Wind and Window Flower is a special metaphorical love poem by Robert Frost. This tale of love actually presents a love journey of temptation, excitement, and disappointment. This paper tries to analysis the poem from ...Wind and Window Flower is a special metaphorical love poem by Robert Frost. This tale of love actually presents a love journey of temptation, excitement, and disappointment. This paper tries to analysis the poem from the perspective of the sound of the poetry, the metro and rhyme, the conceptual and rhetorical.展开更多
针对当前算法在求解带时间窗车辆路径问题(Vehicle Routing Problem with Time Windows,VRPTW)时存在精度、效率方面的不足,提出一种改进的离散花朵授粉算法.算法在基本花朵授粉算法的基础上进行离散化,使其适合求解带时间窗车辆路径问...针对当前算法在求解带时间窗车辆路径问题(Vehicle Routing Problem with Time Windows,VRPTW)时存在精度、效率方面的不足,提出一种改进的离散花朵授粉算法.算法在基本花朵授粉算法的基础上进行离散化,使其适合求解带时间窗车辆路径问题,重新定义花朵授粉算子操作.为了提高求解精度和效率,设计了随机插入、路径内的2-opt、交换和逆序操作,为了增加种群间信息的交互,结合改进的遗传算子.通过11个测试算例表明,改进的离散花朵授粉算法在求解VRPTW是行之有效的,与文献中其他算法比较,算法在精度、效率和鲁棒性方面具有优势.展开更多
文摘Wind and Window Flower is a special metaphorical love poem by Robert Frost. This tale of love actually presents a love journey of temptation, excitement, and disappointment. This paper tries to analysis the poem from the perspective of the sound of the poetry, the metro and rhyme, the conceptual and rhetorical.
文摘针对当前算法在求解带时间窗车辆路径问题(Vehicle Routing Problem with Time Windows,VRPTW)时存在精度、效率方面的不足,提出一种改进的离散花朵授粉算法.算法在基本花朵授粉算法的基础上进行离散化,使其适合求解带时间窗车辆路径问题,重新定义花朵授粉算子操作.为了提高求解精度和效率,设计了随机插入、路径内的2-opt、交换和逆序操作,为了增加种群间信息的交互,结合改进的遗传算子.通过11个测试算例表明,改进的离散花朵授粉算法在求解VRPTW是行之有效的,与文献中其他算法比较,算法在精度、效率和鲁棒性方面具有优势.