Semantic query planning mechanism on XML based web information systems

Authors:
Jinguang Gu;Bo Hu;Yi Zhou
Affiliations:
College of Computer Science and Technology, Wuhan University of Science and Technology, Wuhan, China;College of Computer Science and Technology, Wuhan University of Science and Technology, Wuhan, China;College of Computer Science and Technology, Wuhan University of Science and Technology, Wuhan, China
Venue:
WISE'06 Proceedings of the 7th international conference on Web Information Systems
Year:
2006

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Abstract

To enable accessing web information at semantic level, this paper develops a semantic query planning mechanism on XML based web information system with complex ontology mapping technology. It discusses the patterns of complex ontology mappings at first, and then the ontology-based query planning in Mediator-Wrapper based environment with GAV style querying request. The extension of XML query algebra and XML query planning algorithm are discussed in detail.