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Alternatives in Subtree Caching for Genetic Programming

  • Maarten Keijzer
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3003)

Abstract

This work examines a number of subtree caching mechanisms that are capable of adapting during the course of a run while maintaining a fixed size cache of already evaluated subtrees. A cache update and flush mechanism is introduced as well as the benefits of vectorized evaluation over the standard case-by-case evaluation method for interpreted genetic programming systems are discussed. The results show large benefits for the use of even very small subtree caches. One of the approaches studied here can be used as a simple add-on module to an existing genetic programming system, providing an opportunity to improve the runtime efficiency of such a system.

Keywords

Genetic Programming Hash Table Cache Size Symbolic Regression Cache Mechanism 
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 2004

Authors and Affiliations

  • Maarten Keijzer
    • 1
  1. 1.KiQ Ltd.Amsterdam

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