Robust normal reference bandwidth for kernel density estimation

被引:10
作者
Zhang, Jin [1 ]
Wang, Xueren [1 ]
机构
[1] Yunnan Univ, Sch Math & Stat, Kunming 650091, Yunnan, Peoples R China
基金
加拿大自然科学与工程研究理事会; 中国国家自然科学基金;
关键词
biased cross-validation; least squares cross-validation; mean integrated squared error; outliers; CROSS-VALIDATION;
D O I
10.1111/j.1467-9574.2008.00392.x
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
Bandwidth selection is the main problem of kernel density estimation, the most popular method of density estimation. The classical normal reference bandwidth usually oversmoothes the density estimate. The existing hi-tech bandwidths have computational problems (even may not exist) and are not robust against outliers in the sample. A highly robust normal reference bandwidth is proposed, which adapts to different types of densities.
引用
收藏
页码:13 / 23
页数:11
相关论文
共 17 条
[1]  
BOWMAN AW, 1984, BIOMETRIKA, V71, P353
[2]   DENSITY-ESTIMATION AND SUICIDE RISKS IN PSYCHIATRIC-TREATMENT [J].
COPAS, JB ;
FRYER, MJ .
JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES A-STATISTICS IN SOCIETY, 1980, 143 :167-176
[3]  
HALL P, 1991, J ROY STAT SOC B, V53, P245
[4]  
Hardle W., 1991, SMOOTHING TECHNIQUES
[5]   EXACT MEAN INTEGRATED SQUARED ERROR [J].
MARRON, JS ;
WAND, MP .
ANNALS OF STATISTICS, 1992, 20 (02) :712-736
[6]   ESTIMATION OF A PROBABILITY DENSITY-FUNCTION AND MODE [J].
PARZEN, E .
ANNALS OF MATHEMATICAL STATISTICS, 1962, 33 (03) :1065-&
[7]   REMARKS ON SOME NONPARAMETRIC ESTIMATES OF A DENSITY-FUNCTION [J].
ROSENBLATT, M .
ANNALS OF MATHEMATICAL STATISTICS, 1956, 27 (03) :832-837
[8]  
RUDEMO M, 1982, SCAND J STAT, V9, P65
[9]   BIASED AND UNBIASED CROSS-VALIDATION IN DENSITY-ESTIMATION [J].
SCOTT, DW ;
TERRELL, GR .
JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION, 1987, 82 (400) :1131-1146
[10]  
Scott W.D., 1992, Multivariate Density Estimation