A theory of diagnosis from first principles
Artificial Intelligence
The Semantics of Predicate Logic as a Programming Language
Journal of the ACM (JACM)
Complexity and expressive power of logic programming
ACM Computing Surveys (CSUR)
Extending and implementing the stable model semantics
Artificial Intelligence
EPIA '91 Proceedings of the 5th Portuguese Conference on Artificial Intelligence
Preferred Answer Sets for Ordered Logic Programs
JELIA '02 Proceedings of the European Conference on Logics in Artificial Intelligence
Strong and Weak Constraints in Disjunctive Datalog
LPNMR '97 Proceedings of the 4th International Conference on Logic Programming and Nonmonotonic Reasoning
A Pragmatic Survey of Automated Debugging
AADEBUG '93 Proceedings of the First International Workshop on Automated and Algorithmic Debugging
JELIA '02 Proceedings of the European Conference on Logics in Artificial Intelligence
PLATYPUS: a platform for distributed answer set solving
LPNMR'05 Proceedings of the 8th international conference on Logic Programming and Nonmonotonic Reasoning
Hierarchical decision making in multi-agent systems using answer set programming
CLIMA VII'06 Proceedings of the 7th international conference on Computational logic in multi-agent systems
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We present an approximation theory for the extended answer set semantics, using the concept of an approximation constraint. Intuitively, an approximation constraint, while satisfied by a “perfect” solution, may be left unsatisfied in an approximate extended answer set. Approximations improve as the number of unsatisfied constraints decreases. We show how the framework can also capture the classical answer set semantics, thus providing an approximative version of the latter.