@inproceedings{KDD-2007-FungYLY,
	author        = "Gabriel Pui Cheong Fung and Jeffrey Xu Yu and Huan Liu and Philip S. Yu",
	booktitle     = "{Proceedings of the 13th International Conference on Knowledge Discovery and Data Mining}",
	doi           = "10.1145/1281192.1281227",
	isbn          = "978-1-59593-609-7",
	pages         = "300--309",
	publisher     = "{ACM}",
	title         = "{Time-dependent event hierarchy construction}",
	year          = 2007,
}