An Empirical Investigation of Multi-Parent Recombination Operators in Evolution Strategies (1997)
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BibTeX
@MISC{Eiben97anempirical,
author = {A. E. Eiben and T. Bäck and Informatik Centrum Dortmund and Niels Bohrweg and Niels Bohrweg},
title = {An Empirical Investigation of Multi-Parent Recombination Operators in Evolution Strategies},
year = {1997}
}
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Abstract
An extension of evolution strategies to multi-parent recombination involving a variable number % of parents to create an offspring individual is proposed. The extension is experimentally evaluated on a test suite of functions differring in their modality, separability and the regular, respectively irregular arrangement of their local optima. Multi-parent diagonal crossover, uniform scanning crossover, and a multi-parent version of intermediary recombination are considered in the experiments. The performance of the algorithm is observed to depend on the particular combination of recombination operator and objective function. In most of the cases a significant increase of performance is observed as the number of parents increases. However, there might also be no significant impact of recombination at all, and for one of the unimodal objective functions the performance is observed to deteriorate over the course of evolution for certain choices of the recombination operator and the number ...
