Principal components analysis based frameworks for efficient missing data imputation algorithms
Asian Conference on Intelligent Information and Database Systems, 2023•Springer
The problem of missing data is common in practice. Many imputation methods have been
developed to fill in the missing entries. However, not all of them can scale to high-
dimensional data, especially the multiple imputation techniques. Meanwhile, the data
nowadays tends toward high-dimensional. Therefore, we propose Principal Component
Analysis Imputation (PCAI), a simple but versatile framework based on Principal Component
Analysis (PCA) to speed up the imputation process and alleviate memory issues of many …
developed to fill in the missing entries. However, not all of them can scale to high-
dimensional data, especially the multiple imputation techniques. Meanwhile, the data
nowadays tends toward high-dimensional. Therefore, we propose Principal Component
Analysis Imputation (PCAI), a simple but versatile framework based on Principal Component
Analysis (PCA) to speed up the imputation process and alleviate memory issues of many …
Abstract
The problem of missing data is common in practice. Many imputation methods have been developed to fill in the missing entries. However, not all of them can scale to high-dimensional data, especially the multiple imputation techniques. Meanwhile, the data nowadays tends toward high-dimensional. Therefore, we propose Principal Component Analysis Imputation (PCAI), a simple but versatile framework based on Principal Component Analysis (PCA) to speed up the imputation process and alleviate memory issues of many available imputation techniques while maintaining good imputation quality. In addition, the frameworks can be used even when some or all of the missing features are categorical or when the number of missing features is large. We also analyze the effect of using different formulations of PCA on the technique. Next, we introduce PCA Imputation - Classification (PIC), an application of PCAI for classification problems with some adjustments. Experiments on various scenarios show that PCAI and PIC can work with various imputation algorithms, including state-of-the-art ones, and improve the imputation speed significantly while achieving competitive mean square error/classification accuracy compared to imputing directly on the missing data.
Springer
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