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» Modal Logics, Description Logics and Arithmetic Reasoning
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IFIP
1992
Springer
13 years 11 months ago
Intelligent Access to Data and Knowledge Bases via User's Topics of Interest
Retrieving relevant information in Data and Knowledge Bases containing a large number of di erent types of information is a non trivial problem. That is the reason why, in areas l...
Sylvie Cazalens, Robert Demolombe
KR
1994
Springer
13 years 11 months ago
An Ontology of Meta-Level Categories
We focus in this paper on some meta-level ontological distinctions among unary predicates, like those between concepts and assertional properties. Three are the main contributions...
Nicola Guarino, Massimiliano Carrara, Pierdaniele ...
AIA
2006
13 years 9 months ago
Speeding Up Model-based Diagnosis by a Heuristic Approach to Solving SAT
Model-based diagnosis of technical systems requires both a simulation machinery and a logic calculus. The former is responsible for the system's behavior analysis, the latter...
Benno Stein, Oliver Niggemann, Theodor Lettmann
AI
2005
Springer
13 years 7 months ago
Knowledge updates: Semantics and complexity issues
We consider the problem of how an agent's knowledge can be updated. We propose a formal method of knowledge update on the basis of the semantics of modal logic S5. In our met...
Chitta Baral, Yan Zhang
OTM
2007
Springer
14 years 1 months ago
A Role and Attribute Based Access Control System Using Semantic Web Technologies
We show how Semantic Web technologies can be used to build an access control system. We follow the role-based access control approach (RBAC) and extend it with contextual attribute...
Lorenzo Cirio, Isabel F. Cruz, Roberto Tamassia