4.7 Article

A Hybrid Whale Optimization Algorithm for Global Optimization

期刊

MATHEMATICS
卷 9, 期 13, 页码 -

出版社

MDPI
DOI: 10.3390/math9131477

关键词

whale optimization algorithm; genetic algorithm; thermal exchange optimization; optimization problems

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This study introduces a hybrid whale optimization algorithm that combines genetic and thermal exchange optimization methods, enhancing global optimization capability. The algorithm demonstrates accuracy and competitiveness on benchmark test functions and datasets, performing excellently in solving optimization problems.
This paper proposes a hybrid whale optimization algorithm (WOA) that is derived from the genetic and thermal exchange optimization-based whale optimization algorithm (GWOA-TEO) to enhance global optimization capability. First, the high-quality initial population is generated to improve the performance of GWOA-TEO. Then, thermal exchange optimization (TEO) is applied to improve exploitation performance. Next, a memory is considered that can store historical best-so-far solutions, achieving higher performance without adding additional computational costs. Finally, a crossover operator based on the memory and a position update mechanism of the leading solution based on the memory are proposed to improve the exploration performance. The GWOA-TEO algorithm is then compared with five state-of-the-art optimization algorithms on CEC 2017 benchmark test functions and 8 UCI repository datasets. The statistical results of the CEC 2017 benchmark test functions show that the GWOA-TEO algorithm has good accuracy for global optimization. The classification results of 8 UCI repository datasets also show that the GWOA-TEO algorithm has competitive results with regard to comparison algorithms in recognition rate. Thus, the proposed algorithm is proven to execute excellent performance in solving optimization problems.

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