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Monitoring the performance of Bayesian EWMA control chart using loss functions

  • Salma Riaz
  • , Muhammad Riaz
  • , Zawar Hussain*
  • , Tahir Abbas
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

In this article, Bayesian approach is used to develop exponentially weighted moving average (EWMA) control chart under non-informative and informative priors and loss functions for small to moderate shift detection in the process. The performance of Bayesian EWMA control chart has been evaluated using ARL and SDRL. Simulations are performed to compute the performance measures for various values of smoothing constant and sample size. Sensitivity analysis of hyper-parameters of informative (conjugate) prior is also performed. To highlight the performance of Bayesian EWMA chart, we have presented two real life applications for illustrative purpose. The recommendations are also given for the future.

Original languageEnglish
Pages (from-to)426-436
Number of pages11
JournalComputers and Industrial Engineering
Volume112
DOIs
StatePublished - Oct 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd

Keywords

  • Bayesian approach
  • Exponentially weighted moving average
  • Linex loss function
  • Precautionary loss function
  • Squared error loss function

ASJC Scopus subject areas

  • General Computer Science
  • General Engineering

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