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» Revised Stable Models - A Semantics for Logic Programs
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CISIS
2009
IEEE
14 years 2 months ago
A Nonmonotonic Logical Approach for Modelling and Revising Metabolic Networks
—This paper describes a new logic-based approach for representing and reasoning about metabolic networks. First it shows how biological pathways can be elegantly represented in a...
Oliver Ray, Ken E. Whelan, Ross D. King
ECAI
2008
Springer
13 years 9 months ago
A Coherent Well-founded Model for Hybrid MKNF Knowledge Bases
Abstract. With the advent of the Semantic Web, the question becomes important how to best combine open-world based ontology languages, like OWL, with closed-world rules paradigms. ...
Matthias Knorr, José Júlio Alferes, ...
SUM
2007
Springer
14 years 1 months ago
The Consistency Extractor System: Querying Inconsistent Databases Using Answer Set Programs
Abstract. We present the Consistency Extractor System (ConsEx) that uses answer set programming to compute consistent answers to first-order queries posed to relational databases ...
Mónica Caniupán Marileo, Leopoldo E....
AAAI
2004
13 years 9 months ago
On Odd and Even Cycles in Normal Logic Programs
An odd cycle of a logic program is a simple cycle that has an odd number of negative edges in the dependency graph of the program. Similarly, an even cycle is one that has an even...
Fangzhen Lin, Xishun Zhao
ICLP
2001
Springer
14 years 7 days ago
Alternating Fixed Points in Boolean Equation Systems as Preferred Stable Models
We formally characterize alternating fixed points of boolean equation systems as models of (propositional) normal logic programs. To this end, we introduce the notion of a preferr...
K. Narayan Kumar, C. R. Ramakrishnan, Scott A. Smo...