Bridging the gap between OWL and relational databases
Web Semantics: Science, Services and Agents on the World Wide Web
Using tableau to decide expressive description logics with role negation
ISWC'07/ASWC'07 Proceedings of the 6th international The semantic web and 2nd Asian conference on Asian semantic web conference
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This paper gives an account of how traditional metadata application profiles are related to Web ontologies and Description Logics. It is shown that metadata profiles can be formalized into Description Logics; oddly enough though, OWL 2, with its current expressivity, is shown to be inadequate for this purpose. First, we give an overview of the recent proposal for representing metadata profiles using the notion of Description Set Profiles and XML Schema. We point out the necessity of an additional representation scheme, using also ontological languages. Following, we introduce a possible translation of Description Set Profiles to Description Logics and identify the required expressivity characteristics that are essential for such a translation. The relationship of this representation to OWL Integrity Constraints is also examined. Finally, we discuss what expense do these characteristics put on to the complexity of reasoning.