Improved Analysis of Highest-Degree Branching for Feedback Vertex Set
Improved Analysis of Highest-Degree Branching for Feedback Vertex Set
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DOI:
10.1007/s00453-021-00815-w
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发表时间:
2019-05
期刊:
影响因子:
1.1
通讯作者:
Yoichi Iwata;Yusuke Kobayashi
中科院分区:
文献类型:
--
作者:
Yoichi Iwata;Yusuke Kobayashi
Recent empirical evaluations of exact algorithms forFeedback Vertex Sethave demonstrated the efficiency of a highest-degree branching algorithm with a degree-based pruning. In this paper, we prove that this empirically fast algorithm runs intime, wherekis the solution size. This improves the previous best-time deterministic algorithm obtained by Kociumaka and Pilipczuk (Inf Process Lett 114:556–560, 2014. https://doi.org/10.1016/j.ipl.2014.05.001 ).