基于变异系数的修正G2赋权方法及实证  

Modified G2 Weighting Method and Demonstration Based on Coefficient of Variation

作　　者：祝志川 张之[2] Zhu Zhichuan;Zhang Zhi(School of Economics,Liaoning University,Shenyang 110036,China;School of Statistics,Jilin University of Finance and Economics,Changchun 130117,China)

机构地区：[1]辽宁大学经济学院,沈阳110036 [2]吉林财经大学统计学院,长春130117

出　　处：《统计与决策》2019年第2期70-74,共5页Statistics & Decision

基　　金：中国博士后科学基金资助项目(2016M591468);吉林省社会科学基金资助项目(2016BS13;2018B54);吉林省科技发展计划资助项目(20170520050JH)

摘　　要：为了避免组合赋权法中组合系数无法科学分配的难题,文章首先利用各评价指标与最不重要评价指标的变异系数之比代替人为给出两评价指标重要性程度之比的理性点赋值,构造了基于变异系数的修正G2点赋值权重计算方法;其次,利用各评价指标与最不重要指标的变异系数置信区间的上下限之比代替人为确定其重要性程度之比的理性赋值区间,构造了基于变异系数的修正G2区间赋值权重计算方法;最后,以吉林省"五化"协调发展为例进行了实证分析。In order to avoid the problem that combination coefficient cannot be scientifically assigned in the combinatorial weighting method,this paper firstly uses the ratio of the coefficient of variation of each evaluation index to the least important evaluation index to replace the rational point assignment of the ratio of the importance degree of two artificial evaluation indexes,presenting a modified-G2 point weighting method based on coefficient of variation.And then by using the ratio of the upper and lower limits of the confidence interval of the coefficient of variation between each evaluation index and the least important index to replace the rational value interval of determining the ratio of its importance degree artificially,a modified G2 interval weight calculation method is established based on the coefficient of variation.Finally,the paper takes the "five-aspect" coordinated development of Jilin Province as an example to make an empirical analysis.

关 键 词：G2法 变异系数法 赋权方法 综合评价 

分 类 号：N945.16[自然科学总论—系统科学]