期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
从一道竞赛题谈起
1
作者 薛廷兵 徐翔 《中学教研(数学版)》 2003年第5期37-39,共3页
2002年全国高中数学联合竞赛(四川·重庆初赛)试题第15题是一个很好的题目,它入口宽,灵活多变,对于培养发散思维及类比思想等重要的思想方法有很好的典范作用.下面谈谈本人对它的认识. 题目图1是一个小城镇的道路图,其中公园的四周... 2002年全国高中数学联合竞赛(四川·重庆初赛)试题第15题是一个很好的题目,它入口宽,灵活多变,对于培养发散思维及类比思想等重要的思想方法有很好的典范作用.下面谈谈本人对它的认识. 题目图1是一个小城镇的道路图,其中公园的四周也是道路,但没有道路穿过公园.试问:从点A到点月的最短行程中,共有多少种走法? 展开更多
关键词 竞赛题 高中 2002年 数学 类比思想 解法 行程最短问题 组合
下载PDF
An Improved Ant Algorithm for VRP with the Shortest Delivery Time in Distribution Center
2
作者 Zixia Chen 《Journal of Systems Science and Information》 2007年第3期243-252,共10页
It is considered here for an improved ant algorithm to minimize the delivery time of VRP (Vehicle Routing Problem) in distribution center. Firstly VRP which objective is to minimize the delivery time is given, then ... It is considered here for an improved ant algorithm to minimize the delivery time of VRP (Vehicle Routing Problem) in distribution center. Firstly VRP which objective is to minimize the delivery time is given, then the optimal vehicle distributionroute-division approach of distribution center for given customer array is defined, and the ant colony algorithm for VRP with objective to minimize the delivery time is presented. The research of this paper is based on the information and application case of tobacco network in Hangzhou city. By investigating, we created two different system models. One is division of distribution route of distribution center, and the other is optimization of single vehicle route. The computational example tests and verifys the solution. 展开更多
关键词 vehicle routing problem (VRP) ant algorithm shortest dlivery time goods distribution
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部