Belief Propagation Guided Decimation Fails on Random Formulas
Belief Propagation Guided Decimation Fails on Random Formulas
复制标题
信念传播引导抽取在随机公式上失败
DOI:
10.1145/3005398
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发表时间:
2017
影响因子:
2.5
通讯作者:
Coja-Oghlan A
中科院分区:
文献类型:
--
作者:
Coja-Oghlan A
Let Φ be a uniformly distributed randomk-SAT formula withnvariables andmclauses. Nonconstructive arguments show that Φ is satisfiable for clause/variable ratiosm/n⩽rk− SAT∼ 2kln 2 with high probability. Yet no efficient algorithm is known to find a satisfying assignment beyondm/n∼ 2kln (k)/kwith a nonvanishing probability. On the basis of deep but nonrigorous statistical mechanics ideas, a message passing algorithm calledBelief Propagation Guided Decimationhas been put forward (Mézard, Parisi, Zecchina: Science 2002; Braunstein, Mézard, Zecchina: Random Struc. Algorithm 2005). Experiments suggested that the algorithm might succeed for densities very close tork− SATfork= 3, 4, 5 (Kroc, Sabharwal, Selman: SAC 2009). Furnishing the first rigorous analysis of this algorithm on a nontrivial input distribution, in the present article we show that Belief Propagation Guided Decimation fails to solve randomk-SAT formulas already form/n=O(2k/k), almost a factor ofkbelow the satisfiability thresholdrk− SAT. Indeed, the proof refutes a key hypothesis on which Belief Propagation Guided Decimation hinges for suchm/n.
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DOI:
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发表时间:
2000
期刊:
Proceedings 41st Annual Symposium on Foundations of Computer Science
影响因子:
--
作者:
D. Achlioptas;G. Sorkin
通讯作者:
G. Sorkin
DOI:
--
发表时间:
2016
期刊:
International Colloquium on Automata, Languages and Programming
影响因子:
--
作者:
S. Hetterich
通讯作者:
S. Hetterich
DOI:
--
发表时间:
2006
期刊:
ACM-SIAM Symposium on Discrete Algorithms
影响因子:
--
作者:
A. Montanari;Devavrat Shah
通讯作者:
Devavrat Shah
影响因子:
0.8
作者:
A. Montanari;R. Restrepo;P. Tetali
通讯作者:
P. Tetali
DOI:
--
发表时间:
2004
期刊:
ACM-SIAM Symposium on Discrete Algorithms
影响因子:
--
作者:
D. Achlioptas;P. Beame;Michael Molloy
通讯作者:
Michael Molloy