摘要
组合预测是对用多种预测方法进行预测的结果加权。建立了基于最小二乘法原理的组合预测模型,提出了求解此组合预测模型的一种新的算法,即Frank-Wolfe算法,并将其应用于四川某输气管道内腐蚀速度预测的研究,应用结果表明,Frank-Wolfe方法较适用于求解组合预测问题的权重。
The combination forecasting is to weight results of the forecasting used by different methods.In this paper,a new algorithm of forecasts,the Frank-Wolfe algorithm,corresponding to a combinative forecast model based on the principle of OLS is presented.Its application to the forecasting of internal corrosive rate of gas pipeline shows that it has the highest precision in forecasting.Therefore,it is a simple and effective method of combinative forecasts in solving combinative forecast weight.
出处
《油气储运》
CAS
北大核心
2007年第1期13-17,共5页
Oil & Gas Storage and Transportation
关键词
天然气管道
内腐蚀速率
组合预测
Frank-Wolfe算法
应用
gas pipeline
internal corrosion rate
combination forecasting
Frank-Wolfe algorithm
weighted coefficients
application