Title: Towards distributed processing of RDF path queries

Authors: Heiner Stuckenschmidt, Richard Vdovjak, Jeen Broekstra, Geert-Jan Houben

Addresses: Vrije Universiteit Amsterdam, de Boelelaan 1081a, 1081HV Amsterdam, The Netherlands. ' Technische Universiteit Eindhoven, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands. ' Vrije Universiteit Amsterdam, de Boelelaan 1081a, 1081HV Amsterdam, The Netherlands and Aduna, Prinses Julianaplein 14 b, 3817 CS Amersfoort, The Netherlands. ' Technische Universiteit Eindhoven, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands

Abstract: A technical infrastructure for storing, querying and managing RDF data is a key element in the current semantic web development. Systems like Jena, Sesame or the ICS-FORTH RDF Suite are widely used for building semantic web applications. Currently, none of these systems support the integrated querying of distributed RDF repositories. We consider this a major shortcoming since the semantic web is distributed by nature. In this paper we present an architecture for querying distributed RDF repositories by extending the existing Sesame system. We discuss the implications of our architecture and propose an index structure as well as algorithms for query processing and optimisation in such a distributed context.

Keywords: index structures; optimisation; RDF querying; RDF path queries; semantic web; distributed RDF repositories; Sesame; query processing.

DOI: 10.1504/IJWET.2005.008484

International Journal of Web Engineering and Technology, 2005 Vol.2 No.2/3, pp.207 - 230

Available online: 22 Dec 2005 *

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