@inproceedings{SIGIR-2003-Roelleke,
	author        = "Thomas Rölleke",
	booktitle     = "{Proceedings of the 26th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/860435.860478",
	isbn          = "1-58113-646-3",
	pages         = "227--234",
	publisher     = "{ACM}",
	title         = "{A frequency-based and a poisson-based definition of the probability of being informative}",
	year          = 2003,
}