Ontology-based information sharing
In the last chapter we introduced the general problem of information sharing in the presence of heterogeneous data. In this chapter, we introduce ontologies as a means of dealing with semantic heterogeneity. We discuss the nature and applications of ontologies and review existing approaches that use ontologies for dealing with heterogeneous data. We also identify the state of the art in ontology-based information integration and identify open problems that will be addressed in the remainder of the book.
KeywordsInformation Source Description Logic Information Integration Query Model Ontology Concept
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