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FLAIRS
2009
15 years 4 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...
ER
2007
Springer
89views Database» more  ER 2007»
16 years 1 months ago
On Order Dependencies for the Semantic Web
We consider the problem of adding both equality and order generating dependencies to Web ontology languages such as OWL DL that are based on description logics. Such dependencies u...
David Toman, Grant E. Weddell
WISE
2005
Springer
16 years 11 days ago
A Formal Ontology Reasoning with Individual Optimization: A Realization of the Semantic Web
Abstract. Answering a query over a group of RDF data pages is a trivial process. However, in the Semantic Web, there is a need for ontology technology. Consequently, OWL, a family ...
Pakornpong Pothipruk, Guido Governatori
CP
2005
Springer
16 years 10 days ago
Graph Invariants as Necessary Conditions for Global Constraints
Abstract. This article presents a database of about 200 graph invariants for deriving systematically necessary conditions from the graph properties based representation of global c...
Nicolas Beldiceanu, Mats Carlsson, Jean-Xavier Ram...
POLICY
2005
Springer
16 years 9 days ago
Managing the Policies of Non-Technical Users in a Dynamic World
In this paper, we describe the use of description logic as the basis for a policy representation language and show how it is used in our implementation of a policy managed pervasi...
Tim Owen, Ian Wakeman, Bill Keller, Julie Weeds, D...