Memorias de investigación
Artículos en revistas:
kyrie2: Query Rewriting under Extensional Constraints in ELHIO
Año:2014
Áreas de investigación
  • Ciencias de la computación y tecnología informática
Datos
Descripción
In this paper we study query answering and rewriting in ontologybased data access. Specifically, we present an algorithm for computing a perfect rewriting of unions of conjunctive queries posed over ontologies expressed in the description logic ELHIO, which covers the OWL 2 QL and OWL 2 EL profiles. The novelty of our algorithm is the use of a set of ABox dependencies, which are compiled into a so-called EBox, to limit the expansion of the rewriting. So far, EBoxes have only been used in query rewriting in the case of DL-Lite, which is less expressive than ELHIO. We have extensively evaluated our new query rewriting technique, and in this paper we discuss the tradeoff between the reduction of the size of the rewriting and the computational cost of our approach.
Internacional
Si
JCR del ISI
Si
Título de la revista
Lecture Notes in Computer Science
ISSN
0302-9743
Factor de impacto JCR
Información de impacto
Volumen
8796
DOI
10.1007/978-3-319-11964-9
Número de revista
Desde la página
568
Hasta la página
583
Mes
SIN MES
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Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ontology Engineering Group
  • Departamento: Inteligencia Artificial