Electronic Science and Technology ›› 2022, Vol. 35 ›› Issue (12): 26-34.doi: 10.16180/j.cnki.issn1007-7820.2022.12.004

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Surrogate Assisted Multi-Objective Particle Swarm Optimization Based on Combined Infill Sampling Criterion

CHEN Wanfen,WANG Yujia,LIN Weixing   

  1. School of Electronic and Electrical Engineering,Shanghai University of Engineering Science, Shanghai 201620,China
  • Received:2021-05-06 Online:2022-12-15 Published:2022-12-13
  • Supported by:
    National Natural Science Foundation of China(61403249)

Abstract:

In view of the problem of low initial optimization efficiency and poor model accuracy when constructing surrogate models with small sample data, a surrogate-assisted multi-objective particle swarm optimization algorithm based on the combined infill sampling criterion is proposed in this study. The algorithm combines the Kriging model and the radial basis function network model into a heterogeneous ensemble model through the weighted average method, and uses the combined infill sampling criterion of the improved expectation criterion and the minimum surrogate model prediction criterion to manage the surrogate model to speed up the convergence of the model. In addition, the proposed algorithm adopts the actual objective function to evaluate the sample points added in each iteration, and updates the surrogate model to increase the model accuracy. The experimental results show that compared with the non-surrogate model algorithm, the proposed algorithm reduces the evaluation times of the fitness function by 10 times, which proves that the proposed algorithm can improve the optimization efficiency and accuracy of the surrogate model, and achieve a better balance between exploration and development.

Key words: surrogate model, Kriging model, radial basis function network model, heterogeneous ensemble, combined infill sampling criterion, fitness function evaluation, model management, multi-objective particle swarm optimization algorithm

CLC Number: 

  • TP18