Robust estimation for correlated observations: two local sensitivity-based downweighting strategies
Robust estimation for correlated observations: two local sensitivity-based downweighting strategies
复制标题
相关观测值的稳健估计:两种基于局部敏感性的降权策略
DOI:
10.1007/s00190-009-0361-y
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发表时间:
2010-04
影响因子:
4.4
通讯作者:
中科院分区:
文献类型:
--
作者:
An iterative robust estimation procedure for correlated observations is proposed, in which the a-prior correlation coefficient matrix is not updated to alleviate the computational burden. Selection of the downweighting strategy plays a key role in the proposed method. Two local sensitivity-based strategies, one is based on the uniformly most powerful test statistics, the other is based on the standardized least squares residuals, are developed and analyzed. Monte Carlo simulations in the GPS network adjustment scenario demonstrate that, the two strategies can provide a certain resistance against the deteriorating effect of outlying observations on the parameter estimates; the former downweighting strategy is superior to the latter one, both in terms of robustness and computational efficiency.
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DOI:
10.1080/10020070512331342060
发表时间:
2005-03
期刊:
Progress in Natural Science
影响因子:
--
作者:
Guo Jianfeng;Ou Jikun;Ren Chao
通讯作者:
Guo Jianfeng;Ou Jikun;Ren Chao
DOI:
10.1061/(asce)0733-9453(1997)123:3(126
发表时间:
1997-08
期刊:
Journal of Surveying Engineering-asce
影响因子:
--
作者:
B. Schaffrin
通讯作者:
B. Schaffrin
DOI:
10.1002/9780470316764
发表时间:
--
期刊:
--
影响因子:
--
作者:
J. A. Díaz-García;G. González-Farías;V. Alvarado-Castro
通讯作者:
J. A. Díaz-García;G. González-Farías;V. Alvarado-Castro
影响因子:
2.5
作者:
G. Piepel
通讯作者:
G. Piepel
影响因子:
4.4
作者:
Peiliang Xu
通讯作者:
Peiliang Xu