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Reasoning as Axioms Change

Incremental View Maintenance Reconsidered
  • Jakub Kotowski
  • François Bry
  • Simon Brodt
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6902)

Abstract

We present a novel incremental algorithm to compute changes to materialized views in logic databases like those used by rule-based reasoners. Such reasoners have to address the problem of changing axioms in the presence of materializations of derived atoms. Existing approaches have drawbacks: some require to generate and evaluate large transformed programs that are in Datalog¬ while the source program is in Datalog and significantly smaller; some recompute the whole extension of a predicate even if only a small part of this extension is affected by the change. The method presented in this article overcomes both drawbacks, arguably at an acceptable price: a slight adaptation of the semi-naïve forward chaining.

Keywords

Resource Description Framework Belief Revision Deductive Database Logic Database Datalog Program 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Jakub Kotowski
    • 1
  • François Bry
    • 1
  • Simon Brodt
    • 1
  1. 1.Institute for InformaticsUniversity of MunichGermany

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