该算法首先根据相关原子挑选多个原子作为候选集，然后从候选集中按照正则化原则挑选出部分原子，最后将其并入最终的支撑集，从而实现了原子的快速、有效选择-Firstly, a plurality of atoms selected on the basis of the candidate sets as atoms, and from the candidate set according to the principle of the selection of the regular part of the atoms of the last support of the final set, which is incorporated, in order to achieve a rapid and effective selection atoms