A DHT-based infrastructure for ad-hoc integration and querying of semantic data

  • Authors:
  • Marcel Karnstedt;Kai-Uwe Sattler;Manfred Hauswirth;Roman Schmidt

  • Affiliations:
  • TU Ilmenau, Germany;TU Ilmenau, Germany;Digital Enterprise Research Institute (DERI), Galway, Ireland;EPFL Lausanne, Switzerland

  • Venue:
  • IDEAS '08 Proceedings of the 2008 international symposium on Database engineering & applications
  • Year:
  • 2008

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Abstract

A crucial prerequisite for the deployment and success of Peer-to-Peer data management applications is the availability of metadata in a way that makes it easy to access and combine data from different sources and domains. In this paper, we argue for a unified and distributed infrastructure providing a repository for semantic data by offering location transparency and advanced query services. After discussing the challenges of such an approach, we present our solution which applies extended SPARQL-like query features for dealing with large and possibly heterogeneous data sets. We focus on the integration into efficient distributed query processing and evaluate our approach in a series of experiments.