Database management system

G - Physics – 06 – F

Patent

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G06F 17/30 (2006.01)

Patent

CA 2460717

A database management system comprising a plurality of database resources (12, 14, 16) includes a query engine (30) which parses incoming queries into sub- queries directed at respective resources, (12, 14, 16) and compiles the sub- results into a final result. A node and a link representation is used to associate values from a different resources to address problems of semantic mismatch. In addition, ontologies are compiled for each resource against a shared ontology and a user/application ontology. As a result of the system, problems of semantic mismatch and query integration against distributed resources is overcome.

L'invention concerne un système de gestion de base de données comprenant une pluralité de ressources de base de données (12, 14, 16). Le système de gestion de base de données selon l'invention comprend un moteur d'interrogation (30) qui analyse des interrogations entrantes en sous-interrogations orientées vers des ressources respectives (12, 14, 16) et compile les sous-résultats en un résultat final. Un noeud et une représentation de lien sont utilisés pour associer des valeurs provenant de différentes ressources afin de s'attaquer aux problèmes de non-concordance sémantique. En outre, des ontologies sont compilées pour chaque ressource en fonction d'une ontologie partagée et d'une ontologie d'utilisateur/d'application. Grâce à ce système, on surmonte les problèmes de non-concordance sémantique et d'intégration d'interrogation par rapport à des ressources réparties.

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