Artificial Intelligence
Nonmonotonic reasoning, preferential models and cumulative logics
Artificial Intelligence
Kleene's three valued logics and their children
Fundamenta Informaticae
General patterns in nonmonotonic reasoning
Handbook of logic in artificial intelligence and logic programming (vol. 3)
Handbook of logic in artificial intelligence and logic programming (vol. 3)
A Model-Theoretic Approach for Recovering Consistent Data from Inconsistent Knowledge Bases
Journal of Automated Reasoning
Four-Valued Diagnoses for Stratified Knowledge-Bases
CSL '96 Selected Papers from the10th International Workshop on Computer Science Logic
How to infer from inconsistent beliefs without revising
IJCAI'95 Proceedings of the 14th international joint conference on Artificial intelligence - Volume 2
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We consider an algorithmic approach for revising inconsistent data and restoring its consistency. This approach detects the "spoiled" part of the data (i.e., the set of assertions that cause inconsistency), deletes it from the knowledge-base, and then draws classical conclusions from the "recovered information". The essence of this approach is its coherence with the original (possibly inconsistent) data: On one hand it is possible to draw classical conclusions from any data that is not related to the contradictory information, while on the other hand, the only inferences allowed by this approach are those that do not contradict any former conclusion. This method may therefore be used by systems that restore consistent information and are obliged to their resource of information. Common examples of this case are diagnostic procedures that analyse faulty components of malfunction devices, and database management systems that amalgamate distributed knowledge-bases.