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Erschienen in:
2007 | OriginalPaper | Buchkapitel
Adapting the Rete-Algorithm to Evaluate F-Logic Rules
verfasst von : Florian Schmedding, Nour Sawas, Georg Lausen
Erschienen in: Advances in Rule Interchange and Applications
Verlag: Springer Berlin Heidelberg
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The evaluation of production rules is typically based on the Rete-algorithm. The topic of the current paper is to investigate, whether set-oriented bottom-up evaluation of rules in deductive databases can also take advantage of the Rete approach. We report on our implementation of the Rete algorithm as one possible evaluation technique inside the F-Logic rule evaluation engine Florid. We demonstrate, that in situations in which several rules share common subgoals a considerable improvement of the execution time can be gained by the Rete approach. We show this by means of benchmark programs, also comparing our results with the performance of Jess, a production rule system relying on Rete.