Missing value imputation using least squares techniques in contaminated matrices

This paper describes strategies to reduce the possible effect of outliers on the quality of imputations produced by a method that uses a mixture of two least squares techniques: regression and lower rank approximation of a matrix. To avoid the influence of discrepant data and maintain the computatio...

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Bibliographic Details
Main Authors: Marisol Garcia-Peña, Sergio Arciniegas-Alarcón, Wojtek J. Krzanowski
Format: Article
Language:English
Published: Elsevier 2022-01-01
Series:MethodsX
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S221501612200067X