RDFPath: path query processing on large RDF graphs with mapreduce

  • Authors:
  • Martin Przyjaciel-Zablocki;Alexander Schätzle;Thomas Hornung;Georg Lausen

  • Affiliations:
  • Lehrstuhl für Datenbanken und Informationssysteme, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Germany;Lehrstuhl für Datenbanken und Informationssysteme, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Germany;Lehrstuhl für Datenbanken und Informationssysteme, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Germany;Lehrstuhl für Datenbanken und Informationssysteme, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Germany

  • Venue:
  • ESWC'11 Proceedings of the 8th international conference on The Semantic Web
  • Year:
  • 2011

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Abstract

The MapReduce programming model has gained traction in different application areas in recent years, ranging from the analysis of log files to the computation of the RDFS closure. Yet, for most users the MapReduce abstraction is too low-level since even simple computations have to be expressed as Map and Reduce phases. In this paper we propose RDFPath, an expressive RDF path query language geared towards casual users that benefits from the scaling properties of the MapReduce framework by automatically transforming declarative path queries into MapReduce jobs. Our evaluation on a real world data set shows the applicability of RDFPath for investigating typical graph properties like shortest paths.