Papers › Improved Analysis of Highest-Degree Branching for Feedback Vertex Set
Improved Analysis of Highest-Degree Branching for Feedback Vertex Set
Yoichi Iwata, Yusuke Kobayashi
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Recent empirical evaluations of exact algorithms for Feedback Vertex Set have demonstrated the efficiency of a highest-degree branching algorithm with a degree-based pruning heuristic. In this paper, we prove that this empirically fast algorithm runs in O(3.460ᵏ n) time, where k is the solution size. This improves the previous best O(3.619ᵏ n)-time deterministic algorithm obtained by Kociumaka and Pilipczuk.
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