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» The Limits of Querying Ontologies
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ATAL
2008
Springer
13 years 10 months ago
Conjunctive queries for ontology based agent communication in MAS
In order to obtain semantic interoperability in open MultiAgent Systems, agents need to agree on the basis of different ontologies. In this paper we formally define mapping as cor...
Cássia Trojahn dos Santos, Paulo Quaresma, ...
DILS
2005
Springer
14 years 2 months ago
BioNavigation: Selecting Optimum Paths Through Biological Resources to Evaluate Ontological Navigational Queries
Publicly available biological resources form a complex maze of highly heterogeneous data sources, interconnected by navigational capabilities and applications. Although it offers ...
Zoé Lacroix, Kaushal Parekh, Maria-Esther V...
PVLDB
2010
151views more  PVLDB 2010»
13 years 7 months ago
Advanced Processing for Ontological Queries
Ontology-based data access is a powerful form of extending database technology, where a classical extensional database (EDB) is enhanced by an ontology that generates new intensio...
Andrea Calì, Georg Gottlob, Andreas Pieris
ICLP
2007
Springer
14 years 17 days ago
OnEQL: An Ontology Efficient Query Language Engine for the Semantic Web
Abstract. In this paper we describe the OnEQL system, a query engine that implements optimization techniques and evaluation strategies to speed up the evaluation time of querying a...
Edna Ruckhaus, Maria-Esther Vidal, Eduardo Ruiz
ICAIL
2007
ACM
13 years 10 months ago
Legal Query Expansion using Ontologies and Relevance Feedback
The aim of our research is the improvement of Boolean search with query expansion using lexical ontologies and user feedback. User studies strongly suggest that standard search tec...
Erich Schweighofer, Anton Geist