Clustering objects on subsets of attributes - Discussion - Hand,DJ; Glasbey,C; Husmeier,D; Gower,JC; van,Houwelingen HC; Bugrien,JB; Nason,G; Critchley,F; Hoff,PD; McLachlan,GJ; Bean,RW (JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES B-STATISTICAL METHODOLOGY, 2004)