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Combination of the gray model with time-series model based on robust estimation and its application in the deformation prediction
Pages: 51-54
Year: Issue:  8
Journal: Geotechnical Investigation & Surveying

Keyword:  时序分析方法 灰色时序模型 抗差估计;
Abstract: 文章讨论的方法是在时序分析建模的基础上,运用了GM(1,1)来提取趋势项,然后对残差进行时序建模,形成灰色与时序的组合模型,在建模中的参数估计方法,采用抗差估计来取代常规的最小二乘估计法,来达到抵抗粗差的目的,从实例计算来看,效果比较好。
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