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arXiv 1508.02071cs.CC
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关于逾渗与$NP$ -硬度

On Percolation and $NP$-Hardness

Daniel Reichman, Igor Shinkar

摘要:

我们考虑的鲁棒性的问题,其输入是通过应用独立的随机删除的最坏情况下的计算硬度。对于一些经典的$NP$ -hard问题,如着色、顶点覆盖和Hamilton性,我们研究了当任意图的边(或顶点)以概率$1-p > 0$被独立删除时这些问题的复杂性.我们证明,对于$n$ -顶点图,这些问题仍然很难在最坏的情况下,只要$p > \frac{1}{n^{1-ε}}$为任意$ε\in (0,1)$,除非$NP \subseteq BPP$。我们还证明了硬度结果约束满足问题,其中随机删除应用到条款或变量,以及子集和问题,其中一个给定的实例的项目被随机删除。

英文摘要:

We consider the robustness of computational hardness of problems whose input is obtained by applying independent random deletions to worst-case instances. For some classical $NP$-hard problems on graphs, such as Coloring, Vertex-Cover, and Hamiltonicity, we examine the complexity of these problems when edges (or vertices) of an arbitrary graph are deleted independently with probability $1-p > 0$. We prove that for $n$-vertex graphs, these problems remain as hard as in the worst-case, as long as $p > \frac{1}{n^{1-ε}}$ for arbitrary $ε\in (0,1)$, unless $NP \subseteq BPP$. We also prove hardness results for Constraint Satisfaction Problems, where random deletions are applied to clauses or variables, as well as the Subset-Sum problem, where items of a given instance are deleted at random.

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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