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» On Querying Ontologies and Databases
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IJCAI
2003
15 years 7 months ago
Querying Distributed Data through Distributed Ontologies: A Simple but Scalable Approach
In this paper, we define a simple but scalable framework for peer-to-peer data sharing systems, in which the problem of answering queries over a network of semantically related p...
François Goasdoué, Marie-Christine R...
DLOG
2009
15 years 7 months ago
Tractable Query Answering over Ontologies with Datalog+/-
Abstract. We present a family of expressive extensions of Datalog, called Datalog
Andrea Calì, Georg Gottlob, Thomas Lukasiew...
COOPIS
2002
IEEE
15 years 11 months ago
Querying XML Sources Using an Ontology-Based Mediator
In this paper we propose a mediator architecture for the querying and integration of Web-accessible XML data sources. Our contributions are (i) the definition of a simple but expr...
Bernd Amann, Catriel Beeri, Irini Fundulaki, Miche...
DEXA
2007
Springer
115views Database» more  DEXA 2007»
16 years 9 days ago
Ontology Modularization for Knowledge Selection: Experiments and Evaluations
Problems with large monolithical ontologies in terms of reusability, scalability and maintenance have lead to an increasing interest in modularization techniques for ontologies. Cu...
Mathieu d'Aquin, Anne Schlicht, Heiner Stuckenschm...
LREC
2008
170views Education» more  LREC 2008»
15 years 7 months ago
A Semantic Memory for Incremental Ontology Population
Generally, ontology learning and population is applied as a semi-automatic approach to knowledge acquisition in natural language understanding systems. That means, after the ontol...
Berenike Loos, Lasse Schwarten