A population ecology inspired parent selection strategy for numerical constrained optimization problems

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A population ecology inspired parent selection strategy is proposed to improve the searching ability of evolutionary algorithms for numerical constrained optimization problems. This method is mainly used to help find an appropriate number of feasible parents for offspring generation. Based on the similar phenomenon in population ecology, the number of feasible parents has a sigmoid-type relationship with that of the feasible individuals. To implement the novel parent selection strategy, the population is divided into two groups according to the feasibility of the individuals: the feasible group and infeasible group. The evaluation and ranking of these two groups are performed separately. The dynamic penalty method, annealing penalty method and stochastic ranking method are tested with the parent selection strategy on 13 benchmark problems. The results show that the proposed method is capable of improving the searching performance. (c) 2007 Elsevier Inc. All rights reserved.
Publisher
ELSEVIER SCIENCE INC
Issue Date
2007-07
Language
English
Article Type
Article
Citation

APPLIED MATHEMATICS AND COMPUTATION, v.190, pp.292 - 304

ISSN
0096-3003
DOI
10.1016/j.amc.2007.01.027
URI
http://hdl.handle.net/10203/12752
Appears in Collection
EE-Journal Papers(저널논문)
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