A Bernstein–von Mises theorem in the nonparametric right-censoring model
A Bernstein–von Mises theorem in the nonparametric right-censoring model
复制标题
非参数右审查模型中的伯恩斯坦-冯·米塞斯定理
DOI:
--
复制
发表时间:
2004
期刊:
影响因子:
--
通讯作者:
Jaeyong Lee
中科院分区:
文献类型:
--
作者:
Yongdai Kim;Jaeyong Lee
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 .