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一种启发式遗传算法及其在最短路径求取中的应用 被引量:10
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作者 杨云 孙向军 +1 位作者 曹立鑫 刘凤玉 《计算机工程与应用》 CSCD 北大核心 2003年第1期12-14,38,共4页
对经典的遗传算子(选择算子、交叉算子和变异算子)进行重新设计,提出了一种启发式遗传算法。它能够根据种群的进化情况,动态地调整遗传算子,维持种群的多样性,克服过早收敛并加快了搜索速度,得到高品质解。将算法用于最短路径求取中,仿... 对经典的遗传算子(选择算子、交叉算子和变异算子)进行重新设计,提出了一种启发式遗传算法。它能够根据种群的进化情况,动态地调整遗传算子,维持种群的多样性,克服过早收敛并加快了搜索速度,得到高品质解。将算法用于最短路径求取中,仿真结果证实是合理而有效的。 展开更多
关键词 启发式遗传算法 最短路径求取 遗传算子 最短路径算法 二元交叉算子
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Evolutionary Computation for Realizing Distillation Separation Sequence Optimization Synthesis 被引量:2
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作者 Dong Hongguang Qin Limin Wang Kefeng Yao Pingjing 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2005年第4期52-59,共8页
Evolutionary algorithm is applied for distillation separation sequence optimization synthesis problems with combination explosion. The binary tree data structure is used to describe the distillation separation sequenc... Evolutionary algorithm is applied for distillation separation sequence optimization synthesis problems with combination explosion. The binary tree data structure is used to describe the distillation separation sequence, and it is directly applied as the coding method. Genetic operators, which ensure to prohibit illegal filial generations completely, are designed by using the method of graph theory. The crossover operator based on a single parent or two parents is designed successfully. The example shows that the average ratio of search space from evolutionary algorithm with two-parent genetic operation is lower, whereas the rate of successful minimizations from evolutionary algorithm with single parent genetic operation is higher. 展开更多
关键词 evolutionary algorithm coding method based on the binary tree crossover operator mutation operator distillation separation sequence optimization synthesis
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