@inproceedings{CormodeShkapenyukSrivastavaXu09,
	author={Graham Cormode and Vladislav Shkapenyuk and Divesh Srivastava and Bojian Xu},
	booktitle={International Conference on Data Engineering ({ICDE})},
	title={Forward Decay: A Practical Time Decay Model for Streaming Systems},
	year=2009,
}