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arXiv 1402.3569stat.CO
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von Mises分布后验抽样的快速算法

A Fast Algorithm for Sampling from the Posterior of a von Mises distribution

Peter G. M. Forbes, Kanti V. Mardia

摘要:

在分子生物学的推动下,方向统计学的研究活动特别是贝叶斯统计学方面的研究活动出现了高潮。圆形病例的中心分布为von Mises分布,其具有两个参数(平均值和浓度),类似于单变量正态分布。然而,从浓度参数的后验分布有效地采样一直是一个挑战。我们描述了一种新的,高效的算法,从后验分布采样,并填补这一长期存在的差距。

英文摘要:

Motivated by molecular biology, there has been an upsurge of research activities in directional statistics in general and its Bayesian aspect in particular. The central distribution for the circular case is von Mises distribution which has two parameters (mean and concentration) akin to the univariate normal distribution. However, there has been a challenge to sample efficiently from the posterior distribution of the concentration parameter. We describe a novel, highly efficient algorithm to sample from the posterior distribution and fill this long-standing gap.

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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