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On the three-component mixture of exponential distributions: A Bayesian framework to model data with multiple lower and upper outliers

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  • Okhli, Kheirolah
  • Jabbari Nooghabi, Mehdi

Abstract

The presence of lower and upper outliers in the dataset may cause misleading inferential conclusions in the applied statistical problems. This paper introduces the three-component mixture of exponential (3-CME) distributions as an alternative platform for analyzing positive datasets in the presence of multiple lower and upper outliers. We obtain the parameter estimates with a focus on the Bayesian methodology. In order to investigate the performance of the presented approach, five simulation studies are conducted. We show that the proposed outlier model can be selected as an appropriate alternative model in dealing with the data with and without lower and upper outliers. The performance of the Bayes estimators under different loss functions with various sample sizes and the number of outliers are also investigated. Finally, two examples of real data are studied to illustrate the superiority of the 3-CME distributions in analyzing dataset and detecting lower and upper outliers.

Suggested Citation

  • Okhli, Kheirolah & Jabbari Nooghabi, Mehdi, 2023. "On the three-component mixture of exponential distributions: A Bayesian framework to model data with multiple lower and upper outliers," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 208(C), pages 480-500.
    • Handle: RePEc:eee:matcom:v:208:y:2023:i:c:p:480-500
    DOI: 10.1016/j.matcom.2023.01.037
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    References listed on IDEAS

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