Enhanced Grey Wolf Optimizer With Adaptive Control And Chaotic Initialization For Global Optimization
DOI:
https://doi.org/10.63561/jmns.v2i3.861Keywords:
Grey Wolf Optimizer, Chaotic Map, Adaptive Parameter Control, Continuous Optimization, Metaheuristic AlgorithmsAbstract
This paper presents a novel enhancement to the Grey Wolf Optimizer (GWO) by integrating two key mechanisms: chaotic population initialization using the logistic map and adaptive parameter control through nonlinear decay. The proposed Enhanced Grey Wolf Optimizer (EGWO) aims to overcome common limitations of standard GWO, such as premature convergence and poor exploitation in high-dimensional search spaces. The chaotic initialization promotes early-stage diversity, while the adaptive strategy ensures a dynamic balance between exploration and exploitation. EGWO is evaluated across fifteen well-known benchmark functions in 30 dimensions. Compared to standard GWO, it achieves up to a 30% faster convergence and a 25% improvement in solution accuracy. Statistical tests confirm EGWO’s consistent superiority in both performance and robustness, making it a competitive algorithm for solving complex global optimization problems.
References
Abdollahzadeh, B., & Gharehchopogh, F. S. (2021). An improved grey wolf optimizer for solving numerical optimization problems. Soft Computing, 25(4), 2675–2692.
Abualigah, L., Yousri, D., Abd Elaziz, M., & Al-Qaness, M. A. A. (2022). Aquila Optimizer: A novel metaheuristic optimization algorithm. Computers & Industrial Engineering, 157, 107250. https://doi.org/10.1016/j.cie.2021.107250 Alatas, B. (2010). Chaotic bee colony algorithms for global numerical optimization. Expert Systems with Applications, 37(8), 5682–5687. https://doi.org/10.1016/j.eswa.2010.02.042 Emary, E., Zawbaa, H. M., & Hassanien, A. E. (2016). Binary grey wolf optimizer and its application for feature selection. Neurocomputing, 172, 371–381. https://doi.org/10.1016/j.neucom.2015.06.083 Faris, H., Aljarah, I., Mirjalili, S., & Al-Zoubi, A. M. (2018). Grey wolf optimizer: A review of recent advances and applications. Neural Computing and Applications, 30(2), 413–435. https://doi.org/10.1007/s00521-017-3272-5 Gandomi, A. H., Yang, X. S., & Alavi, A. H. (2013). Cuckoo search algorithm: A metaheuristic approach to solve structural optimization problems. Engineering with Computers, 29(1), 17–35. https://doi.org/10.1007/s00366-011-0241-y Gupta, A., & Deep, K. (2019). A novel modified Grey Wolf Optimizer for global optimization. Applied Soft Computing, 76, 155–172. Heidari, A. A., Mirjalili, S., Faris, H., Aljarah, I., & Mafarja, M. (2019). Harris hawks optimization: A novel nature-inspired algorithm. Engineering Applications of Artificial Intelligence, 87, 103345. Mirjalili, S., Mirjalili, S. M., & Lewis, A. (2014). Grey wolf optimizer. Advances in Engineering Software, 69, 46–61. https://doi.org/10.1016/j.advengsoft.2013.12.007 Mohamed, A. W., Hafez, A. M., & Zawbaa, H. M. (2021). A survey of improved Grey Wolf Optimizer techniques. Expert Systems with Applications, 165, 113861. Saremi, S., Mirjalili, S., & Lewis, A. (2017). Grasshopper Optimisation Algorithm: Theory and application. Advances in Engineering Software, 105, 30–47. https://doi.org/10.1016/j.advengsoft.2017.01.004 Tizhoosh, H. R. (2005). Opposition-Based Learning: A new scheme for machine intelligence. International Conference on Computational Intelligence for Modelling, Control and Automation, 1, 695–701. Wang, G. G., Deb, S., & Coelho, L. D. S. (2015). Chaotic ant lion optimizer for solving engineering optimization problems. Engineering Applications of Artificial Intelligence, 47, 136–155. Wang, G., Deb, S., Cui, Z., & Gao, X. (2020). Oppositional-based grey wolf optimizer with Cauchy mutation and its applications. Expert Systems with Applications, 162, 113709. Xu, J., Sun, J., Liu, H., & Wu, C. (2022). Improved Grey Wolf Optimizer based on hybrid strategies for optimization problems. Applied Soft Computing, 115, 108193. Yang, X. S., & Deb, S. (2012). Multiobjective cuckoo search for design optimization. Computers & Operations Research, 40(6), 1616–1624. https://doi.org/10.1016/j.cor.2011.09.026 Yazdani, M., & Jolai, F. (2016). Lion Optimization Algorithm (LOA): A nature-inspired metaheuristic algorithm. Journal of Computational Design and Engineering, 3(1), 24–36. https://doi.org/10.1016/j.jcde.2015.06.003 Zhao, W., Wang, L., & Zhang, Z. (2023). A review of improvements on Grey Wolf Optimizer and its applications. Information Sciences, 635, 25–57.