期刊
RANDOM STRUCTURES & ALGORITHMS
卷 57, 期 1, 页码 97-131出版社
WILEY
DOI: 10.1002/rsa.20914
关键词
Lovasz Local Lemma; Moser-Tardos algorithm; Boolean satisfiability; Independent transversals; Latin transversals
资金
- NSF [CNS 1010789, CCF 1422569]
The Lovasz local lemma (LLL) is a probabilistic tool to generate combinatorial structures with good local properties. The LLL-distribution further shows that these structures have good global properties in expectation. The seminal algorithm of Moser and Tardos turned the simplest, variable-based form of the LLL into an efficient algorithm; this has since been extended to other probability spaces including random permutations. One can similarly define an MT-distribution for these algorithms, that is, the distribution of the configuration they produce. We show new bounds on the MT-distribution in the variable and permutation settings which are significantly stronger than those known to hold for the LLL-distribution. As some example illustrations, we show a nearly tight bound on the minimum implicate size of a CNF Boolean formula, and we obtain improved bounds on weighted Latin transversals and partial Latin transversals.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据