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172
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ICALP
1998
Springer
15 years 11 months ago
1998
Springer
Abstract. We study entailment of structural and nonstructural recursive subtyping constraints. Constraints are formal inequalities between type expressions, interpreted over an ord...
177
Voted
ICLP
1997
Springer
15 years 11 months ago
1997
Springer
Kowalski and Sergot’s Event Calculus (EC) is a simple temporal formalism that, given a set of event occurrences, derives the maximal validity intervals (MVIs) over which propert...
205
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RULES
1993
Springer
15 years 11 months ago
1993
Springer
Semantic models have shown the utility of arbitrary user-de ned relationships for de ning the semantics of database information, while objectoriented models have developed a stron...
171
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FOAL
2007
ACM
15 years 10 months ago
2007
ACM
The goal of this work is to treat safety and security policies as requirements to be composed in an aspectual style with a developing application. Policies can be expressed either...
224
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AI
2001
Springer
15 years 10 months ago
2001
Springer
The stable semantics has become a prime candidate for knowledge representation and reasoning. The rules associated with propositional logic programs and the stable semantics are no...