Modern optimization theory mainly focuses on the optional sorting , arranging , grouping and s electing of separated events . the o ptional or hypo - optional s olution o f such problem could be obtained 现代优化算法主要研究用数学方法迅速寻找离散事件的最优编排、分组、次序或筛选,从而在庞大的解集中迅速找到问题的最优解或次优解。