Multilevel maximum likelihood estimation with application to covariance matrices
Multilevel maximum likelihood estimation with application to covariance matrices
复制标题
应用于协方差矩阵的多级最大似然估计
DOI:
10.1080/03610926.2017.1422755
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Eben, Kryštof
中科院分区:
文献类型:
--
作者:
Turčičová, Marie;Mandel, Jan;Eben, Kryštof
The asymptotic variance of the maximum likelihood estimate is proved to decrease when the maximization is restricted to a subspace that contains the true parameter value. Maximum likelihood estimation allows a systematic fitting of covariance models to the sample, which is important in data assimilation. The hierarchical maximum likelihood approach is applied to the spectral diagonal covariance model with different parameterizations of eigenvalue decay, and to the sparse inverse covariance model with specified parameter values on different sets of nonzero entries. It is shown computationally that using smaller sets of parameters can decrease the sampling noise in high dimension substantially.
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影响因子:
2.2
作者:
Kasanický, I.;Mandel, J.;Vejmelka, M.
通讯作者:
Vejmelka, M.
DOI:
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发表时间:
2010
期刊:
影响因子:
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作者:
Y. Michel;T. Auligne
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T. Auligne
DOI:
--
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2006
期刊:
影响因子:
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作者:
G. Gaspari;S. Cohn;Jing Guo;S. Pawson
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影响因子:
3.7
作者:
Jun Yan
通讯作者:
Jun Yan
DOI:
--
发表时间:
2010
期刊:
影响因子:
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作者:
Isabelle Mirouze;A. T. Weaver
通讯作者:
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