Grammar Design for Derivation Tree Based Genetic Programming Systems

  • Stefan Forstenlechner
  • Miguel Nicolau
  • David Fagan
  • Michael O’Neill
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9594)

Abstract

Grammar-based genetic programming systems have gained interest in recent decades and are widely used nowadays. Although researchers normally present the grammar used to solve a certain problem, they seldom write about processes used to construct the grammar. This paper sheds some light on how to design a grammar that not only covers the search space, but also supports the search process in finding good solutions. The focus lies on context free grammar guided systems using derivation tree crossover and mutation, in contrast to linearised grammar based systems. Several grammars are presented encompassing the search space of sorting networks and show concepts which apply to general grammar design. An analysis of the search operators on different grammar is undertaken and performance examined on the sorting network problem. The results show that the overall structure for derivation trees created by the grammar has little effect on the performance, but still affects the genetic material changed by search operators.

Keywords

Grammar design Derivation trees Genetic programming 

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Stefan Forstenlechner
    • 1
  • Miguel Nicolau
    • 1
  • David Fagan
    • 1
  • Michael O’Neill
    • 1
  1. 1.Natural Computing Research and Applications Group, School of BusinessUniversity College DublinDublinIreland

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