Titlebook: Rules and Reasoning; International Joint Stefania Costantini,Enrico Franconi,Dumitru Roman Conference proceedings 2017 Springer Internatio

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Conference proceedings 201717. This is the first conference of a new series, joining the efforts of two existing conference series, namely “RuleML” (International Web Rule Symposium) and “RR” (Web Reasoning and Rule Systems). .The 16 regular papers presented together with 2 keynote abstracts were carefully reviewed and select

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Inconsistency-Tolerant Instance Checking in Tractable Description Logics,ontrary to ABox repairs, when KB repairs are considered, instance checking in . w.r.t. the brave semantics remains tractable, and the intersection semantics allow for an any-time algorithm. We also show that inconsistency-tolerant instance checking w.r.t. ABox repairs is intractable even if only polynomially many ABox repairs exist.

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On the Chase for All Provenance Paths with Existential Rules,chase mechanisms. We build upon the notion of Graph of Atoms Dependency (GAD) and use it to solve the problem of provenance path loss in the context of forward chaining with existential rules. We study the properties of this structure and investigate how different chase mechanisms impact its construction.

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