Semantic enabled metadata management in PetaShare

Authors:
Xinqi Wang;Dayong Huang;Ismail Akturk;Mehmet Balman;Gabrielle Allen;Tevfik Kosar
Affiliations:
Center for Computation & Technology, Department of Computer Science, Louisiana State University, Baton Rouge, LA 70803, USA.;Center for Computation & Technology, Department of Computer Science, Louisiana State University, Baton Rouge, LA 70803, USA.;Center for Computation & Technology, Department of Computer Science, Louisiana State University, Baton Rouge, LA 70803, USA.;Center for Computation & Technology, Department of Computer Science, Louisiana State University, Baton Rouge, LA 70803, USA.;Center for Computation & Technology, Department of Computer Science, Louisiana State University, Baton Rouge, LA 70803, USA.;Center for Computation & Technology, Department of Computer Science, Louisiana State University, Baton Rouge, LA 70803, USA
Venue:
International Journal of Grid and Utility Computing
Year:
2009

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Abstract

We designed a semantic enabled metadata framework using ontology for multi-disciplinary and multi-institutional large-scale scientific data sets in a Data Grid setting. Two main issues are addressed: data integration for semantically and physically heterogeneous distributed knowledge stores, and semantic reasoning for data verification and inference in such a setting. This framework enables data interoperability between otherwise semantically incompatible data sources, cross-domain query capabilities and multi-source knowledge extraction. In this paper, we present the basic system architecture for this framework, as well as an initial implementation. We also analyse a real-life scenario and show integration of our framework into the PetaShare Data Grid where multi-disciplinary data archives are geographically distributed across six research institutions in Louisiana.