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On the size of weights in randomized search heuristics

机译:随机搜索启发式中权重的大小

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摘要

Runtime analyses of randomized search heuristics for combinatorial optimization problems often depend on the size of the largest weight. We consider replacing the given set of weights with smaller weights such that the behavior of the randomized search heuristic does not change. Upper bounds on the size of the new, equivalent weights allow us to obtain upper bounds on the expected runtime of such randomized search heuristics independent of the size of the actual weights. Furthermore we give lower bounds on the largest weights for worst-case instances. Finally we present some experimental results, including examples for worst-case instances.
机译:针对组合优化问题的随机搜索试探法的运行时分析通常取决于最大权重的大小。我们考虑用较小的权重替换给定的权重集,以使随机搜索试探法的行为不会改变。新的等效权重的大小的上限使我们能够独立于实际权重的大小而获得此类随机搜索试探法的预期运行时间的上限。此外,对于最坏情况,我们对最大权重给出了下限。最后,我们提供了一些实验结果,包括最坏情况下的示例。

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