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arXiv 0801.4410stat.MEmath.STstat.TH
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具有广义g-先验的全贝叶斯因子

Fully Bayes factors with a generalized g-prior

Yuzo Maruyama, Edward I. George

摘要:

对于正常的线性模型变量的选择问题,我们提出了选择标准的基础上,充分贝叶斯制定与Zellner的$g$ -前,允许$p>n$的推广。一个特殊的情况下,事先制定的边际密度和贝叶斯因子,揭示了新的模型评估特性的潜在利益产生听话的封闭形式。

英文摘要:

For the normal linear model variable selection problem, we propose selection criteria based on a fully Bayes formulation with a generalization of Zellner's $g$-prior which allows for $p>n$. A special case of the prior formulation is seen to yield tractable closed forms for marginal densities and Bayes factors which reveal new model evaluation characteristics of potential interest.

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