Query-Oriented Summarization of RDF Graphs

Šejla Čebirić 1, 2 François Goasdoué 3 Ioana Manolescu 1, 2
1 OAK - Database optimizations and architectures for complex large data
LRI - Laboratoire de Recherche en Informatique, UP11 - Université Paris-Sud - Paris 11, Inria Saclay - Ile de France, CNRS - Centre National de la Recherche Scientifique : UMR8623
3 PILGRIM - Gradedness, Imprecision, and Mediation in Database Management Systems
IRISA-D7 - GESTION DES DONNÉES ET DE LA CONNAISSANCE
Abstract : The Resource Description Framework (RDF) is the W3C's graph data model for Semantic Web applications. We study the problem of RDF graph summarization: given an input RDF graph G, find an RDF graph G' which summarizes G as accurately as possible, while being possibly orders of magnitude smaller than the original graph. Our summaries are aimed as a help for query formulation and optimization; in particular, querying a summary of a graph should reflect whether the query has some answers against this graph. We introduce two summaries: a baseline which is compact and simple and satisfies certain accuracy and representativeness properties, but may oversimplify the RDF graph, and a refined one which trades some of these properties for more accuracy in representing the structure. The demonstration will allow the audience to compute such summaries out of a large variety of datasets, and explore their usage for data exploration and query optimization. The demonstration will also be presented in BDA 2015; its main ideas appear in BICOD 2015.
Type de document :
Communication dans un congrès
BDA (Bases de Données Avancées), Sep 2015, Île de Porquerolles, France. <http://bda2015.univ-tln.fr/>
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https://hal.inria.fr/hal-01176301
Contributeur : Šejla Čebirić <>
Soumis le : mercredi 15 juillet 2015 - 11:25:28
Dernière modification le : mercredi 2 août 2017 - 10:06:19
Document(s) archivé(s) le : mercredi 26 avril 2017 - 04:31:35

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Šejla Čebirić, François Goasdoué, Ioana Manolescu. Query-Oriented Summarization of RDF Graphs. BDA (Bases de Données Avancées), Sep 2015, Île de Porquerolles, France. <http://bda2015.univ-tln.fr/>. <hal-01176301>

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