| 混合双参数指数分布的贝叶斯估计 |
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| 引用本文： | 田玉柱,安乐,陈平.混合双参数指数分布的贝叶斯估计[J].甘肃科学学报,2008,20(3). |
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| 作者姓名： | 田玉柱 安乐 陈平 |
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| 作者单位： | 1. 天水师范学院,数学与统计学院,甘肃,天水,741001
2. 东南大学,数学系,江苏,南京,211189 |
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| 摘 要： | 混合指数分布是寿命数据分析中一个重要分布,其极大似然估计由于似然函数的复杂性而变得很困难.文献9]应用EM算法研究了混合指数算法讨论了完全数据和截尾数据情形下有限混合双参数指数分布参数分布的参数估计问题,模拟研究表明贝叶斯方法对该模型的参数估计是有效的.
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| 关 键 词： | 混合指数分布 Gibbs抽样 完全数据 截尾数据 |
Bayesian Estimation for a Finite Mixed Exponential Distribution |
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| TIAN Yu-zhu,AN Le,CHEN Ping.Bayesian Estimation for a Finite Mixed Exponential Distribution[J].Journal of Gansu Sciences,2008,20(3). |
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| Authors: | TIAN Yu-zhu AN Le CHEN Ping |
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| Institution: | 1.Department of Mathenatics and Statistics;Tianshui Normal Cillege;Tianshui 741001;China;2.Department of Mathematics;Southeast University;Nanjing 211189;China |
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| Abstract: | The mixed exponential distribution plays an important part in lifetime data analysis but we may suffer from extreme difficulties to get the maximal likelihood estimate due to the complexity of likelihood function,ZHU Liping etc.(2006) employed the EM algorithm to study parameters estimation of a mixture model of exponential distributions and obtained good results.We study parameters estimation of a finite mixture model of exponential distributions with two parameters under full data and censored data by mea... |
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| Keywords: | mixed exponential distribution Gibbs sampler full data censored data |
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