@inproceedings{SIGMOD-2007-HuangN,
	author        = "Jiansheng Huang and Jeffrey F. Naughton",
	booktitle     = "{Proceedings of the 25th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/1247480.1247500",
	isbn          = "978-1-59593-686-8",
	pages         = "163--174",
	publisher     = "{ACM}",
	title         = "{K-relevance: a spectrum of relevance for data sources impacting a query}",
	year          = 2007,
}