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arXiv 0902.1661cs.CCcs.DS
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更快的精确带宽

Even Faster Exact Bandwidth

Marek Cygan, Marcin Pilipczuk

摘要:

我们处理精确的算法带宽,长期研究的NP-难问题。在很长一段时间里,没有什么比平凡的O*(n!)详尽的搜索是已知的。2000年,Feige和Kilian提出了O*(10^n)时间算法。最近,我们提出了一个运行时间为O*(5^n),空间为O*(2^n)的算法。在本文中,我们提出了一个主要的修改,我们的算法,使其运行在O(4.83 ^n)的时间与O*(4 ^n)的空间复杂度的成本。这种修改使我们能够对以前不用于此类问题的时间复杂度进行测量和征服分析。

英文摘要:

We deal with exact algorithms for Bandwidth, a long studied NP-hard problem. For a long time nothing better than the trivial O*(n!) exhaustive search was known. In 2000, Feige an Kilian came up with a O*(10^n)-time algorithm. Recently we presented algorithm that runs in O*(5^n) time and O*(2^n) space.. In this paper we present a major modification to our algorithm which makes it run in O(4.83^n) time with the cost of O*(4^n) space complexity. This modification allowed us to perform Measure & Conquer analysis for the time complexity which was not used for such types of problems before.

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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