@inproceedings{SIGMOD-2009-MeiM,
	author        = "Yuan Mei and Samuel Madden",
	booktitle     = "{Proceedings of the 27th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/1559845.1559867",
	isbn          = "978-1-60558-551-2",
	pages         = "193--206",
	publisher     = "{ACM}",
	title         = "{ZStream: a cost-based query processor for adaptively detecting composite events}",
	year          = 2009,
}