广义逐步混合截尾下Marshall-Olkin 扩展指数分布的可靠性分析

被引:5
作者
肖金安
贺兴时
王燕
机构
[1] 西安工程大学理学院
关键词
Marshall-Olkin扩展指数分布; 广义逐步混合截尾; Metropolis-Hastings抽样算法; 参数估计;
D O I
10.13338/j.issn.1006-8341.2019.03.015
中图分类号
O213.2 [可靠性理论]; O212.1 [一般数理统计];
学科分类号
070103 [概率论与数理统计];
摘要
研究Marshall-Olkin扩展指数分布的可靠性指标。基于该分布的广义逐步混合截尾模型,通过经典估计和贝叶斯估计给出该分布的未知参数估计。利用数值迭代方法和渐近正态理论,给出未知参数的最大似然估计值及渐进置信区间。在先验分布为伽马分布的条件下,利用Metropolis-Hastings抽样算法得到了未知参数的贝叶斯估计值和最大后验密度可信区间。数值模拟结果表明,贝叶斯估计的均方误差和区间长度均优于经典估计方法。
引用
收藏
页码:317 / 323
页数:7
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