摘要
GM(1,1)模型是常用的一种时序环境预测方法,但非等间隔灰色模型(NEGM(1,1))预测的先例却较少。本文简介了 NEGM(1,1)之建模思想,并以山东省1985～1993年工业废水排放量为例,探讨其应用效果。结果表明,该方法对估计已逝时序值与预测未来时序值,都是可行的。
The grey model GM (1,1) is one of environmental forecasting methods of time series, but non-equidistance grey model NEGM (1,1)was a less applyed to forecast.This text did a brief introduction to its modeling idea,and took the time series of discharge amount of in- dustrial waste water of Shandong province 1985-1993 years for example;besides,inquired into the applyed effect.The results showed cleary that it's feasibility of applying in establish- ing one of passed value and forecasting one of coming value of the time series have be point pully.
关键词
非等间隔
GM(1
1)模型
预测
工业废水
排放量
non-equidistance grey model NEGM(1,1)
forecast
discharge amount of industrial waste-water.
