@conference {574,
	title = {Exploiting Correlated Keywords to Improve Approximate Information Filtering},
	booktitle = {Proceedings of the 31st Annual International ACM SIGIR Conference},
	year = {2008},
	month = {July},
	address = {Singapore},
	author = {Christian Zimmer and Christos Tryfonopoulos and Gerhard Weikum}
}
