非线性主成分在课堂教学评估体系中的应用  

Methods of Determining the Weights of Teaching Assesses

作　　者：牛惠芳[1] 缪柏其[2] 戴小莉[2] 

机构地区：[1]河南洛阳师范学院数学系,河南洛阳471022 [2]中国科学技术大学,安徽合肥230026

出　　处：《数学的实践与认识》2006年第9期39-43,共5页Mathematics in Practice and Theory

基　　金：河南省自然科学基金(0311010600)

摘　　要：介绍了Box-C ox、L og it等非线性变换及非线性主成分的概念,并利用非线性主成分来构造教学评估体系中的权系数,和线性主成分相比,我们得到了较好的结果.Some nonlinear transforms such as Box--cox. Logit were given in this paper. Using their nolinear prlcipal components to determine the weights of item. Compared to the linear pricipal components, a better result is presented,

关 键 词：Box—Cox变换 Logit变换 非线性主成分 教学评估 

分 类 号：O177.91[理学—数学]