On weighted multivariate sign functions
On weighted multivariate sign functions
复制标题
关于加权多元符号函数
DOI:
10.1016/j.jmva.2022.105013
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发表时间:
2022
影响因子:
1.6
通讯作者:
Chatterjee, Snigdhansu
中科院分区:
文献类型:
--
作者:
Majumdar, Subhabrata;Chatterjee, Snigdhansu
Multivariate sign functions are often used for robust estimation and inference. We propose using data dependent weights in association with such functions. The proposed weighted sign functions retain desirable robustness properties, while significantly improving efficiency in estimation and inference compared to unweighted multivariate sign-based methods. Using weighted signs, we demonstrate methods of robust location estimation and robust principal component analysis. We extend the scope of using robust multivariate methods to include robust sufficient dimension reduction and functional outlier detection. Several numerical studies and real data applications demonstrate the efficacy of the proposed methodology.
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DOI:
10.1016/b978-0-12-386908-1.00037-9
发表时间:
2018-11
期刊:
Wiley Series in Probability and Statistics
影响因子:
--
作者:
Bruce E. Blaine
通讯作者:
Bruce E. Blaine
DOI:
10.1016/j.jmva.2018.10.002
发表时间:
2018
期刊:
J. Multivar. Anal.
影响因子:
--
作者:
G. Boente;Daniela Rodriguez;M. Sued
通讯作者:
M. Sued
影响因子:
4.5
作者:
Regina Y. Liu;J. Parelius;Kesar Singh
通讯作者:
Regina Y. Liu;J. Parelius;Kesar Singh
影响因子:
4.5
作者:
Zu, Yijun;He, Xuming
通讯作者:
He, Xuming
影响因子:
4.5
作者:
NIEMIRO, W
通讯作者:
NIEMIRO, W