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Intelligent evolutionary algorithms for large parameter optimization problems

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3 Author(s)
Shinn-Ying Ho ; Dept. of Biol. Sci. & Technol., Nat. Chiao Tung Univ., Hsin-Chu, Taiwan ; Li-Sun Shu ; Jian-Hung Chen

This work proposes two intelligent evolutionary algorithms IEA and IMOEA using a novel intelligent gene collector (IGC) to solve single and multiobjective large parameter optimization problems, respectively. IGC is the main phase in an intelligent recombination operator of IEA and IMOEA. Based on orthogonal experimental design, IGC uses a divide-and-conquer approach, which consists of adaptively dividing two individuals of parents into N pairs of gene segments, economically identifying the potentially better one of two gene segments of each pair, and systematically obtaining a potentially good approximation to the best one of all combinations using at most 2N fitness evaluations. IMOEA utilizes a novel generalized Pareto-based scale-independent fitness function for efficiently finding a set of Pareto-optimal solutions to a multiobjective optimization problem. The advantages of IEA and IMOEA are their simplicity, efficiency, and flexibility. It is shown empirically that IEA and IMOEA have high performance in solving benchmark functions comprising many parameters, as compared with some existing EAs.

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Evolutionary Computation, IEEE Transactions on  (Volume:8 ,  Issue: 6 )