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Semantics and optimisation of the SPARQL1.1 federation extension

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Oscar Corcho
Oscar Corcho

Presentation done at ESWC2011 for the paper "Semantics and optimisation of the SPARQL1.1 federation extension". Buil-Aranda C, Arenas M, Corcho O. ESWC2011, May 2011, Hersonissos, Greece

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Semantics and optimization of the SPARQL 1.1 federation extension Carlos Buil Aranda (1), Marcelo Arenas (2), Oscar Corcho (1) cbuil @ fi.upm.es, marenas@ing.puc.cl, [email_address] 11th November, 2010, Madrid, Spain (1) Ontology Engineering Groupd, Facultad de Informática, Universidad Politécnica de Madrid (2) Departamento Ciencias de la Computacion, Pontificia Universidad Católica de Chile
Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object]
Introduction Pubmed MESH HHPID ?meshReference <owl:sameAs> ?descriptor {?pubmed <pubmed:meshref> ?mesh . ?mesh <pubmed:descriptor> ?descriptor .} ?int <hhpid:elementGene2> ?gene1 GeneID ?gene1 <geneid:pubmed_xref> ?pubmed
Introduction ,[object Object],[object Object],[object Object],[object Object],SELECT ?pubmed ?gene1 ?mesh ?descriptor ?meshReference WHERE { ?interaction <http://ontology.bio2rdf.org/hhpid:elementGene2> ?gene1 . ?gene1 <http://bio2rdf.org/geneid_resource:pubmed_xref> ?pubmed . ?pubmed <http://bio2rdf.org/pubmed_resource:meshref> ?mesh . ?mesh <http://bio2rdf.org/pubmed_resource:descriptor> ?descriptor . ?meshReference <http://www.w3.org/2002/07/owl#sameAs> ?descriptor .}
Introduction: SPARQL 1.1 Federation Extension ,[object Object],[object Object],[object Object],SELECT ?pubmed ?gene1 ?mesh ?descriptor ?meshReference WHERE { SERVICE < http://quebec.hhpid.bio2rdf.org/sparql > { ?interaction <http://ontology.bio2rdf.org/hhpid:elementGene2> ?gene1 .} . SERVICE < http://127.0.0.1:2020/sparql-geneid > { ?gene1 <http://bio2rdf.org/geneid_resource:pubmed_xref> ?pubmed .} . SERVICE < http://pubmed.bio2rdf.org/sparql > { ?pubmed <http://bio2rdf.org/pubmed_resource:meshref> ?mesh . ?mesh <http://bio2rdf.org/pubmed_resource:descriptor> ?descriptor . }. SERVICE < http://127.0.0.1:2021/sparql-mesh > { ?meshReference <http://www.w3.org/2002/07/owl#sameAs> ?descriptor .}
Table of Contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Syntax & Semantics Preliminaries
Syntax & Semantics Preliminaries
Syntax & Semantics Preliminaries
SPARQL1.1 SERVICE syntax ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SPARQL 1.1 SERVICE Semantics ,[object Object],[PAG09] J. Pérez, M. Arenas and C. Gutiérrez. Semantics and complexity of SPARQL. TODS 34(3), 2009 !!!
SPARQL 1.1 SERVICE Semantics ,[object Object]
Table of Contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SERVICE Evaluation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SERVICE Evaluation – Ingredients and Informal Definitions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SERVICE Evaluation - Boundedness
SERVICE Evaluation - Strong Boundedness
SERVICE Evaluation - Safeness ,[object Object]
SERVICE Evaluation - Safeness ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Table of Contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Optimising Federated Queries ,[object Object]
Optimising federated queries with well-designed patterns ,[object Object],[object Object],[object Object],[object Object]
Table of Contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Implementation: OGSA-DAI ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Implementation: Evaluation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Results
Table of Contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conclusions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Semantics and optimization of the SPARQL 1.1 federation extension ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Semantics and optimisation of the SPARQL1.1 federation extension

  • 1. Semantics and optimization of the SPARQL 1.1 federation extension Carlos Buil Aranda (1), Marcelo Arenas (2), Oscar Corcho (1) cbuil @ fi.upm.es, marenas@ing.puc.cl, [email_address] 11th November, 2010, Madrid, Spain (1) Ontology Engineering Groupd, Facultad de Informática, Universidad Politécnica de Madrid (2) Departamento Ciencias de la Computacion, Pontificia Universidad Católica de Chile
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  • 3. Introduction Pubmed MESH HHPID ?meshReference <owl:sameAs> ?descriptor {?pubmed <pubmed:meshref> ?mesh . ?mesh <pubmed:descriptor> ?descriptor .} ?int <hhpid:elementGene2> ?gene1 GeneID ?gene1 <geneid:pubmed_xref> ?pubmed
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  • 7. Syntax & Semantics Preliminaries
  • 8. Syntax & Semantics Preliminaries
  • 9. Syntax & Semantics Preliminaries
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  • 16. SERVICE Evaluation - Boundedness
  • 17. SERVICE Evaluation - Strong Boundedness
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