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arXiv cs/0509038cs.DS
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最大汉明精确可满足性算法

Algorithms for Max Hamming Exact Satisfiability

Vilhelm Dahllof

摘要:

我们在这里研究最大汉明XSAT,即,在最大汉明距离找到两个XSAT模型的问题。通过使用最近的XSAT求解器作为辅助函数,可以构造O(1.911^n)时间算法,其中n是变量的数量。这个时间上限可以通过引入一种新的分支来进一步改进为O(1.8348^n),更直接地适合于在最大汉明距离下找到模型。这里提出的技术可能是实际使用以及理论价值,证明有最大汉明距离问题的非平凡算法。

英文摘要:

We here study Max Hamming XSAT, ie, the problem of finding two XSAT models at maximum Hamming distance. By using a recent XSAT solver as an auxiliary function, an O(1.911^n) time algorithm can be constructed, where n is the number of variables. This upper time bound can be further improved to O(1.8348^n) by introducing a new kind of branching, more directly suited for finding models at maximum Hamming distance. The techniques presented here are likely to be of practical use as well as of theoretical value, proving that there are non-trivial algorithms for maximum Hamming distance problems.

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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