Attribute control charts for monitoring the covariance matrix of bivariate processes.
Marcela Aparecida Guerreiro MachadoLinda Lee HoAntonio Fernando Branco CostaPublished in: Qual. Reliab. Eng. Int. (2018)
Keyphrases
- covariance matrix
- control charts
- statistical process control
- covariance matrices
- principal component analysis
- sample size
- correlation matrix
- mahalanobis distance
- eigenvalues and eigenvectors
- positive definite
- multivariate gaussian
- geometrical interpretation
- gaussian mixture
- real time
- estimation error
- pseudo inverse
- class conditional densities
- process control
- distance measure
- objective function
- eigendecomposition
- computer vision