Publications by authors named "Ali T Hammad"

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New robust estimator for handling outliers and multicollinearity in gamma regression model with application to breast cancer data.
Arwa M Alshangiti, Ahmed M Gemeay, Mahmoud E Bakr, Abdirashid M Yousuf, M A El-Qurashi, Ali T Hammad

Sci Rep· November 2025

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A bias-reduced estimator for generalized Poisson regression with application to carbon dioxide emission in Canada.
Fatimah M Alghamdi, Ahmed M Gemeay, Gamal A Abd-Elmougod, Ehab M Almetwally, M A El-Qurashi, Ali T Hammad

Sci Rep· November 2025

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Development of the generalized ridge estimator for the Poisson-Inverse Gaussian regression model with multicollinearity.
Fatimah A Almulhim, Ali T Hammad, M E Bakr, Oluwafemi Samson Balogun, Alexis Habineza

Sci Rep· August 2025

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New two parameter hybrid estimator for zero inflated negative binomial regression models.
Fatimah A Almulhim, M Nagy, Ali T Hammad, A H Mansi, Getachew Tekle Mekiso

Sci Rep· July 2025

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New robust two-parameter estimator for overcoming outliers and multicollinearity in Poisson regression model.
Hebatalla H Mohammad, Ali T Hammad, Abeer A El-Helbawy, Zakiah I Kalantan, Alexis Habineza

Sci Rep· July 2025

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A new Liu-type estimator in a mixed Poisson regression model.
Ohud A Alqasem, Ali T Hammad, M M Abd El-Raouf, Abdirashid M Yousuf, Ahmed M Gemeay

Sci Rep· May 2025

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