不同主体综合评价不同客体改进算法

摘要

针对现有不同主体评价不同客体的权重设计方法的不足,提出一种改进计算权重的算法.建立不同主体、不同客体的教学评价模型的数学模型,计算不同主体评价方案,计算每个主体的评价方案和其他方案之间的等级相关系数,把每个方案得到的等级相关系数加总,选出等级相关系数做大的一个方案作为比较方案,通过计算欧氏距离找到和比较方案兼容程度做大的组合方案作为最优组合方案.通过一个实际应用验证本算法有效性.%Aiming at the defect about the algorithm for calculating weight,of diverse objects evaluated by diverse subjects,an improved algorithm for calculating weight,is proposed.Firstly,the mathematical model of teaching evaluation model about diverse objects evaluated by diverse subjects is set up,and the evalution scheme of different subject is calculated.The rank correlation coefficient between evaluation scheme of each subject and the other schemes is calculated,and all of the rank correlation coefficients are summed up and the evalution scheme of the maximum rank correlation coefficient is choosed as the scheme for reference.The optimal combination scheme which is the minimal distance to the reference scheme is calculated by Euclidean distance.Finally,an example is given to illustrate the effectiveness.