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Improved Teaching-Learning-Based Optimization Algorithm and its Application in PID Parameter Optimization
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Author(s): Fahui Gu (Jiangxi Applied Technology Vocational College, Jiangx, China), Wenxiang Wang (Jiangxi Applied Technology Vocational College, Jiangx, China)and Luyan Lai (Jiangxi Environmental Engineering Vocational College, Jiangx, China)
Copyright: 2019
Volume: 13
Issue: 2
Pages: 17
Source title:
International Journal of Cognitive Informatics and Natural Intelligence (IJCINI)
Editor(s)-in-Chief: Kangshun Li (South China Agricultural University, China)
DOI: 10.4018/IJCINI.2019040101
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Abstract
The teaching-learning-based optimization (TLBO) algorithm has been applied to many optimization problems, but its theoretical basis is relatively weak, its control parameters are difficult to choose, and it converges slowly in the late period and makes it too early to mature. To overcome these shortcomings, this article proposes a dual-population co-evolution teaching and learning optimization algorithm (DPCETLBO) in which adaptive learning factors and a multi-parent non-convex hybrid elite strategy are introduced for a population with high fitness values to improve the convergence speed of the algorithm, while an opposition-based learning algorithm with polarization is introduced for a population with lower fitness values to improve the global search ability of the algorithm. In a proportion integration differentiation (PID) parameter optimization experiment, the simulation results indicate that the convergence of the DPCETLBO algorithm is fast and precise, and its global search ability is superior to those of the TLBO, ETLBO and PSO algorithms.
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