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Querying over Federated SPARQL Endpoints - A State of the Art Survey

Rakhmawati, Nur
Umbrich, Jürgen
Karnstedt, Marcel
Hasnain, Ali
Hausenblas, Michael
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2013
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Technical Report
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Nur Rakhmawati and Jürgen Umbrich and Marcel Karnstedt and Ali Hasnain and Michael Hausenblas (2013) Querying over Federated SPARQL Endpoints - A State of the Art Survey. Technical Publication
Abstract
The increasing amount of Linked Data and its inherent distributed nature have attracted significant attention throughout the research community and amongst practitioners to search data, in the past years. Inspired by research results from traditional distributed databases, different approaches for managing federation over SPARQL Endpoints have been introduced. SPARQL is the standardised query language for RDF, the default data model used in Linked Data deployments and SPARQL Endpoints are a popular access mechanism provided by many Linked Open Data (LOD) repositories. In this paper, we initially give an overview of the federation framework infrastructure and then proceed with a comparison of existing SPARQL federation frameworks. Finally, we highlight shortcomings in existing frameworks, which we hope helps spawning new research directions
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Attribution-NonCommercial-NoDerivs 3.0 Ireland