摘要
指出了目前应用灰色方法存在的误区:灰关联序是唯一的;混淆了影子方程、灰微分型方程与GM(1,1)模型的差别;忽略了GM(1,1)模型的应用条件,阐明了产生误区的根本原因在于缺乏对“灰”本质的认识,同时给出了走出误区的途径:应充分利用数值映射与分辨系数对灰关联序进行多角度、多层次的分析,明晰灰关联序的特性;应深入理解GM(1.1)模型,灰微分方程,灰微分型方程,影子方程的内涵;在建立GM(1,1)模型时,应进行事前的光滑性检验。
The error areas in applying grey method are dealt with. Grey relational order is unique; the differences among shadow equation,grey differential model equation and GM(1,1) model are confused; the application conditions of GM(1,1) are neglected. The root cause for the error areas is that people lack the knowledge of 'grey' nature. So we point out a way to come out of the error areas-We should take good advantage of scalar mapping and distinguished coefficient to analyze grey relational order from various angles and levels in order to make the properties of grey relational order clearer; we should also have a better understanding of grey differential equation,grey differential model equation and shadow equation; and a prior smoothness test should be given for GM(1,1) modelling.
出处
《大庆石油学院学报》
EI
CAS
北大核心
1995年第3期108-110,共3页
Journal of Daqing Petroleum Institute
关键词
关联序
唯一性
灰微分型方程
灰色模型
understanding deviation, uniqueness of relational order, GM (1, 1) model, shadow equation, grey differential model equation
