Data Analysis, Classification and the Forward Search : Proceedings of the Meeting of the Classification and Data Analysis Group (CLADAG) of the Italian Statistical Society, University of Parma, June 6-8, 2005 - Zani, Sergio (Herausgeber); Cerioli, Andrea (Herausgeber); Riani, Marco (Herausgeber); Vichi, Maurizio (Herausgeber) (Studies in Classification, Data Analysis, and Knowledge Organization, 2006)