A hybrid approach for regression analysis with block missing data
A hybrid approach for regression analysis with block missing data
复制标题
块缺失数据回归分析的混合方法
DOI:
10.1016/j.csda.2014.02.014
复制
发表时间:
2014-07
影响因子:
1.8
通讯作者:
Li Bo
中科院分区:
文献类型:
--
作者:
Li Zhengbang;Li Qizhai;Han Chien-Pai;Li Bo
Missing data often arise in practice. The commonly employed approach to handle the missing data is imputation, which is effective when the missing mechanism is known and each subject in the data set misses at random. However, the situation where the imputation is not appropriate often emerged. Because in that situation, some data are not missing at random, so a hybrid estimate, where the Bayesian and frequentist approaches are used for inferring the parameters with and without prior information respectively, is proposed. The asymptotic properties of the hybrid estimator are also provided. Numerical results including simulation studies and data analysis about grade point average (GPA) are conducted to show the performances of the proposed method.
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