Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Formalisation and Experiences of R2RML-based SPARQL to SQL query translation using Morph
Year:2014
Research Areas
  • Engineering,
  • Database
Information
Abstract
R2RML is used to specify transformations of data available in relational databases into materialised or virtual RDF datasets. SPARQL queries evaluated against virtual datasets are translated into SQL queries according to the R2RML mappings, so that they can be evaluated over the underlying relational database engines. In this paper we describe an extension of a well-known algorithm for SPARQL to SQL translation, originally formalised for RDBMS-backed triple stores, that takes into account R2RML mappings. We present the result of our implementation using queries from a synthetic benchmark and from three real use cases, and show that SPARQL queries can be in general evaluated as fast as the SQL queries that would have been generated by SQL experts if no R2RML mappings had been used.
International
Si
Congress
23rd International World Wide Web Conference
960
Place
Seoul, South Korea
Reviewers
Si
ISBN/ISSN
Start Date
07/04/2014
End Date
11/04/2014
From page
479
To page
490
Participants
  • Autor: Freddy Priyatna . (UPM)
  • Autor: Oscar Corcho Garcia (UPM)
  • Autor: Juan Sequeda (University of Texas at Austin)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Inteligencia Artificial
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