| 基于BP网络的洪灾风险评价算法 |
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| 引用本文： | 杨乐婵,邓松,徐建辉.基于BP网络的洪灾风险评价算法[J].微机发展,2010(4):232-234,238. |
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| 作者姓名： | 杨乐婵 邓松 徐建辉 |
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| 作者单位： | 滁州学院国土信息工程系;国网电力科学研究院信息网络安全实验室; |
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| 基金项目： | 安徽省科研计划项目(2008jq1115) |
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| 摘 要： | 为了解决洪灾风险评价问题，文中在分析传统洪灾风险评价算法不足的基础上，结合BP网络特点，提出了基于BP网络的洪灾风险评价算法（Flood Risk Evaluation algorithm on BPNet，FRE—BPN），同时为了解决BP算法对复杂高维样本数据建模效率差、精度低的缺陷，利用粗糙集对BP网络进行约简。仿真实验表明，粗糙集约简使得BP网络大大降低了洪灾风险评价模型建立的复杂度，同时FRE-BPN算法对洪灾数据集进行风险评价时的平均耗时大大下降。
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| 关 键 词： | 洪灾风险评价 粗糙集 BP网络 属性约简 |
Flood Risk Evaluation Algorithm on BP Net |
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| YANG Le-chan,DENG Song,XU Jian-hui.Flood Risk Evaluation Algorithm on BP Net[J].Microcomputer Development,2010(4):232-234,238. |
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| Authors: | YANG Le-chan DENG Song XU Jian-hui |
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| Affiliation: | YANG Le-chan1,DENG Song2,XU Jian-hui1 (1.L, Information Engineering Department Cuzhou University,Cuzhou 210093,China,2.Information Network Security Laboratory,State Grid Electric Power Research Institute,Nanjing 210003,China) |
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| Abstract: | To solve flood risk evaluation,presents Flood Risk Evaluation algorithm on BP Net(FRE-BPN),which combines BP net to solve problems of traditional flood risk evaluation algorithm.Meanwhile,in order to solve the defect of BP net for inefficiency and low accuracy of data modeling,BP net is reducted by rough set.By experiments,it's showed that the complexity which BP created flood risk evaluation model is reduced greatly by reduction with rough set,and the average consumptive time of FRE-BPN decreases apparentl... |
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| Keywords: | flood risk evaluation rough set BP net attribution reduction |
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