Designing a classifier by a layered multi-population genetic programming approach

Jung Yi Lin*, Hao Ren Ke, Been Chian Chien, Wei Pang Yang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)


This paper proposes a method called layered genetic programming (LAGEP) to construct a classifier based on multi-population genetic programming (MGP). LAGEP employs layer architecture to arrange multiple populations. A layer is composed of a number of populations. The results of populations are discriminant functions. These functions transform the training set to construct a new training set. The successive layer uses the new training set to obtain better discriminant functions. Moreover, because the functions generated by each layer will be composed to a long discriminant function, which is the result of LAGEP, every layer can evolve with short individuals. For each population, we propose an adaptive mutation rate tuning method to increase the mutation rate based on fitness values and remaining generations. Several experiments are conducted with different settings of LAGEP and several real-world medical problems. Experiment results show that LAGEP achieves comparable accuracy to single population GP in much less time.

Original languageEnglish
Pages (from-to)2211-2225
Number of pages15
JournalPattern Recognition
Issue number8
Publication statusPublished - 2007 Aug
Externally publishedYes


  • Classification
  • Evolutionary computation
  • Multi-population genetic programming

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Artificial Intelligence


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