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:: Volume 6, Issue 1 (1-2020) ::
2020, 6(1): 4-33 Back to browse issues page
An Improved Particle Swarm Optimizer Based on a Novel Class of Fast and Efficient Learning Factors Strategies
Mohammad Javad Amoshahy , Mousa Shamsi * , Mohammad Hossein Sedaaghi
Faculty of Biomedical Engineering, Sahand University of Technology, Tabriz , shamsi@sut.ac.ir
Abstract:   (10969 Views)
The particle swarm optimizer (PSO) is a population-based metaheuristic optimization method that can be applied to a wide range of problems but it has the drawbacks like it easily falls into local optima and suffers from slow convergence in the later stages. In order to solve these problems, improved PSO (IPSO) variants, have been proposed. To bring about a balance between the exploration and exploitation characteristics of PSO, this paper introduces computationally fast and efficient IPSO algorithms based on a novel class of exponential learning factors (ELF-PSO). This class contains time-varying exponential learning factors (TELF), random exponential learning factors (RELF), self-adjusting exponential learning factors (SELF) and linear-exponential learning factors (LELF) strategies. Experiment is performed and compared with a set of well-known constant, random, time-varying and adaptive learning factors strategies on a suite of nonlinear benchmark functions. The experimental results and statistical analysis prove that ELF-PSO algorithms are able to solve a wide range of difficult nonlinear optimization problems efficiently. Also these results show that the proposed methods outperform other algorithms in most cases.
Keywords: Improved particle swarm optimization algorithm, Adaptive learning factors, Time-varying learning factors, Nonlinear benchmark functions
Full-Text [PDF 1933 kb]   (3946 Downloads)    
Type of Study: Research | Subject: Soft Computing
Received: 2018/12/12 | Accepted: 2019/04/2 | Published: 2020/01/22
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Amoshahy M J, Shamsi M, Sedaaghi M H. An Improved Particle Swarm Optimizer Based on a Novel Class of Fast and Efficient Learning Factors Strategies. Nonlinear Systems in Electrical Engineering 2020; 6 (1) :4-33
URL: http://journals.sut.ac.ir/jnsee/article-1-230-en.html

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Volume 6, Issue 1 (1-2020) Back to browse issues page
سامانه های غیرخطی در مهندسی برق Journal of Nonlinear Systems in Electrical Engineering
نشریه سامانه‌های غیرخطی در مهندسی برق در خصوص اصول اخلاقی انتشار مقاله، از توصیه‌های «کمیته بین‌المللی اخلاق نشر» موسوم به COPE و «منشور و موازین اخلاق پژوهش» مصوب معاونت پژوهش و فناوری وزارت علوم، تحقیقات و فناوری تبعیت می‌کند.
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