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改进灰导数的GM(1,1)幂模型
引用本文:王丰效.改进灰导数的GM(1,1)幂模型[J].纯粹数学与应用数学,2011,27(2):148-150,157.
作者姓名:王丰效
作者单位:喀什师范学院数学系;
摘    要:为了提高灰色GM(1,1)幂模型的拟合精度,讨论了灰色GM(1,1)幂模型灰导数的白化问题.以白化微分方程为基础,利用梯形公式白化灰导数,得到了改进的GM(1,1)幂模型.实例分析结果表明改进的GM(1,1)幂模型具有更高的预测和拟合精度.

关 键 词:灰色GM(1  1)幂模型  灰导数  梯形公式  拟合精度

GM(1,1) power model of improvement grey derivative
WANG Feng-xiao.GM(1,1) power model of improvement grey derivative[J].Pure and Applied Mathematics,2011,27(2):148-150,157.
Authors:WANG Feng-xiao
Institution:WANG Feng-xiao(Department of Mathematics,Kashi Teachers College,Kashi 844000,China)
Abstract:In order to improve the precision of GM(1,1) power model,the problem of whitening derivative item in GM(1,1) power model is discussed.Based on the white di?erent equation and trapezoid formula,the improve GM(1,1) power model is presented.The application example indicates that the the precision of improve GM(1,1) power model is higher than the GM(1,1) power model.So this method is feasible,e?ective and has important theory significance.
Keywords:GM(1  1) power model  grey derivative  trapezoid formula  fitting precision  
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