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Improved Dual-Center Particle Swarm Optimization Algorithm

Author

Listed:
  • Zhouxi Qin

    (College of Mathematic and Information, China West Normal University, Nanchong 637009, China)

  • Dazhi Pan

    (College of Mathematic and Information, China West Normal University, Nanchong 637009, China
    Sichuan Colleges and Universities Key Laboratory of Optimization Theory and Applications, Nanchong 637009, China)

Abstract

This paper proposes an improved dual-center particle swarm optimization (IDCPSO) algorithm which can effectively improve some inherent defects of particle swarm optimization algorithms such as being prone to premature convergence and low optimization accuracy. Based on the in-depth analysis of the velocity updating formula, the most innovative feature is the vectorial decomposition of the velocity update formula of each particle to obtain three different flight directions. After combining these three directions, six different flight paths and eight intermediate positions can be obtained. This method allows the particles to search for the optimal solution in a wider space, and the individual extreme values are greatly improved. In addition, in order to improve the global extreme value, it is designed to construct the population virtual center and the optimal individual virtual center by using the optimal position and the current position searched by the particle. Combining the above strategies, an adaptive mutation factor that accumulates the coefficient of mutation according to the number of iterations is added to make the particle escape from the local optimum. By running the 12 typical test functions independently 50 times, the results show an average improvement of 97.9% for the minimum value and 97.7% for the average value. The IDCPSO algorithm in this paper is better than other improved particle swarm optimization algorithms in finding the optimum.

Suggested Citation

  • Zhouxi Qin & Dazhi Pan, 2024. "Improved Dual-Center Particle Swarm Optimization Algorithm," Mathematics, MDPI, vol. 12(11), pages 1-15, May.
    • Handle: RePEc:gam:jmathe:v:12:y:2024:i:11:p:1698-:d:1405316
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    References listed on IDEAS

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    1. Du, Wei & Li, Yanjun & Shi, Jianxin & Sun, Baozhi & Wang, Chunhui & Zhu, Baitong, 2023. "Applying an improved particle swarm optimization algorithm to ship energy saving," Energy, Elsevier, vol. 263(PE).
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