In: Wray L. Buntine; Marko Grobelnik; Dunja Mladenic; John Shawe-Taylor (Hrsg.). Machine Learning and Knowledge Discovery in Databases, European Conference, ECML PKDD 2009, Proceedings, Part I. European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD-2009), September 7-11, Bled, Slovenia, Pages 469-484, Lecture Notes in Artifical Intelligence (LNAI), Vol. 5781, Springer, 2009.