@inproceedings{SIGIR-2007-HeCL,
	author        = "Qi He and Kuiyu Chang and Ee-Peng Lim",
	booktitle     = "{Proceedings of the 30th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/1277741.1277779",
	isbn          = "978-1-59593-597-7",
	pages         = "207--214",
	publisher     = "{ACM}",
	title         = "{Analyzing feature trajectories for event detection}",
	year          = 2007,
}