摘要
在这篇文章中,我们针对一般冲击模型,研究Bayes方法处理无失效数据的问题.所谓一般δ-冲击模型是指系统受到强度为λ的Poisson冲击,当两个连续冲击之间时间间隔的长度不属于某个固定的区间[δ_1,δ_2]时,系统将失效.我们分别选择均匀分布和Beta分布作为先验分布,用Bayes方法和多层Bayes方法得到了参数δ_1和δ_2的估计.
In this paper, we use Bayesian method to study the estimation problem of the parameters δ1 and δ2of the δ-shock model associated with a Poisson process with intensity λ under zerofailure data, where the system fails when the length of an interval between two success shocks does not fall in a prespecified interval [δ1,δ2]. By choosing U(0, 1) and a Beta distribution as the prior distribution of the parameters respectively, we obtain the Bayesian and hierarchical Bayesian estimators of threshold level δ1 and δ2.
出处
《应用概率统计》
CSCD
北大核心
2007年第1期51-58,共8页
Chinese Journal of Applied Probability and Statistics
基金
国家自然科学基金(No.10471057)
高等学校博士学科点专项科研基金(No.20050730002)资助项目