Properties of the contractive homothetic transformation and its application to grey modeling

被引：0
|
作者：
Wang Shuhua [1 ]
Wei Yong [1 ]
机构：
[1] China W Normal Univ, Coll Math & Informat, Sichuan 637002, Nanchong, Peoples R China
来源：
JOURNAL OF GREY SYSTEM | 2007年 / 19卷 / 04期
关键词：
grey model; homothetic transformation; smooth degree;
D O I：
暂无
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
This paper proposes the new transformation, namely the contractive homothetic transformation. proving that the smooth degree of the series will be improved by using this transformation. Not only the difference information will be decreased, but also the error of class ration will be reduced. At the same time, the smooth degree of the class approaches will be greatly advanced after being processed by this transformation, whether the series is monotone descending, or monotone ascending.
引用
收藏
页码：389 / 396
页数：8
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