Rewriting Queries Using Views for RDF-Based Relational Integration

Authors:
Huajun Chen;Zhaohui Wu;Yuxin Mao
Affiliations:
Zhejiang University;Zhejiang University;Zhejiang University
Venue:
ICTAI '05 Proceedings of the 17th IEEE International Conference on Tools with Artificial Intelligence
Year:
2005

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Abstract

We study the problem of answering queries through a tar get RDF ontology, given a set of view-based mappings between one or more source relational schemas and this target ontology. We design a novel query rewriting algorithm that can efficiently rewrites a RDF query into relational queries using a set of RDF views. With our approach , we highlight the important role played by RDF Blank Node in representing incomplete semantics of relational data when integrating them using RDF.