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Genetic algorithms for partitioning sets

机译:划分集的遗传算法

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摘要

We first revisit a problem from the literature, that of partitioning a given set of numbers into subsets such that their sums are as nearly equal as possible. We devise a new genetic algorithm, Eager Breeder, for this problem. The algorithm is distinctive in its novel and aggressive way of extracting parental genetic material when forming a child partition, and its results are a substantial improvement upon prior results from the literature. Then we extend our algorithm to the more general setting, of partitioning a set in the case that the environment provides us a measure of the fitness of individual subsets in the partition. We apply the extension to two artificial problems, one with a targeted partition whose subsets are of very diverse sizes, and one whose subsets are the same size. Finally, we apply our approach to several map coloring problems, and obtain good results there as well. In our different stages of work, we exploit different heuristics, which are attuned to the particular partitioning problem under attack.
机译:我们首先回顾文献中的一个问题,即将给定的一组数字划分为子集,以使它们的总和尽可能接近相等。针对此问题,我们设计了一种新的遗传算法,即Eager Breeder。该算法的独特之处在于它在形成子分区时提取父母遗传材料的新颖而激进的方式,其结果是对文献先前结果的重大改进。然后,在环境为我们提供分区中各个子集的适用性度量的情况下,将算法扩展到更通用的设置,即对一个集进行分区。我们将该扩展应用于两个人为问题,一个具有目标分区,其子集大小各异,另一个具有相同大小的子集。最后,我们将我们的方法应用于多个地图着色问题,并在那里也获得了良好的结果。在我们不同的工作阶段,我们利用不同的启发式方法,这些启发式方法适用于受到攻击的特定分区问题。

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