This article analyzes the students' motivation towards science learning in two MENA
countries, Tunisia and the United Arab Emirates (UAE), based on the PISA data in 2015. We …

The zero‐inflated Poisson (ZIP) distribution is an extension of the ordinary Poisson
distribution and is used to model count data with an excessive number of zeros. In ZIP …

The zero-inflated Poisson (ZIP) model is often postulated for count data that include
excessive zeros. This ZIP distribution can be regarded as the mixture of two distributions …

Zero‐inflated Poisson (ZIP) model is very useful in high‐yield processes where an excessive
number of zero observations exist. This model can be viewed as an extension of the …

Finding statistical models for citation count data is important for those seeking to understand
the citing process or when using regression to identify factors that associate with citation …

In this article, we propose a class of zero-modified Poisson mixture models as an alternative
to model overdispersed count data exhibiting inflation or deflation of zeros. A relevant …

On weighted Poisson distributions and processes, with associated inference and
applications Page 1 On weighted Poisson distributions and processes, with associated …

Many disciplines produce count data that contain many zeros. Zero inflation count models
such as ZIP and ZIB have been widely used to model count data, in particular, to model the …

Sparseness in contingency table often occurs in practice and detecting outliers in such
sparse contingency table is an interesting statistical problem and poses additional difficulties …

L'excès de zéros dans les données de comptage est une situation qui survient dans de
nombreux domaines (épidémiologie, économie de la santé...). Les modèles de régression à …