Bayesian analysis of head and neck cancer data using generalized inverse Lindley stress-strength reliability model

In this article, we present the analysis of head and neck cancer data using generalized inverse Lindley stress-strength reliability model. We propose Bayes estimators for estimating P(X > Y), when X and Y represent survival times of two groups of cancer patients observed under different therapies...

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Bibliographic Details
Published in:Communications in statistics. Theory and methods 2018-03, Vol.47 (5), p.1155-1180
Main Author: Sharma, Vikas Kumar
Format: Article
Language:English
Subjects:
Bayes estimator
Bayesian analysis
bootstrap
Cancer
Computer simulation
Generalized inverse
generalized inverse Lindley distribution
Head & neck cancer
Markov chains
maximum likelihood estimator
Maximum likelihood estimators
Monte Carlo simulation
Parameter estimation
Random variables
Reliability analysis
stress-strength reliability
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Summary:In this article, we present the analysis of head and neck cancer data using generalized inverse Lindley stress-strength reliability model. We propose Bayes estimators for estimating P(X > Y), when X and Y represent survival times of two groups of cancer patients observed under different therapies. The X and Y are assumed to be independent generalized inverse Lindley random variables with common shape parameter. Bayes estimators are obtained under the considerations of symmetric and asymmetric loss functions assuming independent gamma priors. Since posterior becomes complex and does not possess closed form expressions for Bayes estimators, Lindley's approximation and Markov Chain Monte Carlo techniques are utilized for Bayesian computation. An extensive simulation experiment is carried out to compare the performances of Bayes estimators with the maximum likelihood estimators on the basis of simulated risks. Asymptotic, bootstrap, and Bayesian credible intervals are also computed for the P(X > Y).
ISSN:0361-0926
1532-415X
DOI:10.1080/03610926.2017.1316858