Methods In order to avoid prematurity, we kept the diversity of population, that was, some schemas of previous generation compete with schemas of present generation.

• 方法保持种群的多样性,将上几代个体中的一部分与本代共同参与竞争,提出多代竞争遗传算法,通过理论分析和对数值函数优化证明该算法的有效性。