Results 111 to 120 of about 1,170 (203)

Modeling and simulation of count data

open access: yes, 2014
Count data, or number of events per time interval, are discrete data arising from repeated time to event observations. Their mean count, or piecewise constant event rate, can be evaluated by discrete probability distributions from the Poisson model ...
Plan, Elodie L,, Plan, Elodie L
core   +1 more source

Stationary Underdispersed INAR(1) Models based on the Backward Approach

open access: yesRevstat Statistical Journal
Most of the stationary first-order autoregressive integer-valued (INAR(1)) models in the literature have been developed using the idea of binomial thinning. Two approaches have been adopted to establish the distributional properties of a stationary INAR(
Emad-Eldin A. A. Aly, Nadjib Bouzar
doaj   +1 more source

Supplementary Table 3

open access: yes, 2015
Results of HMD (Homogeneity in Multivariate Dispersions) tests comparing live and dead diatom assemblages in total (littoral+open waters), littoral and open waters datasets showing: ratio (premortem variation/total LD variation), the estimates of ...
Gabriela S. Hassan (3311157)
core   +1 more source

CONWAY-MAXWELL POISSON REGRESSION MODELING OF INFANT MORTALITY IN SOUTH SULAWESI

open access: yesMedia Statistika
Overdispersion is a common problem in count data that can lead to inaccurate parameter estimates in Poisson regression models. Quasi-Poisson and negative binomial regressions are often used to address overdispersion but have limitations, especially with ...
Oktaviana Oktaviana   +4 more
doaj   +1 more source

Enhancing the accuracy of modeling highly multicollinear CO2 emission data using a novel generalized Poisson Liu regression method

open access: yesAIP Advances
Count data often exhibit dispersion patterns that the standard Poisson regression model struggles to handle, particularly in cases of overdispersion or underdispersion. The generalized Poisson regression model (GPRM) provides a more flexible alternative,
Ali T. Hammad   +3 more
doaj   +1 more source

Bivariate Random Coefficient Integer-Valued Autoregressive Model Based on a ρ-Thinning Operator

open access: yesAxioms
While overdispersion is a common phenomenon in univariate count time series data, its exploration within bivariate contexts remains limited. To fill this gap, we propose a bivariate integer-valued autoregressive model.
Chang Liu, Dehui Wang
doaj   +1 more source

Between here and there: Immigrant fertility patterns in Germany [PDF]

open access: yes
This paper focuses on the role of the home country’s birth rates in shaping immigrant fertility. We use the German Socio-Economic Panel (SOEP) to study completed fertility of first generation immigrants who arrived from different countries and at ...
Kamila Cygan-Rehm
core  

Table_4_DREAMSeq: An Improved Method for Analyzing Differentially Expressed Genes in RNA-seq Data.XLSX

open access: yes, 2018
RNA sequencing (RNA-seq) has become a widely used technology for analyzing global gene-expression changes during certain biological processes. It is generally acknowledged that RNA-seq data displays equidispersion and overdispersion characteristics ...
Wenqiang Tang (6032798)   +2 more
core   +1 more source

Table_2_DREAMSeq: An Improved Method for Analyzing Differentially Expressed Genes in RNA-seq Data.XLSX

open access: yes, 2018
RNA sequencing (RNA-seq) has become a widely used technology for analyzing global gene-expression changes during certain biological processes. It is generally acknowledged that RNA-seq data displays equidispersion and overdispersion characteristics ...
Wenqiang Tang (6032798)   +2 more
core   +1 more source

Regularized estimation for the generalized Poisson regression model under multicollinearity with application to carbon dioxide emissions

open access: yesJournal of Radiation Research and Applied Sciences
The generalized Poisson regression model (GPORM) offers a flexible framework for addressing many count data challenges, notably over- and underdispersion.
Fatimah A. Almulhim   +4 more
doaj   +1 more source

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