Proceedings of the 25th Symposium on Principles of Database Systems}",
	doi           = "10.1145/1142351.1142394",
	isbn          = "1-59593-318-2",
	pages         = "298--307",
	publisher     = "{ACM}",
	title         = "{Finding global icebergs over distributed data sets}",
	year          = 2006,
}