Rule-based schema matching for ontology-based mediators |
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| Authors: | Gunter Saake Kai-Uwe Sattler Stefan Conrad |
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| Affiliation: | aUniversity of Magdeburg, Computer Science, Universitätsplatz 2, D-39106 Magdeburg, Germany;bTechnical University of Ilmenau, Computer Science and Automation, P.O. Box 100 565, D-98684 Ilmenau, Germany;cUniversity of Düsseldorf, Computer Science, Universitätsstr. 1, D-40225 Düsseldorf, Germany |
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| Abstract: | Mediating heterogeneous data sources heavily relies on explicit domain knowledge expressed, for example, as ontologies and mapping rules. We discuss the use of logic representations for mapping schema elements onto concepts expressed in a simplified ontology for cultural assets. Starting with a logic representation of the ontology, criteria for a rule-based schema matching are exemplified. Special requirements are the handling of uncertain information and the processing of hierarchical XML structures representing instances. |
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| Keywords: | Schema matching Data integration Logic representation |
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