含有時間冪次項的新GM模型建模參數(shù)特性研究
發(fā)布時間:2019-03-25 17:01
【摘要】:為提升灰色預測模型的精度,在GM(1,1)模型相關研究成果基礎上構(gòu)建了一種含有時間冪次項的灰色預測模型,討論了該模型參數(shù)在系統(tǒng)特征序列經(jīng)數(shù)乘變換前后的量化關系及數(shù)乘變換對該模型建模精度的影響程度.研究結(jié)果表明:新模型的建模精度與系統(tǒng)特征序列的數(shù)乘變換無關。研究結(jié)論認為,利用數(shù)乘變換可在不改變建模精度前提下簡化新模型的建模過程,提高其建模效率。
[Abstract]:In order to improve the precision of grey forecasting model, a grey forecasting model with time power term is constructed on the basis of relevant research results of GM (1,1) model. The quantitative relation of the model parameters before and after the system characteristic series is transformed by the number multiplication transformation is discussed and the influence of the number multiplication transformation on the modeling accuracy of the model is discussed. The results show that the modeling accuracy of the new model is independent of the number-multiplication transformation of the system characteristic sequence. It is concluded that the modeling process of the new model can be simplified and the modeling efficiency can be improved without changing the modeling accuracy by using the number multiplication transform.
【作者單位】: 淮陰工學院經(jīng)濟管理學院;南京航空航天大學灰色系統(tǒng)研究所;
【基金】:國家自然科學基金資助項目(71301060) 教育部人文社會科學研究青年基金項目(13YJC630109);教育部人文社會科學研究規(guī)劃基金項目(12YJA630122) 江蘇省“青藍工程”中青年學術(shù)帶頭人專項基金(2014)
【分類號】:F224
本文編號:2447155
[Abstract]:In order to improve the precision of grey forecasting model, a grey forecasting model with time power term is constructed on the basis of relevant research results of GM (1,1) model. The quantitative relation of the model parameters before and after the system characteristic series is transformed by the number multiplication transformation is discussed and the influence of the number multiplication transformation on the modeling accuracy of the model is discussed. The results show that the modeling accuracy of the new model is independent of the number-multiplication transformation of the system characteristic sequence. It is concluded that the modeling process of the new model can be simplified and the modeling efficiency can be improved without changing the modeling accuracy by using the number multiplication transform.
【作者單位】: 淮陰工學院經(jīng)濟管理學院;南京航空航天大學灰色系統(tǒng)研究所;
【基金】:國家自然科學基金資助項目(71301060) 教育部人文社會科學研究青年基金項目(13YJC630109);教育部人文社會科學研究規(guī)劃基金項目(12YJA630122) 江蘇省“青藍工程”中青年學術(shù)帶頭人專項基金(2014)
【分類號】:F224
【相似文獻】
相關期刊論文 前6條
1 李潔;林鴻;;河南省耕地承載力研究(英文)[J];Asian Agricultural Research;2010年01期
2 李潔;林鴻;;河南省耕地承載力研究[J];安徽農(nóng)業(yè)科學;2010年09期
3 何祥亮;周曉鐵;孫世群;陳偉蘭;;安徽省可持續(xù)性發(fā)展現(xiàn)狀及趨勢分析[J];安徽農(nóng)業(yè)科學;2008年09期
4 向云;陸倩;祁春節(jié);;基于灰色馬爾科夫模型的中國水果產(chǎn)量預測研究[J];農(nóng)業(yè)展望;2014年04期
5 羅紅旗;聶學俊;劉霞;;基于灰色預測模型測算農(nóng)業(yè)機械化貢獻率[J];農(nóng)機化研究;2011年10期
6 ;[J];;年期
相關碩士學位論文 前1條
1 董俊杰;基于云計算的互聯(lián)網(wǎng)企業(yè)商業(yè)模式研究[D];北京郵電大學;2014年
,本文編號:2447155
本文鏈接:http://sikaile.net/jingjilunwen/hongguanjingjilunwen/2447155.html
最近更新
教材專著