Some properties of the dirichlet-multinomial distribution and its use in prior elicitation
Some properties of the dirichlet-multinomial distribution and its use in prior elicitation
复制标题
狄利克雷多项分布的一些性质及其在先验启发中的应用
DOI:
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发表时间:
1987
期刊:
影响因子:
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通讯作者:
G. Duncan
中科院分区:
文献类型:
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作者:
K. Chaloner;G. Duncan
Two results on the unimodality of the Dirichlet-multinomial distribution are proved, and a further result is alos proved on the identifiability of mixtures of multinomial distributions. These properties are used in developing a method for eliciting a Dirchlet prior distribution. The elicitation method is based on the mode, and region around the mode, of the Dirichlet-multinomial predictive distribution.