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arXiv 1608.01716cs.DScs.AI
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旅行商问题的多项式时间确定性方法

A Polynomial-Time Deterministic Approach to the Traveling Salesperson Problem

Drexel University(德雷塞尔大学);Binghamton University(宾汉姆顿大学)

Ali Jazayeri, Hiroki Sayama

摘要:

我们提出了一个新的多项式时间确定性算法,产生一个近似的解决方案的旅行推销员问题。该算法根据城市的优先级进行排名,这些城市的优先级是使用均值的幂函数和与其他城市距离的标准差计算的,然后将城市按优先级顺序连接到相邻城市。当连接一个城市时,根据邻居的优先级来选择邻居,优先级计算为另一个幂函数,该幂函数还包括邻居与要连接的焦点城市的距离。重复这个过程,直到所有的城市都连接成一个单一的循环。该算法的时间复杂度为$O(n^2)$,其中$n$是城市的数量。数值计算结果表明,尽管该算法简单,该算法产生较短的旅游与较低的时间复杂度比其他传统的旅游建设算法。该算法既可以单独使用,也可以作为其他更复杂的启发式优化算法的初始路径生成器。

英文摘要:

We propose a new polynomial-time deterministic algorithm that produces an approximated solution for the traveling salesperson problem. The proposed algorithm ranks cities based on their priorities calculated using a power function of means and standard deviations of their distances from other cities and then connects the cities to their neighbors in the order of their priorities. When connecting a city, a neighbor is selected based on their neighbors' priorities calculated as another power function that additionally includes their distance from the focal city to be connected. This repeats until all the cities are connected into a single loop. The time complexity of the proposed algorithm is $O(n^2)$, where $n$ is the number of cities. Numerical evaluation shows that, despite its simplicity, the proposed algorithm produces shorter tours with less time complexity than other conventional tour construction heuristics. The proposed algorithm can be used by itself or as an initial tour generator for other more complex heuristic optimization algorithms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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