We study the problem of answering queries through a target RDF-based ontology, given a set of view-based mappings between one or more source relational schemas and this target ontology. Particularly, we consider a set of RDFS semantic constraints such as rdfs:subClassof, rdfs:subPropertyof, rdfs:domain, and rdfs:range, which are present in RDF model but neither XML nor relational models. We formally define the query semantics in such an integration scenario, and design a novel query rewriting algorithm to implement the semantics.
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- Rewriting Queries Using View for RDF/RDFS-Based Relational Data Integration
- Springer Berlin Heidelberg
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