Inspec keywords: matrix algebra; Gaussian processes; minimisation

Other keywords: Gaussian elimination; homotopy algorithm; matrix inversion; active matrices; optimisation problems; singularity problem; state-of-art ridge adding based method; l1-norm minimisation problems; ridge adding based method; matrix measurement

Subjects: Other topics in statistics; Optimisation techniques; Algebra; Other topics in statistics; Optimisation; Optimisation techniques; Algebra; Statistics; Algebra