A new Liu-type estimator in a mixed Poisson regression model

A new Liu-type estimator in a mixed Poisson regression model

Abstract Mixed Poisson regression models (MPRMs) are widely used for analyzing overdispersed count data. However, the presence of multicollinearity among explanatory variables poses challenges when estimating regression coefficients using the maximum likelihood estimator (MLE), leading to inflated v...

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Bibliographic Details
Main Authors: Ohud A. Alqasem, Ali T. Hammad, M. M. Abd El-Raouf, Abdirashid M. Yousuf, Ahmed M. Gemeay
Format: Article
Language:English
Published: Nature Portfolio 2025-05-01
Series:Scientific Reports
Subjects:
Generalized linear model
Liu-type estimator
Multicollinearity
Overdispersion
Poisson-modification of the quasi-Lindley regression model
Ridge estimator
Online Access:https://doi.org/10.1038/s41598-025-00948-w
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https://doi.org/10.1038/s41598-025-00948-w

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