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基于投影寻踪模型的水资源利用效率评价

发表时间:2009-07-15  浏览量:1636  下载量:736
全部作者: 张琨,郑宝,张炜,崔丽
作者单位: 北京师范大学数学科学学院
摘 要: 根据13个省市的水资源相关指标,包括农业万元国内生产总值(gross domestic product,GDP)用水量、工业万元GDP用水量、人均化学需氧量(chemical oxygen demand,COD)排放量、人均生活用水量等,建立评估指标体系,并利用投影寻踪模型对各省市的水资源利用效率进行综合评价。该方法可以依据样本自身的数据特性寻求最佳投影方向,利用最佳投影方向可以判断各评价指标对综合评价目标的贡献大小和方向,进而得到最终的评价结论。
关 键 词: 应用数学;水资源利用效率;综合评价;投影寻踪模型
Title: Comprehensive evaluation of water resource use�efficiency based on projection pursuit model
Author: ZHANG Kun, ZHENG Bao, ZHANG Wei, CUI Li
Organization: School of Mathematical Sciences, Beijing Normal University
Abstract: This paper establishes an evaluation index system based on some indexes of the water resources, including water consumption per unit gross domestic product (GDP) of agriculture, water consumption per unit GDP of industry, emissions of chemical oxygen demand (COD) per capita, and water consumption of life per capita. Projection pursuit model is used to study the comprehensive evaluation of water resource use efficiency. Projection pursuit can be used to project high dimensional data to low dimensional space and find the optimum projection vector of data in one-dimensional space, which is helpful to comprehensively evaluate the value and direction of every index in comprehensive evaluation.
Key words: applied mathematics; water resource use efficiency; comprehensive evaluation; projection pursuit model
发表期数: 2009年7月第13期
引用格式: 张琨,郑宝,张炜,等. 基于投影寻踪模型的水资源利用效率评价[J]. 中国科技论文在线精品论文,2009,2(13):1396-1401.
 
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