OASIcs.SOSA.2018.1.pdf
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A Naive Algorithm for Feedback Vertex Set
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1st Symposium on Simplicity in Algorithms (SOSA 2018)
Series: Open Access Series in Informatics (OASIcs) - License:
Creative Commons Attribution 3.0 Unported license
- Publication Date: 2018-01-05
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Yixin Cao. A Naive Algorithm for Feedback Vertex Set. In 1st Symposium on Simplicity in Algorithms (SOSA 2018). Open Access Series in Informatics (OASIcs), Volume 61, pp. 1:1-1:9, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)
https://doi.org/10.4230/OASIcs.SOSA.2018.1
Abstract
Given a graph on n vertices and an integer k, the feedback vertex set problem asks for the deletion of at most k vertices to make the graph acyclic. We show that a greedy branching algorithm, which always branches on an undecided vertex with the largest degree, runs in single-exponential time, i.e., O(c^k n^2) for some constant c.
Subject Classification
Keywords
- greedy algorithm
- analysis of algorithms
- branching algorithm
- parameterized computation -- graph modification problem
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