Sparse radial basis function approximation with spatially variable shape parameters. - Valentin Stolbunov; Prasanth B. Nair (Appl. Math. Comput., 2018)

Some greedy algorithms for sparse polynomial chaos expansions. - Ricardo Baptista; Valentin Stolbunov; Prasanth B. Nair (J. Comput. Phys., 2019)