Analysis of discrete data by Conway–Maxwell Poisson distribution

RC Gupta, SZ Sim, SH Ong - AStA Advances in Statistical Analysis, 2014 - Springer
In this paper, we further study the Conway–Maxwell Poisson distribution having one more
parameter than the Poisson distribution and compare it with the Poisson distribution with …

Minimum distance estimators for count data based on the probability generating function with applications

MD Jimenez-Gamero, A Batsidis - Metrika, 2017 - Springer
This paper studies properties of parameter estimators obtained by minimizing a distance
between the empirical probability generating function and the probability generating function …

[HTML][HTML] A class of tests for the two-sample problem for count data

MV Alba-Fernández, A Batsidis… - … of Computational and …, 2017 - Elsevier
A class of tests for the two-sample problem for count data whose test statistic is an L 2-norm
of the difference between the empirical probability generating functions associated with …

[HTML][HTML] Parameter estimation by Hellinger type distance for multivariate distributions based upon probability generating functions

CM Ng, SH Ong, HM Srivastava - Applied Mathematical Modelling, 2013 - Elsevier
Maximum likelihood (ML) estimation is a popular method for parameter estimation when
modeling discrete or count observations but unfortunately it may be sensitive to outliers …

Goodness-of-fit test for count distributions with finite second moment

A Di Noia, L Barabesi, M Marcheselli… - Journal of …, 2023 - Taylor & Francis
A goodness-of-fit test for one-parameter count distributions with finite second moment is
proposed. The test statistic is derived from the L 1-distance of a function of the probability …

A bivariate generalization of the noncentral negative binomial distribution

SH Ong, CM Ng - Communications in Statistics-Simulation and …, 2013 - Taylor & Francis
This article proposes a bivariate generalization of the noncentral negative binomial
distribution which arises as a model in photon and neural counting. This bivariate …

[HTML][HTML] A Family of Finite Mixture Distributions for Modelling Dispersion in Count Data

SH Ong, SZ Sim, S Liu, HM Srivastava - Stats, 2023 - mdpi.com
This paper considers the construction of a family of discrete distributions with the flexibility to
cater for under-, equi-and over-dispersion in count data using a finite mixture model based …

Alternating minimization algorithm with a probability generating function-based distance measure

R Rajakrishnan, SH Ong, CM Ng - Journal of Engineering Mathematics, 2024 - Springer
Abstract The Expectation Maximization (EM) algorithm, a popular method for maximum
likelihood estimation of parameters, requires a complete data space and construction of a …

A bivariate distribution with convolution of binomials as marginals

SH Ong, SZ Sim - Communications in Statistics-Simulation and …, 2023 - Taylor & Francis
The convolution of two binomial random variables has appeared in various settings such as
a model in machine maintenance and as a Markov chain model. This article presents a …

Parameter estimation for strict arcsine distribution

YC Low, YN Phang, WC Khoo… - … in Statistics-Simulation and …, 2024 - Taylor & Francis
The two-parameter strict arcsine distribution as a member of the natural exponential family
with cubic variance function has been shown to be a viable candidate for statistical analysis …