基于遗传算法的暴雨强度公式参数的优化 |
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引用本文: | 李祚泳,彭荔红. 基于遗传算法的暴雨强度公式参数的优化[J]. 高原气象, 2003, 22(6): 637-639 |
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作者姓名: | 李祚泳 彭荔红 |
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作者单位: | 成都信息工程学院,科学技术研究所,四川,成都,610041;厦门大学,环境科学研究中心,福建,厦门,361005 |
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基金项目: | 九五国家重点科技攻关项目(96 911 08 03),成都信息工程学院院管课题资助 |
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摘 要: | 遗传算法是模型参数优化的一种有效方法。将遗传算法应用于北京市郊区不同重现期的暴雨强度与降雨历时关系式中参数的优化,并与传统回归法和优选回归法的优化效果进行了分析比较。实例计算结果表明:遗传算法用于暴雨强度公式中的参数估计精度高于传统回归法和优选回归法的参数估计精度。该方法具有直观、简便和实用特点。
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关 键 词: | 遗传算法 暴雨强度 参数优化 |
文章编号: | 1000-0534(2003)06-0637-03 |
修稿时间: | 2002-01-13 |
Parameter Optimization of Heavy Rain Intensity Formula Based on Genetic Algorithm |
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Abstract: | Genetic Algorithm (GA) is an effective method for parameter optimization of model. Genetic algorithm was applied to optimize the parameters of storm rainfall intensity formulae of different repeat periods in Beijing suburban. Comparisons of optimum results between the genetic algorithm method and the traditional regression method as well as optimum seeking method were performed. The calculated results show that the use of GA method estimation precisions of parameters in the storm rainfall intensity formula is highter than that of traditional regression and optimum seeking methods. The method has the objectivity, simplicity and effectiveness. |
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Keywords: | Genetic algorithm Heavy rain intensity Parameter optimization |
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