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Publication Detail
Repeated patterns in tree genetic programming
  • Publication Type:
  • Authors:
    Langdon WB, Banzhaf W
  • Publisher:
    Springer-Verlag GmbH
  • Publication date:
  • Pagination:
    190, 202
  • Chapter number:
  • Editors:
    Keijzer M,Tettamanzi A,Collet P
  • ISBN-10:
  • Book title:
    Genetic Programming: 8th European Conference, EuroGP 2005, Lausanne, Switzerland, March 30 - April 1, 2005. Proceedings
  • Notes:
    Imported via OAI, 7:29:01 21st May 2005; Imported via OAI, 7:29:01 2nd Aug 2005
We extend our analysis of repetitive patterns found in genetic programming genomes to tree based GP.As in linear GP, repetitive patterns are present in large numbers. Size fair crossover limits bloat in automatic programming, preventing the evolution of recurring motifs. We examine these complex properties in detail: e.g. using depth v. size Catalan binary tree shape plots, subgraph and subtree matching, information entropy, syntactic and semantic fitness correlations and diffuse introns. We relate this emergent phenomenon to considerations about building blocks in GP and how GP works.
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