Resource discovery considering semantic properties in data grid environments

  • Authors:
  • Imen Ketata;Riad Mokadem;Franck Morvan

  • Affiliations:
  • Institut de Recherche en Informatique de Toulouse, Paul Sabatier University, Toulouse, France;Institut de Recherche en Informatique de Toulouse, Paul Sabatier University, Toulouse, France;Institut de Recherche en Informatique de Toulouse, Paul Sabatier University, Toulouse, France

  • Venue:
  • Globe'11 Proceedings of the 4th international conference on Data management in grid and peer-to-peer systems
  • Year:
  • 2011

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Abstract

This paper deals with resource discovery in data Grid environments while taking into account the semantic heterogeneity of data sources. A domain ontology is associated to each domain and mappings exist between these domain ontologies. Our resource discovery method is adapted to any mapping graph topology between domain ontologies provided that the graph is connected. The proposed addressing system allows permanent access from any domain ontology to another despite the dynamicity of nodes. The performance evaluation of the proposed method proved the discovery cost reduction especially for inter-ontology queries. They also provide a significant maintenance costs reduction of such system especially when peers frequently join / leave the system.