最大权重匹配的最大积-重温
Max-Product for Maximum Weight Matching - Revisited
摘要:
我们专注于信任传播的分配问题,也被称为最大权重二分匹配问题。我们提供了一个建设性的证明,众所周知的迭代次数的上限(Bayati,沙阿,夏尔马2008年)是紧到四个因素。此外,我们调查的行为时,不需要收敛的信念传播。我们表明,一个尖锐的近似所需的迭代次数消耗了很大一部分的收敛时间。最后,我们提出了一个“近似置信传播”算法的分配问题。
英文摘要:
We focus on belief propagation for the assignment problem, also known as the maximum weight bipartite matching problem. We provide a constructive proof that the well-known upper bound on the number of iterations (Bayati, Shah, Sharma 2008) is tight up to a factor of four. Furthermore, we investigate the behavior of belief propagation when convergence is not required. We show that the number of iterations required for a sharp approximation consumes a large portion of the convergence time. Finally, we propose an "approximate belief propagation" algorithm for the assignment problem.
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