Improving Geodatabase Semantic Querying Exploiting Ontologies


Geospatial semantic querying to geographical databases has been recognized as an hot topic in GIS research. Most approaches propose to adopt an ontology as a knowledge representation structure on top of the database, representing the concepts the user can query. These concepts are typically directly mapped to database tables. In this paper we propose a methodology where the ontology is further exploited mapping axioms to spatial SQL queries. The main advantage of this approach is that semantic-rich geospatial queries can be abstractly represented in the ontology and automatically translated into spatial SQL queries.JRC.H.6-Digital Earth and Reference Dat

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oai:publications.jrc.ec.europa.eu:JRC63722Last time updated on 6/8/2016

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