Huang Yourui, Liu Quanzeng, Song Hongping, Han Tao, Li Tingting
Anhui University of Science and Technology, Huainan, 232001, China.
Heliyon. 2024 Jul 14;10(14):e34496. doi: 10.1016/j.heliyon.2024.e34496. eCollection 2024 Jul 30.
The grey wolf optimizer is a widely used parametric optimization algorithm. It is affected by the structure and rank of grey wolves and is prone to falling into the local optimum. In this study, we propose a grey wolf optimizer for fusion cell-like P systems. Cell-like P systems can parallelize computation and communicate from cell membrane to cell membrane, which can help the grey wolf optimizer jump out of the local optimum. Design new convergence factors and use different convergence factors in other cell membranes to balance the overall exploration and utilization capabilities of the algorithm. At the same time, dynamic weights are introduced to accelerate the convergence speed of the algorithm. Experiments are performed on 24 test functions to verify their global optimization performance. Meanwhile, a support vector machine model optimized by the grey wolf optimizer for fusion cell-like P systems has been developed and tested on six benchmark datasets. Finally, the optimizing ability of grey wolf optimizer for fusion cell-like P systems on constrained optimization problems is verified on three real engineering design problems. Compared with other algorithms, grey wolf optimizer for fusion cell-like P systems obtains higher accuracy and faster convergence speed on the test function, and at the same time, it can find a better parameter set stably for the optimization of support vector machine parameters, in addition to being more competitive on constrained engineering design problems. The results show that grey wolf optimizer for fusion cell-like P systems improves the searching ability of the population, has a better ability to jump out of the local optimum, has a faster convergence speed, and has better stability.
灰狼优化器是一种广泛使用的参数优化算法。它受灰狼结构和等级的影响,容易陷入局部最优。在本研究中,我们提出了一种用于融合类细胞P系统的灰狼优化器。类细胞P系统可以并行计算并通过细胞膜与细胞膜进行通信,这有助于灰狼优化器跳出局部最优。设计新的收敛因子,并在其他细胞膜中使用不同的收敛因子,以平衡算法的整体探索和利用能力。同时,引入动态权重以加速算法的收敛速度。在24个测试函数上进行实验以验证其全局优化性能。同时,开发了一种由用于融合类细胞P系统的灰狼优化器优化的支持向量机模型,并在六个基准数据集上进行了测试。最后,在三个实际工程设计问题上验证了用于融合类细胞P系统的灰狼优化器在约束优化问题上的优化能力。与其他算法相比,用于融合类细胞P系统的灰狼优化器在测试函数上获得了更高的精度和更快的收敛速度,同时,它可以稳定地找到更好的参数集用于支持向量机参数的优化,此外,在约束工程设计问题上更具竞争力。结果表明,用于融合类细胞P系统的灰狼优化器提高了种群的搜索能力,具有更好的跳出局部最优的能力,收敛速度更快,稳定性更好。