Titlebook: On the Move to Meaningful Internet Systems 2007: OTM 2007 Workshops; OTM Confederated Int Robert Meersman,Zahir Tari,Pilar Herrero Conferen

凹處

A Model for Fuzzy Multidimensional SpacesFuzzy data representation and manipulation is needed in Data Warehouse due to imprecision or uncertainty from different sources. Nevertheless, this problem has not been wide explored. We propose a fuzzy multidimensional model, cube and operators with a notion of fuzzy hierarchy based on fuzzy functional dependencies.