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The emergence of the Semantic Web has given rise to researches on semantic integration of heterogeneous relational databases using ontology. Semantic-based heterogeneous relational data integration is recently attracting many diverse attentions, since most of the information is still stored in relational databases. This paper focuses on the query processing problem in semantic-based heterogeneous...
The closure of an RDF(S) source reveals the implicit semantics that it implies. In order to improve reasoning efficiency, researchers proposed to generate the RDFS closure for reasoning on RDF(S) datasets. Serially generating closure is insufficient to large scale RDF(S) source because of too much time taking and memory demand. In this paper, we present an approach of parallel generating the RDFS...
The emergence of the Semantic Web brings new paradigm shift of computing in data integration research where data is heterogeneous and distributed. Ontology-based heterogeneous relational data integration has recently attracted many diverse contributions, since most of the information is still stored in relational databases. This paper focuses on the query transformation problem in such an integration...
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