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Published in:
2005 | OriginalPaper | Chapter
SWQL – A Query Language for Data Integration Based on OWL
Authors : Patrick Lehti, Peter Fankhauser
Published in: On the Move to Meaningful Internet Systems 2005: OTM 2005 Workshops
Publisher: Springer Berlin Heidelberg
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The Web Ontology Language OWL has been advocated as a suitable model for semantic data integration. Data integration requires expressive means to map between heterogeneous OWL schemas. This paper introduces SWQL (Semantic Web Query Language), a strictly typed query language for OWL, and shows how it can be used for mapping between heterogeneous schemas. In contrast to existing RDF query languages which focus on selection and navigation, SWQL also supports construction and user-defined functions to allow for instantiating integrated global schemas in OWL.