国防科学技术大学机电工程与自动化学院,长沙,410073
纸质出版:2003
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张湘平, 张金槐, 谢红卫. 关于样本容量、验前信息与Bayes决策风险的若干讨论[J]. 电子学报, 2003,31(4):536-538.
ZHANG Xiang-ping, ZHANG Jin-huai, XIE Hong-wei. A Few Discussion of Samples,a Prior Information and Bayesian Statistical Decision[J]. Acta Electronica Sinica, 2003, 31(4): 536-538.
针对工程实际中所普遍存在的小子样问题
分析验前信息和样本容量大小对Bayes决策的影响.将验前费用和试验费用引入到损失函数中
研究样本容量大小、验前信息以及Bayes决策风险三者之间的关系.并在给定决策风险上限和总费用的条件下
理论上推导样本容量大小、验前信息的可信度、总费用以及Bayes决策风险关系式
从而为小子样条件下
找到验前信息可信度的保证下限提供了理论依据.
Considering the problem of small samples in engineering
we analyze the effect of
a priori
information credibility and samples in Bayesian statistical decision.The relation of samples
a priori
information and Bayesian statistical decision adventure is studied by introducing
a priori
cost and testing into the Bayesian loss function.Under the condition of given the decision adventure limitation and total cost
two relation formula about samples
a priori
information credibility
total cost and Bayesian statistical decision adventure have been deduced on theory.Therefore
under the condition of small samples
a kind of theorical method to find the bottomline of
a priori
information credibility is presented.
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