A simple 7/3-approximation algorithm for feedback vertex set in tournaments
Combinatorics
2020-08-21 v1 Discrete Mathematics
Abstract
We show that performing just one round of the Sherali-Adams hierarchy gives an easy 7/3-approximation algorithm for the Feedback Vertex Set (FVST) problem in tournaments. This matches the best deterministic approximation algorithm for FVST due to Mnich, Williams, and V\'egh, and is a significant simplification and runtime improvement of their approach.
Cite
@article{arxiv.2008.08779,
title = {A simple 7/3-approximation algorithm for feedback vertex set in tournaments},
author = {Manuel Aprile and Matthew Drescher and Samuel Fiorini and Tony Huynh},
journal= {arXiv preprint arXiv:2008.08779},
year = {2020}
}
Comments
14 pages, 4 figures