A comparison study of nonparametric imputation methods
A comparison study of nonparametric imputation methods
复制标题
非参数插补方法的比较研究
DOI:
10.1007/s11222-010-9223-y
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发表时间:
2012
影响因子:
2.2
通讯作者:
Cheng, Philip E.
中科院分区:
文献类型:
--
作者:
Ning, Jianhui;Cheng, Philip E.
Consider estimation of a population mean of a response variable when the observations are missing at random with respect to the covariate. Two common approaches to imputing the missing values are the nonparametric regression weighting method and the Horvitz-Thompson (HT) inverse weighting approach. The regression approach includes the kernel regression imputation and the nearest neighbor imputation. The HT approach, employing inverse kernel-estimated weights, includes the basic estimator, the ratio estimator and the estimator using inverse kernel-weighted residuals. Asymptotic normality of the nearest neighbor imputation estimators is derived and compared to kernel regression imputation estimator under standard regularity conditions of the regression function and the missing pattern function. Aácomprehensive simulation study shows that the basic HT estimator is most sensitive to discontinuity in the missing data patterns, and the nearest neighbors estimators can be insensitive to missing data patterns unbalanced with respect to the distribution of the covariate. Empirical studies show that the nearest neighbor imputation method is most effective among these imputation methods for estimating a finite population mean and for classifying the species of the iris flower data.
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影响因子:
4.5
作者:
Qihua Wang;J. Rao
通讯作者:
Qihua Wang;J. Rao
影响因子:
1.1
作者:
Jiahua Chen;J. Shao
通讯作者:
Jiahua Chen;J. Shao
DOI:
10.1080/01621459.1999.10473862
发表时间:
1999-12
影响因子:
3.7
作者:
D. Scharfstein;A. Rotnitzky;J. Robins
通讯作者:
D. Scharfstein;A. Rotnitzky;J. Robins
DOI:
--
发表时间:
2002
期刊:
--
影响因子:
--
作者:
E. Rancourt
通讯作者:
E. Rancourt
DOI:
10.1198/016214501750332839
发表时间:
2001-03-01
影响因子:
3.7
作者:
Chen, JH;Shao, J
通讯作者:
Shao, J