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arXiv 0806.2914math.STstat.TH
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容许预测密度估计

Admissible predictive density estimation

Lawrence D. Brown, Edward I. George, Xinyi Xu

摘要:

设$X|μ\sim N_p(μ,v_xI)$和$Y|μ\sim N_p(μ,v_yI)$是具有共同未知均值$μ$的独立$p$维多元法向量。在观测$X=x$的基础上,我们考虑了在期望Kullback-Leibler损失下估计$Y$的真预测密度$p(y|μ)$的问题.这里我们的重点是这个问题的可受理程序的表征。我们证明了所有广义贝叶斯规则的类是一个完备类,Brown和Hwang [统计决策论及相关主题(1982)III 205- 230]中易于解释的条件足以使形式贝叶斯规则是可容许的。

英文摘要:

Let $X|μ\sim N_p(μ,v_xI)$ and $Y|μ\sim N_p(μ,v_yI)$ be independent $p$-dimensional multivariate normal vectors with common unknown mean $μ$. Based on observing $X=x$, we consider the problem of estimating the true predictive density $p(y|μ)$ of $Y$ under expected Kullback--Leibler loss. Our focus here is the characterization of admissible procedures for this problem. We show that the class of all generalized Bayes rules is a complete class, and that the easily interpretable conditions of Brown and Hwang [Statistical Decision Theory and Related Topics (1982) III 205--230] are sufficient for a formal Bayes rule to be admissible.

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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