| SCE-UA、遗传算法和单纯形优化算法的应用 |
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| 引用本文： | 宋星原,舒全英,王海波,廖为民.SCE-UA、遗传算法和单纯形优化算法的应用[J].武汉大学学报(工学版),2009,42(1). |
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| 作者姓名： | 宋星原 舒全英 王海波 廖为民 |
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| 作者单位： | 1. 武汉大学水资源与水电工程国家重点实验室,湖北,武汉,430072
2. 石门水库管理处,湖北,钟祥,431936 |
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| 摘 要： | 简要介绍了在水文模型参数优选中有代表性的3个算法,即SCE-UA(Shuffled Complex Evolution)、遗传算法和改进的单纯形法,采用基于MATLAB的多次独立的复杂函数全局优化测验,并将3种方法应用于三水源新安江模型参数自动优选,对各优化算法的应用效果进行分析比较,并讨论各算法的收敛速度、计算量以及稳定性和有效性.结果表明SCE-UA综合了遗传算法和单纯形法优点,能够全局一致、快速地收敛到全局最优解,取得了较为满意的结果.
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| 关 键 词： | SCE-UA 遗传算法 单纯形法 全局优化 水文模型 |
Comparison and application of SCE-UA, genetic algorithm and simplex method |
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| SONG Xingyuan,SHU Quanying,WANG Haibo,LIAO Weiming.Comparison and application of SCE-UA, genetic algorithm and simplex method[J].Engineering Journal of Wuhan University,2009,42(1). |
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| Authors: | SONG Xingyuan SHU Quanying WANG Haibo LIAO Weiming |
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| Abstract: | Three representative optimization methods in hydrologic parameters optimization are briefly introduced;namely SCE-UA(shuffled complex evolution-University of Arizona),genetic algorithm and revised simplex method.Three optimization methods are tested by optimizing some representative complicated functions based on MATLAB and applied to the automatic parameter calibration of three-component Xinanjiang Model.The application effectiveness of three methods is analyzed and compared.The convergence rate,computational effort,stability as well as efficiency of each algorithm are discussed.The results show that SCE-UA integrating the advantages of genetic algorithm and simplex method can globally,coherently and rapidly converge to optimal solutions and achieve satisfactory results. |
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| Keywords: | SCE-UA |
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