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  2014, Vol. 27 Issue (12): 1078-1088    DOI:
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Co-evolutionary Multi-objective Optimization Algorithm with Polymorphous Populations
CHEN Zhen-Xing, YAN Xuan-Hui, WU Kun-An
College of Mathematics and Computer Science, Fujian Normal University, Fuzhou 350007

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Abstract  To improve the diversity maintenance ability of evolutionary multi-objective optimization algorithms and obtain a set of better distributed non-dominated solutions, a co-evolutionary multi-objective optimization algorithm with polymorphous populations is proposed. Firstly, a co-evolutionary frame of polymorphous populations is designed. Next, by introducing the minimum vectorial angle which is capable of measuring the similarity between different Pareto-ranked solutions, a selection strategy for suboptimum non-dominated solutions is proposed to enhance the diversity of populations. Finally, a population removal strategy based on an ordered link-list is put forward. Thus, the uniformity and the spread of the solutions are improved. Compared with some typical algorithms, the proposed algorithm has good convergence and remains a better diversity and uniformity.
Key wordsMulti-objective Optimization      Co-evolution      Polymorphous Population      Vectorial Angle      Ordered Link-List     
Received: 09 September 2013     
ZTFLH: TP183  
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CHEN Zhen-Xing
YAN Xuan-Hui
WU Kun-An
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CHEN Zhen-Xing,YAN Xuan-Hui,WU Kun-An. Co-evolutionary Multi-objective Optimization Algorithm with Polymorphous Populations[J]. , 2014, 27(12): 1078-1088.
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http://manu46.magtech.com.cn/Jweb_prai/EN/      OR     http://manu46.magtech.com.cn/Jweb_prai/EN/Y2014/V27/I12/1078
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