@inproceedings{CormodeKornMutukrishnanSrivastava04,
	author={G. Cormode and F. Korn and S. Muthukrishnan and D. Srivastava},
	booktitle={{ACM} {SIGMOD} International 
                    Conference on Management of Data ({SIGMOD})},
	note={{\small {\it This paper is © ACM}}},
	pages={155--166},
	title={Diamond in the Rough: Finding Hierarchical Heavy Hitters in Multi-Dimensional Data},
	year=2004,
}