###
DOI:
工程科学与技术:2008,40(5):22-26
本文二维码信息
码上扫一扫!
水资源评价的投影寻踪动态聚类模型
(中国气象局 成都高原气象研究所,四川 成都 610072)
Application of Projection Pursuit Dynamic Cluster Model in Water Resources Assessment
摘要
图/表
参考文献
相似文献
本文已被:浏览 1792次   下载 171
投稿时间:2007-09-06    
中文摘要: 以投影寻踪理论为基础,利用动态聚类方法构建投影指标,建立了水资源评价的投影寻踪动态聚类模型。该模型是投影寻踪与动态聚类的有机结合,完全依据数据样本特征进行水资源评价,整个过程毋需人为给定参数,客观性强,操作简便。实例分析表明,利用投影寻踪动态聚类模型进行水资源评价有效、可行,是水资源评价的一种新方法。
Abstract:A projection pursuit dynamic cluster model is developed, and it is used in water resources assessment for the first time.The projection pursuit dynamic cluster model combines projection pursuit principle with dynamic cluster method.Firstly,multifactor assessment problem can be converted into single factor (projected characteristic value) assessment problem according to linear projection.Secondly,a new projection index on the basis of dynamic cluster rule is constructed, which avoids the problem of parameter calibration in the assessment process successfully.In projection pursuit dynamic cluster model, the assessment results obtained from the characteristics of data set are more objective and less subjective.Finally,a case study of water resources assessment is conducted.A comparison of the water resources assessment for river basins along the coast of Liaoning Province shows that the results from the projection pursuit dynamic cluster model are reasonable and effective.The projection pursuit dynamic cluster model is a new method for water resources assessment and also a new approach to multi factor assessment.
文章编号:20080504     中图分类号:    文献标志码:
基金项目:中国气象局成都高原气象研究所科研资助项目(BROP200701,PMP2006005,LPM2005014);四川省气象局重点科研项目(2006-2);中国气象局气候变化专项基金(CCSF2007-23)
作者简介:
引用文本:
王顺久.水资源评价的投影寻踪动态聚类模型[J].工程科学与技术,2008,40(5):22-26.
.Application of Projection Pursuit Dynamic Cluster Model in Water Resources Assessment[J].Advanced Engineering Sciences,2008,40(5):22-26.