Inspec keywords: statistical analysis; face recognition; gradient methods

Other keywords: adjacent pixels; Gaussian noise; FNCA-SSR model; gradient descent algorithm; optimisation problem; salt and pepper noise; face data sets; spatially smooth regulariser; local spatial smoothness; robust noisy face recognition; fast neighbourhood component analysis

Subjects: Image recognition; Other topics in statistics; Optimisation techniques; Optimisation techniques; Computer vision and image processing techniques; Other topics in statistics