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多元线性回归与GM(1,1)模型耦合预测城市用水量
引用本文:李林,刘坤.多元线性回归与GM(1,1)模型耦合预测城市用水量[J].西北水资源与水工程,2008,19(1):61-63.
作者姓名:李林  刘坤
作者单位:塔里木大学农业工程学院,新疆阿拉尔843300
基金项目:塔里木大学校长基金资助项目(TDZKSS05018)
摘    要:合理预测城市用水量对于城市的发展有着极其重要的意义。本文首先应用多元回归的方法,采取向前选择变量法进行优选,得到相对最优的回归预测模型。然后利用灰色GM(1,1)模型,预测出规划年每个变量的值,代入多元回归模型,这样充分利用了两种模型的优点,预测精度高,结果更为合理可靠。

关 键 词:多元线性回归  GM(1  1)模型  城市用水量  预测

Forecasting urban water use by combining multiple linear regression with grey model (1,1)
LI Lin,LIU Kun.Forecasting urban water use by combining multiple linear regression with grey model (1,1)[J].Northwest Water Resources & Water Engineering,2008,19(1):61-63.
Authors:LI Lin  LIU Kun
Affiliation:(School of Agricultural Engineering, Tarim University, Alar, Xinjiang 843300, China)
Abstract:A reasonable prediction of urban water use is extremely important significance. First, the article applies multiple linear regression(MLR) and forward selection to obtain superior regression model. Second, uses GM(1,1) model to forecast every variable of planning year, then returns the results to multiple regression model. The results and the facts coincide very well in the mid-long forecast. Combining the MLS and GM (1,1) model can draw a good conclusion which is more reasonable and realiable.
Keywords:multiple linear regression  GM(1  1) model  urban water use  forecasting
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