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Complexity of Inconsistency−Tolerant Query Answering in Datalog+⁄−

Abstract:

The study of inconsistency-tolerant semantics for query answering in ontological languages has recently gained much attention. In this work, we consider three inconsistency-tolerant semantics recently proposed in the literature, namely: consistent query answering, the intersection (also called IAR) semantics, and the intersection of closed repairs (ICR) semantics. We study the data complexity of conjunctive query answering under these semantics for a wide set of tractable fragments of Datalog...

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Publisher:
Springer
Volume:
8185
Publication date:
2013-01-01
URN:
uuid:a91cab2a-51f9-43bf-816b-3042168418dd
Local pid:
cs:6986

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