2025/12/5
Hossein Bevrani

Hossein Bevrani

Academic rank: Professor
ORCID: 0000-0003-4658-9095
Education: PhD.
H-Index:
Faculty: Faculty of Science
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E-mail: hossein.Bevrani [at] uok.ac.ir
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Research

Title
Parameter Estimation for Lomax Exponential Distribution with Type-II Censored Data
Type
Presentation
Keywords
Expectation-Maximization algorithm, Lomax exponential distribution, type-II censoring.
Year
2024
Researchers Soheila Akbari Bargoshadi ، Hossein Bevrani ، Hossein Gholami

Abstract

In this article, we explore the estimation of parameters for the Lomax exponential distribution, which is a flexible model used for modeling lifetime data with both increasing and decreasing shapes. We focus on the type-II censoring scheme and derive the maximum likelihood estimator of the parameters using the Expectation- Maximization algorithm. We also calculate approximate confidence intervals based on the missing information matrix. To evaluate the e activeness of our proposed method, we conduct a Monte Carlo simulation study with varying sample sizes, and we demonstrate its usefulness by analyzing real dataset.