This paper discusses the estimation of regression parameters after summarizing the data by a covariance matrix of the concatenated vector of explanatory variables and response variable. A robust estimate of the covariance matrix leads to a robust regression estimator. An M-estimator at the covariance estimation step is studied in the paper, and the resulting regression estimator is compared to a few previously proposed robust regression estimators.
Daniel Kuhn, Yves Rychener, Viet Anh Nguyen
Mathieu Salzmann, Alexandre Massoud Alahi, Megh Hiren Shukla