A survey of methods for monitoring covariance matrix
Mohsen Ebadi, Shojaeddin Chenouri, Dennis K. J. Lin, Stefan H. Steiner · 2024
This paper presents a comprehensive overview of the literature on control charts for monitoring the covariance matrix in a multivariate statistical process monitoring (MSPM) framework. It classifies the research that has previously appeared in the literature. We highlight the challenging areas for research and provide some directions for future research.