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.

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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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