arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1307.7846cond-mat.stat-mechcond-mat.dis-nn
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置信传播引导的蒙特卡罗抽样

Belief-Propagation Guided Monte-Carlo Sampling

Aurélien Decelle, Florent Krzakala

摘要:

提出了一种用于离散统计模型的蒙特卡罗算法,该算法结合了置信传播算法的全部功能和详细平衡热浴方法的优点。首先随机抽取因子图中的一棵子树;然后使用置信传播作为一个完美的采样器,在给定边界条件的情况下在树上生成一个配置,并迭代该过程。这种方法最适合于局部树型图,因此,它是测试的随机图的自旋玻璃模型的硬情况下,展示其在这些情况下的最先进的状态。

英文摘要:

A Monte-Carlo algorithm for discrete statistical models that combines the full power of the Belief Propagation algorithm with the advantages of a detailed-balanced heat bath approach is presented. A sub-tree inside the factor graph is first extracted randomly; Belief Propagation is then used as a perfect sampler to generate a configuration on the tree given the boundary conditions and the procedure is iterated. This appoach is best adapted for locally tree like graphs, it is therefore tested on the hard cases of spin-glass models for random graphs demonstrating its state-of-the art status in those cases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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