| 水库控制流域汛期分期的有效聚类分析 |
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| 引用本文： | 王宗志,王银堂,胡四一.水库控制流域汛期分期的有效聚类分析[J].水科学进展,2007,18(4):580-585. |
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| 作者姓名： | 王宗志 王银堂 胡四一 |
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| 作者单位： | 南京水利科学研究院, 水文水资源与水利工程科学国家重点实验室, 江苏, 南京, 210029 |
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| 基金项目： | 水利部资助项目;国家科技支撑计划重点项目 |
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| 摘 要： | 受诸多因素影响的水库汛期分期其实质是一个聚类数目未确知的高维时间序列聚类问题,它要求聚类方法具有能处理高维和时序性数据,且能同时回答聚为几类最为合理的能力。鉴于目前常规聚类方法不同时具备这些能力,在模糊C-均值聚类和紧密与分离聚类有效函数的基础上,提出了能够处理高维时序聚类问题的动态模糊C-均值聚类分析方法和相应的时序聚类有效性函数,耦合二者建立了适用于汛期分期的有效模糊聚类分析方法,提出采用实码加速遗传算法优化求解,克服了模糊C-均值聚类方法常规迭代优化求解对初值敏感的困难,并给出了完备的建模步骤和模型的合理性检验。最后,将模型应用于滦河流域潘家口水库汛期分期中,得出了合理的结论。
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| 关 键 词： | 洪水资源 汛期分期 模糊C-均值聚类 聚类有效性 遗传算法 |
| 文章编号： | 1001-6791（2007）04-0580-06 |
| 收稿时间： | 2006-08-07 |
| 修稿时间： | 2006-08-072007-02-08 |
Effective fuzzy cluster method for dividing reservoir flood season |
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| WANG Zong-zhi,WANG Yin-tang,HU Si-yi.Effective fuzzy cluster method for dividing reservoir flood season[J].Advances in Water Science,2007,18(4):580-585. |
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| Authors: | WANG Zong-zhi WANG Yin-tang HU Si-yi |
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| Institution: | State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China |
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| Abstract: | The division of reservoir flood season is a multi-dimension time series cluster question of the unknown number of cluster,so the cluster methods are in demanded to hold the capacities of dealing with multi-dimension,time series and cluster validity.But no one can meet all these needs.Therefore,based on the fuzzy C-means cluster method and the compact and separate cluster validity function,a dynamic fuzzy C-means clustering method and corresponding cluster validity function based time are put forward,and a set of self-contained modeling steps is taken coupling the two methods above.There is a complex nonlinear optimal question in the model,and the regular optimal method is very difficult to solve it.By using the real coding based accelerating genetic algorithm to solve it is very effective and can overcome the initialization value sensitivity difficulty from the regular iterative optimal method used for the fuzzy C-means cluster.Its test and application results show that it is very effective. |
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| Keywords: | flood resources utilization division of flood season fuzzy C-means cluster cluster validity genetic algorithm |
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