旅行推销员问题的非常接近最优算法

L. Copertari
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引用次数: 0

摘要

旅行推销员问题(TSP)是一个 P 对 NP 的关键问题,可以推广到其他问题的某些实例。使用最先进的商业分支-约束混合整数线性规划求解器(LINGO)求解 TSP 问题所需的时间与城市或目的地数量的二次乘以基数为 2 的指数成正比。而我的算法解决这个问题所需的时间是城市或目的地数量的二次方。我的算法基本上是通过将成本或距离矩阵中的单元格从低值到高值排序,同时检查是否存在循环来解决问题。在 100 个城市或目的地的情况下,我的算法比 LINGO 平均高出 43.67%。在当今和未来的互联世界中,快速而合理的解决方案胜过达到(如果有的话)全局最优解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Very Near Optimal Algorithm for the Traveling Salesman Problem
The Traveling Salesman Problem (TSP) is a P versus NP key problem that can be generalized to some instances of other problems. Using the commercial state-of-the-art branch-and-bound mixed integer linear programming solver (LINGO) solves the TSP problem in an amount of time that is proportional to a quadratic multiplied by an exponential of base two as a function of the number of cities or destinations. My algorithm solves the problem in a quadratic amount of time as a function of the number of cities or destinations. My algorithm basically solves the problem by sorting the cells in the cost or distance matrix from lower to higher values, while checking for cycles. My algorithm performs on average 43.67% better than LINGO for 100 cities or destinations. In the interconnected world of the present and future, fast and reasonably good solutions are better than reaching (if ever) the global optimal solution.
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