Knowledge Discovery in Databases: PKDD 2007 - Joost N. Kok; Jacek Koronacki; Ramon Lopez de Mantaras; Stan Matwin; Dunja Mladenic; Joost N. Kok; Jacek Koronacki; Ramon Lopez de Mantaras; Stan Matwin; Dunja Mladenic (Knowledge Discovery in Databases: PKDD 2007, 2007)