“…Since then, various RKBSs [13,16,38,39,44,47,48,50] have been constructed for different applied and theoretical purposes. They are used in a wide variety of fields such as machine learning [44,47,48,50,51], sampling reconstruction [14,15,18,27,28], sparse approximation [38,39,44,47], and functional analysis [9,36,49]. The definitions of existing RKBSs and the associated reproducing kernels in the literature are dependent on the construction.…”