长春工业大学学报(自然科学版)
長春工業大學學報(自然科學版)
장춘공업대학학보(자연과학판)
JOURNAL OF CHANGCHUN UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE EDITION)
2015年
2期
202-205
,共4页
倒数累加生成%GRM (1 ,1)模型%背景值%初始条件
倒數纍加生成%GRM (1 ,1)模型%揹景值%初始條件
도수루가생성%GRM (1 ,1)모형%배경치%초시조건
accumulated operation in reciprocal number%GRM (1,1) model%background value%initial condition
将 X(1)的第n个分量作为初始条件与优化背景值相结合对灰色GRM (1,1)模型进行了改进。应用实例表明,改进的灰色GRM (1,1)模型在一定程度上消除了传统灰色模型在背景值获取和初始值选取时造成的误差,提高了预测精度。
將 X(1)的第n箇分量作為初始條件與優化揹景值相結閤對灰色GRM (1,1)模型進行瞭改進。應用實例錶明,改進的灰色GRM (1,1)模型在一定程度上消除瞭傳統灰色模型在揹景值穫取和初始值選取時造成的誤差,提高瞭預測精度。
장 X(1)적제n개분량작위초시조건여우화배경치상결합대회색GRM (1,1)모형진행료개진。응용실례표명,개진적회색GRM (1,1)모형재일정정도상소제료전통회색모형재배경치획취화초시치선취시조성적오차,제고료예측정도。
The nth componentf of X(1) , as the initial condition , is unified with the optimized background values improve the GRM(1 ,1) model .The example show that the improved grey model can be used to reduce the errors induced from both the background and initial value selection ,and so increase the estimation precision .