篇名 | A Particle Swarm Optimization Algorithm Based on Multi-Subgroup Harmony Search |
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卷期 | 31:6 |
作者 | Qi-Wen Zhang 、 Fang-Fang Zhang |
頁次 | 116-126 |
關鍵字 | harmony search 、 hierarchical optimization 、 multi-subgroup 、 particle swarm optimization 、 EI 、 MEDLINE 、 Scopus |
出刊日期 | 202012 |
DOI | 10.3966/199115992020123106010 |
In order to address the problem that the harmony search and particle swarm optimization algorithms are easy to fall into local optimum when solving high-dimensional complex problems, a particle swarm optimization algorithm based on multi-subgroup harmony search (i.e. PSO-LHS) is proposed. With respect to the PSO-LHS, we introduce the Levy flight and give the parameter adaptive adjustment method in the harmony search algorithm. By the aid of a hierarchical search strategy for enhancing the global search ability of PSO-LHS, the bottom layer is composed of a series of sub-populations with the Levy flight harmony search algorithm. Moreover, the upper layer consists of the optimal individuals of each sub-population to form an elite group, and the particle swarm algorithm is used for improving the accuracy of local search. In the process of searching, the sub-population exchanges information with the upper elite to improve the diversity and search efficiency of the population. The experimental results demonstrate that our PSO-LHS algorithm has better efficiency and global convergence compared with HS, PSO and improved HS algorithm.