Variance components in errors-in-variables models: estimability, stability and bias analysis
Variance components in errors-in-variables models: estimability, stability and bias analysis
复制标题
变量误差模型中的方差分量:可估计性、稳定性和偏差分析
DOI:
10.1007/s00190-014-0717-9
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发表时间:
2014-04
影响因子:
4.4
通讯作者:
Liu Jingnan
中科院分区:
文献类型:
--
作者:
Xu Peiliang;Liu Jingnan
Although total least squares has been substantially investigated theoretically and widely applied in practical applications, almost nothing has been done to simultaneously address the estimation of parameters and the errors-in-variables (EIV) stochastic model. We prove that the variance components of the EIV stochastic model are not estimable, if the elements of the random coefficient matrix can be classified into two or more groups of data of the same accuracy. This result of inestimability is surprising as it indicates that we have no way of gaining any knowledge on such an EIV stochastic model. We demonstrate that the linear equations for the estimation of variance components could be ill-conditioned, if the variance components are theoretically estimable. Finally, if the variance components are estimable, we derive the biases of their estimates, which could be significantly amplified due to a large condition number.
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DOI:
10.2307/2348295
发表时间:
1991
期刊:
The Statistician
影响因子:
--
作者:
R. Iyer;J. Magnus;H. Neudecker
通讯作者:
R. Iyer;J. Magnus;H. Neudecker
影响因子:
1.9
作者:
W. Venables;C. Rao;J. Kleffe
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W. Venables;C. Rao;J. Kleffe
DOI:
10.1007/bf02522340
发表时间:
1986-12
期刊:
Bulletin Gæodésique
影响因子:
--
作者:
K. Koch
通讯作者:
K. Koch
DOI:
10.1201/9781315367002-6
发表时间:
2008
期刊:
--
影响因子:
--
作者:
Jonathan May
通讯作者:
Jonathan May
影响因子:
1.9
作者:
R. Pincus
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R. Pincus