A Bernstein–von Mises theorem in the nonparametric right-censoring model

A Bernstein–von Mises theorem in the nonparametric right-censoring model
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非参数右审查模型中的伯恩斯坦-冯·米塞斯定理

DOI:
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发表时间:
2004
期刊:
影响因子:
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通讯作者:
Jaeyong Lee
Jaeyong Lee
中科院分区:
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文献类型:
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作者:
Yongdai Kim;Jaeyong Lee

文献摘要

被引文献

相似文献

在最近的贝叶斯非参数文献中,已经报道了许多例子,其中贝叶斯估计和后验分布没有达到最优收敛速度,表明Bernstein-von Mises定理不成立。在这篇文章中,我们给出了一个积极的结果,在这个方向上,表明伯恩斯坦-冯米塞斯定理在生存模型中的一大类事先中立的权利。我们还表明,对于任意给定的收敛率n -α(0 < α ≤ 1/2),可以选择向右中性的先验过程,以便其后验分布达到收敛率n -α。
In the recent Bayesian nonparametric literature, many examples have been reported in which Bayesian estimators and posterior distributions do not achieve the optimal convergence rate, indicating that the Bernstein-von Mises theorem does not hold. In this article, we give a positive result in this direction by showing that the Bernstein-von Mises theorem holds in survival models for a large class of prior processes neutral to the right. We also show that, for an arbitrarily given convergence rate n -α with 0 < α ≤ 1/2, a prior process neutral to the right can be chosen so that its posterior distribution achieves the convergence rate n -α .