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Fine Grained Information Integration with Description Logics

We outline an approach to query optimization in which a description logic (DL) reasoner serves a crucial strategic role, and present an example application of our approach in fine grained information integration. In particular, the application demonstrates how the internal structure of an unfolded Btree can be captured as a terminology, and how an access plan that navigates this internal structure can be found with the aid of a DL reasoner.