Typical solution time for a vertex-covering algorithm on finite-connectivity random graphs
无序系统与神经网络
2009-10-31 v2 统计力学
计算复杂性
摘要
In this letter, we analytically describe the typical solution time needed by a backtracking algorithm to solve the vertex-cover problem on finite-connectivity random graphs. We find two different transitions: The first one is algorithm-dependent and marks the dynamical transition from linear to exponential solution times. The second one gives the maximum computational complexity, and is found exactly at the threshold where the system undergoes an algorithm-independent phase transition in its solvability. Analytical results are corroborated by numerical simulations.
引用
@article{arxiv.cond-mat/0009417,
title = {Typical solution time for a vertex-covering algorithm on finite-connectivity random graphs},
author = {Martin Weigt and Alexander K. Hartmann},
journal= {arXiv preprint arXiv:cond-mat/0009417},
year = {2009}
}
备注
4 pages, 2 figures, to appear in Phys. Rev. Lett