基于改进遗传算法的单级多项目无能力约束生产批量问题研究

通过对单级多项目无能力约束生产批量问题(SMULP)模型进行分析，得出了一些重要的结论．分析了基本遗传算法的缺陷及其产生的原因．对该问题在遗传算法的编码、适应度函数、选择复制操作、交叉方法、交叉概率、变异概率和终止条件等各个环节进行了改进．采用VB6．0对SMULP改进遗传算法编程实现，能很好地与ERP软件集成．并对SMULP改进遗传算法进行了性能分析．

Study on improved genetic algorithms approach applied to single-level and multiple-item uncapacitated lot-sizing problem

By visiting some of the universities in shanghai and surveying their students' after-school PE activity management, I get to know that the physical function department lacks the necessary management, guidance and organization to the students' attending of afer-school PE activity. Therefore I' ve designed a set of management mode for the university students' after-school PE activities in order to provide the theoretical reference for the scientific management of the university after-school PE activities.