• 论文 •    

基于双极偏好占优的多目标进化算法及其应用

邱飞岳,吴裕市,王丽萍   

  1. 1.浙江工业大学 教育科学与技术学院,浙江杭州310023;2.浙江工业大学 信息工程学院,浙江杭州310023;3.浙江工业大学 智能信息处理研究所,浙江杭州310023
  • 出版日期:2012-12-15 发布日期:2012-12-25

Multi-objective evolutionary algorithm based on bipolar preferences dominance and its application

QIU Fei-yue,WU Yu-shi,WANG Li-ping   

  1. 1.College of Education Science and Technology, Zhejiang University of Technology, Hangzhou 310023, China; 2.College of Information Engineering, Zhejiang University of Technology, Hangzhou 310023, China; 3.Institute of Intelligence Information Processing, Zhejiang University of Technology, Hangzhou 310023, China
  • Online:2012-12-15 Published:2012-12-25

摘要: 为有效处理决策者能够提供双极偏好信息的多目标优化问题,加快原有算法的收敛速度,借鉴逼近理想解方法和搜索空间区域划分思想,定义了一种新型双极偏好占优关系,并引入到NSGA-Ⅱ算法中,设计了相应的非支配排序策略、种群多样性策略和约束处理策略,提出一种基于双极偏好占优的NSGA-Ⅱ算法(2p-NSGA-Ⅱ)。将该算法应用于求解两桁架结构设计的工程问题,对比仿真实验结果表明了2p-NSGA-Ⅱ算法的有效性。

关键词: 多目标优化, 进化算法, 双极偏好, 两桁架结构设计

Abstract: To address the multi-objective optimization problems with bipolar preferences and to accelerate the convergence speed of original algorithm, a new bipolar preference dominance relationship based on Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS) and the idea of search space dividing was defined. By introducing this relationship to Nondominated Sorting Genetic Algorithm Ⅱ(NSGA-Ⅱ), the corresponding strategies which included non-dominated-sorting procedure, population diversity and constraint-handling were designed. Thus a Bipolar Preference Dominance Based Nondominated Sorting Genetic Algorithm Ⅱ(2p-NSGA-Ⅱ) was proposed. This algorithm was applied to the engineering problem of two bar truss design, the comparison result showed the effectiveness of 2p-NSGA-Ⅱ.

Key words: multi-objective optimization, evolutionary algorithm, bipolar preferences, two bar truss design

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