@inproceedings{SIGIR-2009-Ha-ThucMHS,
	author        = "Viet Ha-Thuc and Yelena Mejova and Christopher G. Harris and Padmini Srinivasan",
	booktitle     = "{Proceedings of the 32nd International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/1571941.1572117",
	isbn          = "978-1-60558-483-6",
	pages         = "764--765",
	publisher     = "{ACM}",
	title         = "{A relevance-based topic model for news event tracking}",
	year          = 2009,
}