AnQL: SPARQLing up annotated RDFS

  • Authors:

  • Nuno Lopes;Axel Polleres;Umberto Straccia;Antoine Zimmermann

  • Affiliations:

  • Digital Enterprise Research Institute, National University of Ireland Galway, Ireland;Digital Enterprise Research Institute, National University of Ireland Galway, Ireland;Istituto di Scienza e Tecnologie dell'Informazione, CNR, Pisa, Italy;Digital Enterprise Research Institute, National University of Ireland Galway, Ireland

  • Venue:
  • ISWC'10 Proceedings of the 9th international semantic web conference on The semantic web - Volume Part I
  • Year:
  • 2010

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Abstract

Starting from the general framework for Annotated RDFS which we presented in previous work (extending Udrea et al's Annotated RDF), we address the development of a query language - AnQL - that is inspired by SPARQL, including several features of SPARQL 1.1. As a side effect we propose formal definitions of the semantics of these features (subqueries, aggregates, assignment, solution modifiers) which could serve as a basis for the ongoing work in SPARQL 1.1. We demonstrate the value of such a framework by comparing our approach to previously proposed extensions of SPARQL and show that AnQL generalises and extends them.