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» Representation and Reasoning on RBAC: A Description Logic Ap...
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IJCAI
1989
13 years 10 months ago
Preferred Subtheories: An Extended Logical Framework for Default Reasoning
We present a general framework for defining nonmonotonic systems based on the notion of preferred maximal consistent subsets of the premises. This framework subsumes David Poole&#...
Gerhard Brewka
FLAIRS
2004
13 years 10 months ago
Use of Default Reasoning for Disambiguation Under Question Answering
We develop the default logic for pragmatic analysis of natural language queries. Ambiguous sentences are considered so that each set of meanings is assigned an extension of defaul...
Boris Galitsky
DLOG
1998
13 years 10 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
ICMCS
2005
IEEE
120views Multimedia» more  ICMCS 2005»
14 years 2 months ago
Picturefinder: Description Logics for Semantic Image Retrieval
Large amount of images need an efficient way of retrieving them. The usual approach of manually annotating images and/or providing a syntactic retrieval capability lacks flexibi...
Jean-Pierre Schober, Thorsten Hermes, Otthein Herz...
DLOG
1998
13 years 10 months ago
Expressiveness Revisited
We consider two recently proposed definitions of the expressive power of description logics, one due to Baader, the other due to Kurtonina and de Rijke. The proposals are non-equi...
Carlos Areces, Maarten de Rijke