| 基于主成分分析的洪水相似性研究 |
| |
| 引用本文： | 万新宇,包为民,荆艳东,易建军. 基于主成分分析的洪水相似性研究[J]. 水电能源科学, 2007, 25(5): 36-39 |
| |
| 作者姓名： | 万新宇 包为民 荆艳东 易建军 |
| |
| 作者单位： | 1. 河海大学,水文水资源学院,江苏,南京,210098
2. 黄河水利委员会,水文局,河南,郑州,450004 |
| |
| 基金项目： | 国家科技支撑计划课题基金 |
| |
| 摘 要： | 针对在洪水相似性研究中选择洪水指标过多会增加计算的复杂性以及信息重叠而导致计算结果失真等问题,提出了基于主成分分析的洪水相似性研究方法,将原洪水指标综合为少数几个不相关的主成分,再根据各场洪水的主成分进行洪水相似性分析。计算实例结果表明,该方法切实可行。
|
| 关 键 词： | 洪水 相似性 主成分分析 |
| 文章编号： | 1000-7709（2007）05-0036-04 |
| 修稿时间： | 2007-06-09 |
Study on Flood Similarity Based on Principal Components Analysis |
| |
| WAN Xinyu,BAO Weimin,JING Yandong,YI Jianjun. Study on Flood Similarity Based on Principal Components Analysis[J]. International Journal Hydroelectric Energy, 2007, 25(5): 36-39 |
| |
| Authors: | WAN Xinyu BAO Weimin JING Yandong YI Jianjun |
| |
| Affiliation: | 1. College of Water Resources and Environment, Hohai Univ. , Nanjing 210098, China; 2. Hydrology Bureau of Yellow River Conservancy Committee, Zhengzhou 450004, China |
| |
| Abstract: | In study the similarity of floods,choosing too many indexes may increase the computational complexity and overlapped information can lead to the distorted results.This paper proposes the method based on the principal components analysis to study the similarity of floods,which integrates the flood indexes into few number of uncorrelated principal components and then analyses the similarity of floods.The instance simulated results demonstrate the method is feasible. |
| |
| Keywords: | flood similarity principal components analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
