Results 31 to 40 of about 14,099,422 (313)

On The Poisson Follower Model

open access: yesStochastic Models
We introduce a stochastic geometry dynamics inspired by opinion dynamics that captures the essence of modern asymmetric social networks with leaders and followers. Points in the Euclidean space represent opinions, and the leader of an agent is the one with the closest opinion.
Dragovic, Natasa, Baccelli, Francois
openaire   +2 more sources

Models for Rates with Poisson Errors

open access: yesBiometrics, 1984
In a recent paper, Frome (1983) described the fitting of models with Poisson errors and data in the form of rates. Some of the models considered are log-linear and hence can be fitted simply by GLIM or by any package that handles log-linear models; some are not and require either special treatment in GLIM or the use of a program that handles iterative ...
J. A. Nelder, E. L. Frome
openaire   +1 more source

Zero-inflated generalized Poisson models with regression effects on the mean, dispersion and zero-inflation level applied to patent outsourcing rates [PDF]

open access: yes, 2006
This paper focuses on an extension of zero-inflated generalized Poisson (ZIGP) regression models for count data. We discuss generalized Poisson (GP) models where dispersion is modelled by an additional model parameter.
Erhardt, Vinzenz   +2 more
core   +1 more source

D-optimal designs for Poisson regression models [PDF]

open access: yes, 2008
We consider the problem of finding an optimal design under a Poisson regression model with a log link, any number of independent variables and an additive linear predictor.
Woods, D.C.   +3 more
core   +1 more source

Bayesian inference for Poisson and multinomial log-linear models [PDF]

open access: yes, 2009
Categorical data frequently arise in applications in the social sciences. In such applications,the class of log-linear models, based on either a Poisson or (product) multinomial response distribution, is a flexible model class for inference and ...
Forster, Jonathan J.
core   +2 more sources

Modeling stand mortality using Poisson mixture models with mixed-effects

open access: yesiForest - Biogeosciences and Forestry, 2015
Stand mortality models play an important role in simulating stand dynamic processes. Periodic stand mortality data from permanent plots tend to be dispersed, and frequently contain an excess of zero counts. Such data have commonly been analyzed using the
Zhang X-Q, Lei Y-C, Liu X-Z
doaj   +1 more source

A spatial mixed Poisson framework for combination of excess-of-loss and proportional reinsurance contracts [PDF]

open access: yes, 2009
In this paper a purely theoretical reinsurance model is presented, where the reinsurance contract is assumed to be simultaneously of an excess-of-loss and of a proportional type. The stochastic structure of the set of pairs (claim’s arrival time, claim’s
Cerqueti, R   +9 more
core   +1 more source

Bayesian modeling of the effect of vaccination and the delta and omicron variants on the COVID-19 epidemic in Burkina Faso using poisson log-linear autoregressive model

open access: yesFrontiers in Public Health
IntroductionSince its emergence in Burkina Faso in March 2020, the COVID-19 epidemic has undergone several shifts in its trajectory. These fluctuations have been influenced by government control measures, socio-economic dynamics, and biological mutations
Serge M. A. Somda   +5 more
doaj   +1 more source

The sparse Poisson means model

open access: yesElectronic Journal of Statistics, 2015
We consider the problem of detecting a sparse Poisson mixture. Our results parallel those for the detection of a sparse normal mixture, pioneered by Ingster (1997) and Donoho and Jin (2004), when the Poisson means are larger than logarithmic in the sample size.
Arias-Castro, Ery, Wang, Meng
openaire   +4 more sources

Emerging experimental and computational methods for studying redox‐regulated structural transitions

open access: yesFEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass   +2 more
wiley   +1 more source

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