PPSZ for General k-SAT - Making Hertli's Analysis Simpler and 3-SAT Faster
PPSZ for General k-SAT - Making Hertli's Analysis Simpler and 3-SAT Faster
复制标题
适用于通用 k-SAT 的 PPSZ - 使 Hertli 的分析更简单,3-SAT 更快
DOI:
10.4230/lipics.ccc.2017.9
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发表时间:
2017
期刊:
影响因子:
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通讯作者:
J. Steinberger
中科院分区:
文献类型:
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作者:
Dominik Scheder;J. Steinberger
The currently fastest known algorithm for k-SAT is PPSZ named after its inventors Paturi, Pudlak, Saks, and Zane. Analyzing its running time is much easier for input formulas with a unique satisfying assignment. In this paper, we achieve three goals. First, we simplify Hertli's analysis for input formulas with multiple satisfying assignments. Second, we show a "translation result": if you improve PPSZ for k-CNF formulas with a unique satisfying assignment, you will immediately get a (weaker) improvement for general k-CNF formulas. Combining this with a result by Hertli from 2014, in which he gives an algorithm for Unique-3-SAT slightly beating PPSZ, we obtain an algorithm beating PPSZ for general 3-SAT, thus obtaining the so far best known worst-case bounds for 3-SAT.
DOI:
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发表时间:
2010
期刊:
Proceedings of the 21^<st> International Symposium on Algorithms and Computation, LNCS
影响因子:
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作者:
K.Iwama;K.Seto;T.Takai;S.Tamaki
通讯作者:
S.Tamaki
DOI:
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发表时间:
2008
期刊:
Discrete Mathematics 308
影响因子:
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作者:
Y. Hiramine;C. Suetake;K. Akiyama C. Suetake
通讯作者:
K. Akiyama C. Suetake