Bayesian hypotheses testing using posterior density ratios

被引:9
作者
Basu, S [1 ]
机构
[1] UNIV ARKANSAS,DEPT MATH SCI,FAYETTEVILLE,AR 72701
关键词
Bayes factor; hypothesis test; likelihood ratio; posterior; robust Bayes;
D O I
10.1016/0167-7152(95)00204-9
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
The posterior density ratio sup(theta is an element of H0) pi(theta/data)/sup(theta is an element of H1) pi(theta/data) is proposed as a new criterion for Bayesian hypothesis testing. The performances of the posterior density ratio and the posterior probability of H-0 are compared in point null hypothesis, precise hypothesis and one sided hypothesis tests. It is found that the likelihood ratio and the lower bound of the posterior density ratio over a scale mixture class of priors match in point null hypothesis testing. They, however, do not match in one sided testing.
引用
收藏
页码:79 / 86
页数:8
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