In this structure, the main species use a new mutation operator to keep population diversity in entire search space and acquire the fast increasing of better models, and the additional species are designed to get local optima in the specified regions.

• 在该结构中 ；主群采用新的变异算子来保持良好的群体分布 ；并促使较优模式的快速增长 ；附属子群设计在有限区域内获取局部最优 .