Omar Ruiz

The variable sample size variable dimension T2 control chart

F. Aparisi, E. Epprecht, A. Carrión, 2014 .

The Variable-Dimension Approach in Multivariate SPC

F. Aparisi, E. Epprecht, Omar Ruiz, 2018 .

Optimum variable-dimension EWMA chart for multivariate statistical process control

Francisco Aparisi, Eugenio K. Epprecht, Omar Ruiz, 2018 .

Reducing sampling costs in multivariate SPC with a double-dimension T2 control chart

Francisco Aparisi, Eugenio K. Epprecht, Omar Ruiz, 2013 .

T2 Control Charts with Variable Dimension

Francisco Aparisi, Eugenio K. Epprecht, Omar Ruiz, 2012 .