Semantic heterogeneity and few compatible data sources are two problems in data grid service. This paper introduces a novel wrapper-mediator based semantic data grid service mechanism, it uses ontology based semantic information to wrap the heterogeneous data source, and employs mediator structure to supply accessing interface for the data sources. The extension of XML algebra with semantic query enhanced and semantic grid communication mechanism are also discussed to enable semantic querying on data gird environment.


Grid Node Ontology Concept Query Planning Semantic Query Heterogeneous Data Source 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Jinguang Gu
    • 1
    • 2
  • Baowen Xu
    • 2
  1. 1.College of Computer Science and TechnologyWuhan University of Science and TechnologyWuhanChina
  2. 2.College of Computer Science and EngineeringSoutheast UniversityNanjingChina

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