Imputed Factor Regression for High-dimensional Block-wise Missing Data
Imputed Factor Regression for High-dimensional Block-wise Missing Data
复制标题
高维分块缺失数据的估算因子回归
DOI:
10.5705/ss.202018.0008
复制
发表时间:
2020
影响因子:
1.4
通讯作者:
Annie Qu
中科院分区:
文献类型:
--
作者:
Yanqing Zhang;Niansheng Tang;Annie Qu
Block-wise missing data are becoming increasingly common in highdimensional biomedical, social, psychological, and environmental studies. As a result, we need efficient dimension-reduction methods for extracting important information for predictions under such data. Existing dimension-reduction methods and feature combinations are ineffective for handling block-wise missing data. We propose a factor-model imputation approach that targets block-wise missing data, and use an imputed factor regression for the dimension reduction and prediction. Specifically, we first perform screening to identify the important features. Then, we impute these features based on the factor model, and build a factor regression model to predict the response variable based on the imputed features. The proposed method utilizes the essential information from all observed data as a result of the factor structure of the model. Furthermore, the method remains efficient even when the proportion of block-wise missing is high. We show that the imputed factor regression model and its predictions are consistent under regularity conditions. We compare the proposed method with existing approaches using simulation studies, after which we apply it to data from the Alzheimer’s DisStatistica Sinica: Preprint doi:10.5705/ss.202018.0008
登录
查看更多内容
DOI:
10.2139/ssrn.2607666
发表时间:
2014-12
期刊:
Econometric Modeling: Forecasting eJournal
影响因子:
--
作者:
Jianqing Fan;Lingzhou Xue;Jiawei Yao
通讯作者:
Jianqing Fan;Lingzhou Xue;Jiawei Yao
DOI:
--
发表时间:
2008-12
期刊:
--
影响因子:
--
作者:
Piyush Rai;Hal Daumé
通讯作者:
Piyush Rai;Hal Daumé
影响因子:
3.7
作者:
Zhu H;Shen D;Peng X;Liu LY
通讯作者:
Liu LY
影响因子:
4.5
作者:
Fan J;Liao Y;Wang W
通讯作者:
Wang W
影响因子:
--
作者:
M. West;J. Nevins;J. Marks;R. Spang;H. Zuzan
通讯作者:
M. West;J. Nevins;J. Marks;R. Spang;H. Zuzan