精确树深问题的一种算法
An Algorithm for the Exact Treedepth Problem
摘要:
我们提出了一种新的算法的最小深度消除树问题,这是等价的最佳树深度分解问题。我们的算法利用两个廉价计算的下界函数来修剪搜索树,以及破坏和支配规则。我们提出了一个实证研究表明,该算法优于目前国家的最先进的求解器(这是基于SAT编码)的数量级的范围内的图形类。
英文摘要:
We present a novel algorithm for the minimum-depth elimination tree problem, which is equivalent to the optimal treedepth decomposition problem. Our algorithm makes use of two cheaply-computed lower bound functions to prune the search tree, along with symmetry-breaking and domination rules. We present an empirical study showing that the algorithm outperforms the current state-of-the-art solver (which is based on a SAT encoding) by orders of magnitude on a range of graph classes.
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