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多维时序定阶方法对偏最小二乘回归模型预报精度的改进
The Method of Pricing Order of the Multivariate Autoregression Model for Amelioration of Forecast Precision of the Partial Least-Squares Regression Model
【摘要】 运用时间序列多维自回归模型的定阶方法 ,解决了偏最小二乘回归模型中自变量的选择问题 .通过对我国财政收入的预报分析表明 ,这两种统计模型的结合使用 ,较大程度地提高了预报精度
【Abstract】 This paper makes use of the method o f pricing order of the Multivariate Autoregression Model to resolve the choosing problem of variable about the Partial Least-Squares Regression Model. The indi cation of forecast analysis for China′s fiscal expenditures, the combination of the two kinds of models can raise the forecast precision.
【关键词】 多维自回归模型;
定阶;
偏最小二乘回归模型;
预报精度;
【Key words】 multivariate autoregression model; pricing order; partial least-squares regression model; forecast precision;
【Key words】 multivariate autoregression model; pricing order; partial least-squares regression model; forecast precision;
- 【文献出处】 数学的实践与认识 ,Mathematics In Practice and Theory , 编辑部邮箱 ,2003年08期
- 【分类号】O212
- 【被引频次】8
- 【下载频次】174