Bayesian inference for the randomly censored Weibull distribution

被引:25
作者
Danish, Muhammad Yameen [1 ]
Aslam, Muhammad [2 ]
机构
[1] Allama Iqbal Open Univ, Dept Math & Stat, Islamabad, Pakistan
[2] Quaid I Azam Univ, Dept Stat, Islamabad 45320, Pakistan
关键词
random censoring; squared error loss function; prior distribution; Bayes estimates; importance sampling; Gibbs sampling; Lindley's approximation; Markov chain Monte Carlo; INFORMATION;
D O I
10.1080/00949655.2012.704516
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
In this paper, we consider the Bayesian inference of the unknown parameters of the randomly censored Weibull distribution. A joint conjugate prior on the model parameters does not exist; we assume that the parameters have independent gamma priors. Since closed-form expressions for the Bayes estimators cannot be obtained, we use Lindley's approximation, importance sampling and Gibbs sampling techniques to obtain the approximate Bayes estimates and the corresponding credible intervals. A simulation study is performed to observe the behaviour of the proposed estimators. A real data analysis is presented for illustrative purposes.
引用
收藏
页码:215 / 230
页数:16
相关论文
共 18 条
[1]  
Abu-Taleb Ahmed A., 2007, Journal of Mathematics and Statistics, V3, P106, DOI 10.3844/jmssp.2007.106.108
[2]  
[Anonymous], 2008, DATA SCI J
[3]   Progressive censoring methodology: an appraisal [J].
Balakrishnan, N. .
TEST, 2007, 16 (02) :211-259
[4]   A SIMPLE ALGORITHM FOR GENERATING RANDOM VARIATES WITH A LOG-CONCAVE DENSITY [J].
DEVROYE, L .
COMPUTING, 1984, 33 (3-4) :247-257
[5]   FISHERS INFORMATION IN TERMS OF THE HAZARD RATE [J].
EFRON, B ;
JOHNSTONE, IM .
ANNALS OF STATISTICS, 1990, 18 (01) :38-62
[6]  
Friesl M, 2007, KYBERNETIKA, V43, P45
[7]   STOCHASTIC RELAXATION, GIBBS DISTRIBUTIONS, AND THE BAYESIAN RESTORATION OF IMAGES [J].
GEMAN, S ;
GEMAN, D .
IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, 1984, 6 (06) :721-741
[8]   On the comparison of Fisher information of the Weibull and GE distributions [J].
Gupta, Rameshwar D. ;
Kundu, Debasis .
JOURNAL OF STATISTICAL PLANNING AND INFERENCE, 2006, 136 (09) :3130-3144
[9]   Generalized exponential distributions [J].
Gupta, RD ;
Kundu, D .
AUSTRALIAN & NEW ZEALAND JOURNAL OF STATISTICS, 1999, 41 (02) :173-188
[10]  
Kalbfleisch John D., 2002, STAT ANAL FAILURE TI