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,
出处
《数学的实践与认识》
CSCD
北大核心
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)
