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Description Logic TBoxes: Model-Theoretic Characterizations and Rewritability

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Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence. Pages 983-987.

https://doi.org/10.5591/978-1-57735-516-8/IJCAI11-169

Abstract

We characterize the expressive power of description logic (DL) TBoxes, both for expressive DLs such as ALC and ALCQIO and lightweight DLs such as DL-Lite and EL. Our characterizations are relative to first-order logic, based on a wide range of semantic notions such as bisimulation, equisimulation, disjoint union, and direct product. We exemplify the use of the characterizations by a first study of the following novel family of decision problems: given a TBox T formulated in one DL, decide whether T can be equivalently rewritten as a TBox in der fragment L' of L.

Carsten Lutz, Robert Piro, and Frank Wolter. 2011. Description Logic TBoxes: Model-Theoretic Characterizations and Rewritability. In Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence, IJCAI-11. IJCAI, 983–987. https://doi.org/10.5591/978-1-57735-516-8/IJCAI11-169
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