Analysis of ontological instances - A data warehousefor the semantic web

New data warehouse tools for Semantic Web are becoming more and more necessary. The present paper formalizes one such a tool considering, on the one hand, the semantics and theorical foundations of Description Logic and, on the other hand, the current developments of information data generalization. The presented model is constituted by dimensions and multidimensional schemata and spaces. An algorithm to retrieve interesting spaces according to the data distribution is also proposed. Some ideas from Data Mining techniques are incorporated in order to allow users to discover knowledge from the Semantic Web.