Querying Objects with Description Logics

The 2nd International Workshop on the Physics ofCompressible Turbulent Mixing

Martin Peim ; Enrico Franconi ; Norman W. Paton ; Carole A. Goble

Others  :  http://CEUR-WS.org/Vol-53/franconi.pdf
PID  :  10983

来源: CEUR

【 摘 要 】

This paper presents an approach to answering queries over an ontology mod- elled 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 optimised on the basis of information