Universiti Teknologi Malaysia Institutional Repository

Zero-inflated poisson models with censored data

Adnan, Robiah and Saffari, Seyed Ehsan (2010) Zero-inflated poisson models with censored data. In: Regional Annual Fundamental Science Symposium 2010 (RAFSS 2010), 8-9 June 2010, Grand Seasons Hotel, Kuala Lumpur.

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Official URL: https://science.utm.my/robiah/files/2015/03/Zero-I...


A Poisson model typically is assumed for count data. However Poisson model is not suitable for data because of too many zeros. Furt hermore, the response variable in such cases is censored for some values. In this pa per, a zero-inflated Poisson regression model is introduced on censored data. In this mod el, we consider a response variable and one or more than one explanatory variables. The estimation of regression parameters using the maximum likelihood method is discusse d and the goodness-of-fit for the regression model is examined. We study the effects of r ight censoring in terms of parameters estimation and their standard errors via simu lation and an example.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Zero-Inflated Poisson regression; Censored data ; Maximum l ikelihood method; Simulation
Subjects:Q Science
ID Code:24407
Deposited By: Mrs Liza Porijo
Deposited On:19 Sep 2012 03:07
Last Modified:12 Sep 2017 01:38

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