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COOPIS
2002
IEEE
15 years 2 months ago
A Defeasible Ontology Language
We extend the description logic ¢¤£¦¥¦§©¨ with a preference order on the axioms. With this strict partial order certain axioms can be overruled, if defeated with more ...
Stijn Heymans, Dirk Vermeir
DLOG
2001
14 years 11 months ago
The Generation of DAML+OIL
daml+oil is a new description logic developed for use within the DAML project and as a submission to the upcoming W3C semantic web ontology working group. It is closely based on t...
Ian Horrocks, Peter F. Patel-Schneider
DLOG
1998
14 years 11 months ago
Learning Composite Concepts
This paper proposes a framework to learn concepts from di erent kinds of observations. We de ne a language to describe meta-concepts, that represent the sets of possible concepts ...
Patrick Lambrix, Pierpaolo Larocchia
CADE
2005
Springer
15 years 10 months ago
The OWL Instance Store: System Description
Abstract. We describe the instance store, a system for reasoning about individuals (i.e., instances of classes) in OWL ontologies. By using a hybrid reasoner/database architecture,...
Sean Bechhofer, Ian Horrocks, Daniele Turi
FLAIRS
2009
14 years 7 months ago
A Knowledge Compilation Technique for ALC Tboxes
Knowledge compilation is a common technique for propositional logic knowledge bases. A given knowledge base is transformed into a normal form, for which queries can be answered ef...
Ulrich Furbach, Heiko Günther, Claudia Oberma...