Published: 2005 November
Herausgeber: Axel Hahn, Sven Abels, Liane Haak
Buchtitel: IHIS 05: Proceedings of the first international workshop on Interoperability of heterogeneous information systems
Verlag: ACM Press
To enable interoperability between applications in distributed information systems based on heterogeneous ontologies, it is necessary to formally define the notion of a mapping between ontologies. In this paper, we define a mapping system for OWL-DL ontologies, where mappings are expressed as correspondences between conjunctive queries over ontologies. As query answering within such a general mapping system is undecidable, we identify a decidable fragment of the mapping system, which corresponds to OWL-DL extended with DL-safe rules. We further show how the mapping system can be applied for the task of ontology integration and present a query answering algorithm.
VG Wort-Seiten: 14
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