Energy valley optimizer: a novel metaheuristic algorithm for global and engineering optimization

• Published in: Scientific reports Vol. 13; no. 1; p. 226
• Main Authors: Azizi, Mahdi, Aickelin, Uwe, A. Khorshidi, Hadi, Baghalzadeh Shishehgarkhaneh, Milad
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 05-01-2023; Nature Publishing Group; Nature Portfolio
• Subjects: 639/705/1042; 639/705/117; Adaptation; Algorithms; Benchmarking; Benchmarks; Biological Evolution; Civil engineering; Data Collection; Decision making; Engineering; Evolution; Genetic algorithms; Humanities and Social Sciences; Linear programming; multidisciplinary; Objective function; Optimization algorithms; Science; Science (multidisciplinary); Statistical analysis; Statistics; Universe
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-022-27344-y

In this paper, Energy Valley Optimizer (EVO) is proposed as a novel metaheuristic algorithm inspired by advanced physics principles regarding stability and different modes of particle decay. Twenty unconstrained mathematical test functions are utilized in different dimensions to evaluate the proposed algorithm's performance. For statistical purposes, 100 independent optimization runs are conducted to determine the statistical measurements, including the mean, standard deviation, and the required number of objective function evaluations, by considering a predefined stopping criterion. Some well-known statistical analyses are also used for comparative purposes, including the Kolmogorov–Smirnov, Wilcoxon, and Kruskal–Wallis analysis. Besides, the latest Competitions on Evolutionary Computation (CEC), regarding real-world optimization, are also considered for comparing the results of the EVO to the most successful state-of-the-art algorithms. The results demonstrate that the proposed algorithm can provide competitive and outstanding results in dealing with complex benchmarks and real-world problems.