期刊
ADVANCES IN ENGINEERING SOFTWARE
卷 173, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.advengsoft.2022.103276
关键词
LGWO; GWO; Optimization; CEC 2019; Structural health monitoring
类别
资金
- VLIR-UOS TEAM Project - Flemish Government [VN2018TEA479A103]
- Van Lang University, Vietnam
This paper introduces an improved Grey Wolf Optimizer algorithm (LGWO), which enhances the algorithm's performance and convergence speed by changing the direction of movement of the leader wolf and the hunting strategy of the wolves. The algorithm shows good performance on classical benchmarks, CEC 2019 functions, and engineering problems.
In this paper, an improved Grey Wolf Optimizer (GWO) algorithm, termed LGWO, is introduced. The enhanced version is interesting and complementary in terms of the direction of movement of the leader wolf, and a special parameter that allows the faster wolves to prey position. The Le ' vy flight is employed as a special navigation solution for alpha, beta, and delta wolf. In this way, the leader wolf equips a powerful tool to deal with the local search problem. A new principle illustrates the behaviour of omega wolf in hunting is also added to enhance the convergence speed of this algorithm. To investigate the performance of LGWO, a series of problems, namely 23 classical benchmarks, a set of CEC 2019 functions, and three engineering problems, is investigated. Furthermore, LGWO is employed to study structural damage identification in high-dimensional problems. The research appears to show that the performance of LGWO is substantially increased.
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