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Somayeh Ghafouri

Somayeh Ghafouri

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0002-5966-8406
Education: PhD.
ScopusId: 57191919549
Faculty: Science
Address: Arak University
Phone:

Research

Title
Bayesian Two-sample Prediction with Progressively Censored Data for Generalized Exponential Distribution Under Symmetric and Asymmetric Loss Functions
Type
JournalPaper
Keywords
Bayesian prediction; generalized exponential model; gibbs sampling; LINEX loss function; Markov Chain Monte Carlo; progressive type-II censoring scheme; two-sample prediction
Year
2015
Journal Journal of Statistical research of Iran
DOI
Researchers Somayeh Ghafouri

Abstract

Statistical prediction analysis plays an important role in a wide range of fields. Examples include engineering systems, design of experiments, etc. In this paper, based on progressively Type-II right censored data, Bayesian two-sample point and interval predictors are developed under both informative and non-informative priors. By assuming a generalized exponential model, prediction bounds as well as Bayes point predictors are obtained under the squared error loss (SEL) and the Linear-Exponential (LINEX) loss functions for the order statistic in a future progressively Type-II censored sample with an arbitrary progressive censoring scheme. The derived results may be used for prediction of total time on test in lifetime experiments. In addition to numerical method, Gibbs sampling procedure (as Markov Chain Monte Carlo method) are used to assess approximate prediction bounds and Bayes point predictors under the SEL and LINEX loss functions. The performance of the proposed prediction procedures are also demonstrated via a Monte Carlo simulation study and an illustrative example, for each method.