Results 41 to 50 of about 97,649 (287)

Mean-parametrized Conway-Maxwell-Poisson regression models for dispersed counts

open access: yes, 2017
Conway-Maxwell-Poisson (CMP) distributions are flexible generalizations of the Poisson distribution for modelling overdispersed or underdispersed counts.
Huang, Alan
core   +1 more source

Modelling count data with overdispersion and spatial effects [PDF]

open access: yes, 2005
In this paper we consider regression models for count data allowing for overdispersion in a Bayesian framework. We account for unobserved heterogeneity in the data in two ways. On the one hand, we consider more flexible models than a common Poisson model
Czado, Claudia, Gschlößl, Susanne
core   +4 more sources

PENERAPAN REGRESI POISSON UNTUK MENGETAHUI FAKTOR-FAKTOR YANG MEMENGARUHI JUMLAH SISWA SMA/SMK YANG TIDAK LULUS UN DI BALI

open access: yesE-Jurnal Matematika, 2012
This study aims to determine factors that influence the number of high/vocational school students that do not pass the examination in Bali in 2011. Factors that used in this study are the external factors include the proportion of  public high/vocational
KOMANG AYU YULIANINGSIH   +2 more
doaj   +1 more source

A Flexible Mixed Model for Clustered Count Data

open access: yesStats, 2022
Clustered count data are commonly modeled using Poisson regression with random effects to account for the correlation induced by clustering. The Poisson mixed model allows for overdispersion via the nature of the within-cluster correlation, however ...
Darcy Steeg Morris, Kimberly F. Sellers
doaj   +1 more source

Modified Kibria-Lukman (MKL) estimator for the Poisson Regression Model: application and simulation [version 2; peer review: 2 approved, 1 approved with reservations]

open access: yesF1000Research, 2021
Background: Multicollinearity greatly affects the Maximum Likelihood Estimator (MLE) efficiency in both the linear regression model and the generalized linear model. Alternative estimators to the MLE include the ridge estimator, the Liu estimator and the
Olukayode Adebimpe   +4 more
doaj   +1 more source

Generalized structured additive regression based on Bayesian P-splines [PDF]

open access: yes, 2003
Generalized additive models (GAM) for modelling nonlinear effects of continuous covariates are now well established tools for the applied statistician. In this paper we develop Bayesian GAM's and extensions to generalized structured additive regression ...
Brezger, Andreas, Lang, S.
core   +3 more sources

Poisson regression charts for the monitoring of surveillance time series [PDF]

open access: yes, 2006
This paper presents a Poisson control chart for monitoring time series of counts typically arising in the surveillance of infectious diseases. The in-control mean is assumed to be time-varying and linear on the log-scale with intercept and seasonal ...
Höhle, Michael
core   +2 more sources

Generalized Poisson Regression: An Alternative for Risk Classification

open access: yesJurnal Teknologi, 2012
Semenjak beberapa tahun yang lepas, model regresi Poisson telah diguna secara meluas untuk pengkelasan risiko. Narnun, model regresi Poisson mengandaikan bahawa min dan varians pemboleh ubah bersandar adalah sama, sedangkan secara praktis, masalah lebih–serakan mungkin wujud di dalam data, yakni, situasi di mana varians adalah lebih besar ...
Noriszura Ismail, Abdul Aziz Jemain
openaire   +1 more source

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri   +7 more
wiley   +1 more source

COVID-19 transmission in Africa: estimating the role of meteorological factors

open access: yesHeliyon, 2022
Climate variables play a critical role in COVID-19’s spread. Therefore, this research aims to analyze the effect of average temperature and relative humidity on the propagation of COVID-19 in Africa's first four affected countries (South Africa, Morocco,
Montasir Ahmed Osman
doaj   +1 more source

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