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Genetic Algorithm for Traveling Salesman Problem with Modified Cycle Crossover Operator

机译:修正周期交叉算子的旅行商问题的遗传算法

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摘要

Genetic algorithms are evolutionary techniques used for optimization purposes according to survival of the fittest idea. These methods do not ensure optimal solutions; however, they give good approximation usually in time. The genetic algorithms are useful for NP-hard problems, especially the traveling salesman problem. The genetic algorithm depends on selection criteria, crossover, and mutation operators. To tackle the traveling salesman problem using genetic algorithms, there are various representations such as binary, path, adjacency, ordinal, and matrix representations. In this article, we propose a new crossover operator for traveling salesman problem to minimize the total distance. This approach has been linked with path representation, which is the most natural way to represent a legal tour. Computational results are also reported with some traditional path representation methods like partially mapped and order crossovers along with new cycle crossover operator for some benchmark TSPLIB instances and found improvements.
机译:遗传算法是根据优胜劣汰的思想用于优化目的的进化技术。这些方法不能确保最佳解决方案。但是,它们通常会及时给出良好的近似值。遗传算法对于NP难题,尤其是旅行商问题非常有用。遗传算法取决于选择标准,交叉和变异算子。为了使用遗传算法解决旅行商问题,有各种表示形式,例如二进制,路径,邻接,序数和矩阵表示。在本文中,我们为旅行商问题提出了一种新的交叉算子,以最小化总距离。此方法已与路径表示联系在一起,这是表示合法游览的最自然的方法。还报告了一些传统路径表示方法的计算结果,例如部分映射和顺序交叉以及一些基准TSPLIB实例的新循环交叉运算符,并发现了改进之处。

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