XML Based Semantic Query Mechanism on Grid

Jinguang Gu, Baowen Xu

Abstract: 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.