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arXiv 2005.00066math.STstat.TH
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一般相依条件下Bayes多重检验的高维渐近理论及可能的误设

High-dimensional Asymptotic Theory of Bayesian Multiple Testing Procedures Under General Dependent Setup and Possible Misspecification

Noirrit Kiran Chandra, Sourabh Bhattacharya

摘要:

本文研究了一般相依情形下,当样本量和假设个数均趋于无穷大时,贝叶斯多重检验的渐近性质。具体来说,我们调查的程序和渐近性质的不同版本的虚假发现和虚假的非发现率的高维设置下的强一致性。我们特别关注一种新的贝叶斯非边际多重检验程序及其相关的差错率在这方面。我们的研究结果表明,差错率的渐近收敛率与真实模型的Kullback-Leibler发散直接相关,并且即使假设的模型类是错误的,结果仍然成立。为了说明我们的高维渐近理论,我们考虑贝叶斯变量选择问题的时变协变量选择框架,自回归响应变量。我们特别关注假设数量以比样本量更快的速度增加的设置,这就是所谓的超高维情况。

英文摘要:

In this article, we investigate the asymptotic properties of Bayesian multiple testing procedures under general dependent setup, when the sample size and the number of hypotheses both tend to infinity. Specifically, we investigate strong consistency of the procedures and asymptotic properties of different versions of false discovery and false non-discovery rates under the high dimensional setup. We particularly focus on a novel Bayesian non-marginal multiple testing procedure and its associated error rates in this regard. Our results show that the asymptotic convergence rates of the error rates are directly associated with the Kullback-Leibler divergence from the true model, and the results hold even when the postulated class of models is misspecified. For illustration of our high-dimensional asymptotic theory, we consider a Bayesian variable selection problem in a time-varying covariate selection framework, with autoregressive response variables. We particularly focus on the setup where the number of hypotheses increases at a faster rate compared to the sample size, which is the so-called ultra-high dimensional situation.

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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