A quasi-opposition learning and chaos local search based on walrus optimization for global optimization problems
Abstract The Walrus Optimization (WO) algorithm, as an emerging metaheuristic algorithm, has shown excellent performance in problem-solving, however it still faces issues such as slow convergence and susceptibility to getting trapped in local optima. To this end, the study proposes a novel WO enhanc...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-85751-3 |
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| author | Yier Li Lei Li Zhengpu Lian Kang Zhou Yuchen Dai |
| author_facet | Yier Li Lei Li Zhengpu Lian Kang Zhou Yuchen Dai |
| author_sort | Yier Li |
| collection | DOAJ |
| description | Abstract The Walrus Optimization (WO) algorithm, as an emerging metaheuristic algorithm, has shown excellent performance in problem-solving, however it still faces issues such as slow convergence and susceptibility to getting trapped in local optima. To this end, the study proposes a novel WO enhanced by quasi-oppositional-based learning and chaotic local search mechanisms, called QOCWO. The study aims to prevent premature convergence to local optima and enhance the diversity of the population by integrating the quasi-oppositional-based learning mechanism into the original Walrus Optimization (WO) algorithm, thereby improving the global search capability and expanding the search range. Additionally, the chaotic local search mechanism is introduced to accelerate the convergence speed of WO. To test the capabilities, the QOCWO algorithm is applied to the 23 standard functions and compared with seven other algorithms. Furthermore, the Wilcoxon rank-sum test is utilized to evaluate the significance of the results, which demonstrates the superior performance of the proposed algorithm. To assess the practicality in solving real-world problems, the QOCWO is applied to two engineering design issues, and the results indicated that QOCWO achieved lower costs compared to other algorithms. |
| format | Article |
| id | doaj-art-4fc75c06ae244fc8a7531244fdedb7d9 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-4fc75c06ae244fc8a7531244fdedb7d92025-01-26T12:31:18ZengNature PortfolioScientific Reports2045-23222025-01-0115111810.1038/s41598-025-85751-3A quasi-opposition learning and chaos local search based on walrus optimization for global optimization problemsYier Li0Lei Li1Zhengpu Lian2Kang Zhou3Yuchen Dai4College of Engineering, Zhejiang Normal UniversityCollege of Engineering, Zhejiang Normal UniversityCollege of Engineering, Zhejiang Normal UniversityJD Logistics, Inc.College of Engineering, Zhejiang Normal UniversityAbstract The Walrus Optimization (WO) algorithm, as an emerging metaheuristic algorithm, has shown excellent performance in problem-solving, however it still faces issues such as slow convergence and susceptibility to getting trapped in local optima. To this end, the study proposes a novel WO enhanced by quasi-oppositional-based learning and chaotic local search mechanisms, called QOCWO. The study aims to prevent premature convergence to local optima and enhance the diversity of the population by integrating the quasi-oppositional-based learning mechanism into the original Walrus Optimization (WO) algorithm, thereby improving the global search capability and expanding the search range. Additionally, the chaotic local search mechanism is introduced to accelerate the convergence speed of WO. To test the capabilities, the QOCWO algorithm is applied to the 23 standard functions and compared with seven other algorithms. Furthermore, the Wilcoxon rank-sum test is utilized to evaluate the significance of the results, which demonstrates the superior performance of the proposed algorithm. To assess the practicality in solving real-world problems, the QOCWO is applied to two engineering design issues, and the results indicated that QOCWO achieved lower costs compared to other algorithms.https://doi.org/10.1038/s41598-025-85751-3Walrus optimizationMetaheuristic algorithmChaotic local searchQuasi-oppositional based learning |
| spellingShingle | Yier Li Lei Li Zhengpu Lian Kang Zhou Yuchen Dai A quasi-opposition learning and chaos local search based on walrus optimization for global optimization problems Scientific Reports Walrus optimization Metaheuristic algorithm Chaotic local search Quasi-oppositional based learning |
| title | A quasi-opposition learning and chaos local search based on walrus optimization for global optimization problems |
| title_full | A quasi-opposition learning and chaos local search based on walrus optimization for global optimization problems |
| title_fullStr | A quasi-opposition learning and chaos local search based on walrus optimization for global optimization problems |
| title_full_unstemmed | A quasi-opposition learning and chaos local search based on walrus optimization for global optimization problems |
| title_short | A quasi-opposition learning and chaos local search based on walrus optimization for global optimization problems |
| title_sort | quasi opposition learning and chaos local search based on walrus optimization for global optimization problems |
| topic | Walrus optimization Metaheuristic algorithm Chaotic local search Quasi-oppositional based learning |
| url | https://doi.org/10.1038/s41598-025-85751-3 |
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