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SSDBM
2002
IEEE

Query Processing with Description Logic Ontologies Over Object-Wrapped Databases

13 years 8 months ago
Query Processing with Description Logic Ontologies Over Object-Wrapped Databases
This paper presents an approach to answering queries over an ontology modelled using a description logic. The ontology acts as a global schema, providing a declarative description of the concepts of the domain, the instances of which are stored in (potentially many) object-wrapped sources. Queries are expressed using terms from the rich vocabulary of the ontology, and are translated into an equivalent calculus expression, which references only the objects available in the source databases. The query is then optimized on the basis of information from the ontology and the source databases. Distinctive features of the approach include: the use of the expressive  ¢¡¤£¤¥¤¦ description logic, which supports both ontology definition and query expression; the adoption of a global-as-view approach to relating the ontology to the sources; and the use of the ontology to direct semantic optimization of queries phrased over specific sources. The approach is being developed in, and is il...
Martin Peim, Enrico Franconi, Norman W. Paton, Car
Added 16 Jul 2010
Updated 16 Jul 2010
Type Conference
Year 2002
Where SSDBM
Authors Martin Peim, Enrico Franconi, Norman W. Paton, Carole A. Goble
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