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arXiv 1709.04848math.PR
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Stein因子的首中时和混合时间界

Hitting time and mixing time bounds of Stein's factors

Michael C. H. Choi

摘要:

对于任何离散的目标分布,我们利用之间的联系马尔可夫链和斯坦的方法,通过生成器的方法和表达的预期首中时的斯坦方程的解决方案。这就产生了新的上界斯泰因的因素的马尔可夫链的参数,如混合时间和梯度的预期首中时。我们比较这些界的性能与那些在文献中,特别是我们认为斯坦的方法离散均匀,二项,几何和超几何分布。作为另一个应用,相同的方法适用于通过Stein的因素约束预期首中时。本文重点介绍了Stein方法、现代马尔可夫链理论和经典波动理论之间的相互作用。

英文摘要:

For any discrete target distribution, we exploit the connection between Markov chains and Stein's method via the generator approach and express the solution of Stein's equation in terms of expected hitting time. This yields new upper bounds of Stein's factors in terms of the parameters of the Markov chain, such as mixing time and the gradient of expected hitting time. We compare the performance of these bounds with those in the literature, and in particular we consider Stein's method for discrete uniform, binomial, geometric and hypergeometric distribution. As another application, the same methodology applies to bound expected hitting time via Stein's factors. This article highlights the interplay between Stein's method, modern Markov chain theory and classical fluctuation theory.

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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