秩和比法、改良TOPSIS法及模糊联合法综合评价视力不良效果的比较

Comparison of comprehensive evaluation poor eyesight effects of RSR, improved TOPSIS and fuzzy combination method

目的应用秩和比(rank-sum ratio,RSR)法、改良TOPSIS(technique for order preference by similarity to an ideal solution)法及两者模糊联合法对部分少数民族学生视力不良进行综合评价,并比较三种方法的综合评价效果。方法基于2014年中国学生体质与健康调研报告数据,采用RSR法、改良TOPSIS法以及两者模糊联合法对部分少数民族学生视力不良进行综合评价。结果三种分析方法下,壮族、羌族和撒拉族视力不良水平均为后5位,其结果较为稳定。RSR法下土族为第23名,分档结果为第一档(差),改良TOPSIS法及三种权重下模糊联合的结果分别为第16,23,21和19名。在改良TOPSIS下朝鲜族为最后一名,RSR及三种权重下分别为第17、19、22和24名。结论RSR法对数据的利用不够充分,TOPSIS法易受极端值的影响,模糊联合法将两种方法优势互补。根据择多原则,选择总体趋势相同的结果。而且,模糊联合法灵敏度更高,因而更适合去评价视力不良的分布情况。

Objective A comprehensive evaluation of the poor eyesight of some minority students was carried out based on rank-sum ratio(RSR),improved technique for order preference by similarity to an ideal solution(TOPSIS)and fuzzy combination method,and the comprehensive evaluation effects of three methods were compared.Methods RSR,improved TOPSIS and fuzzy combination method were used to comprehensively evaluate the poor eyesight of some minority students based on the data of physique and health survey reports of Chinese students in 2014.Results The last five of poor vision levels were Bourau,Qiang and Salar under three analytical methods,and the results were relatively stable.Under RSR method,Tu nationality was the 23 th,the result of grading was the first(poor),and the results were respectively the 16 th,23 rd,21 st and 19 th under improved TOPSIS and fuzzy combination method of three kinds of weight.Under improved TOPSIS method,Korean was the last,that RSR method and three kinds of weight were the 17 th,19 th,22 nd and 24 th,respectively.Conclusions RSR method does not fully utilize the data,and improved TOPSIS method is susceptible to extreme values,fuzzy combination method can complement the advantages of the two methods.According to the principle of majority,the results were selected with the same overall trend.Furthermore,fuzzy combination method possesses higher sensitivity and thereby is more suitable to evaluate the distribution of poor eyesight.