Results 1 to 10 of about 79,690 (134)

Early warning and predicting of COVID-19 using zero-inflated negative binomial regression model and negative binomial regression model [PDF]

open access: yesBMC Infectious Diseases
Background It is difficult to detect the outbreak of emergency infectious disease based on the exiting surveillance system. Here we investigate the utility of the Baidu Search Index, an indicator of how large of a keyword is in Baidu’s search volume, in ...
Wanwan Zhou   +10 more
doaj   +4 more sources

A Novel Phylogenetic Negative Binomial Regression Model for Count-Dependent Variables [PDF]

open access: yesBiology, 2023
Regression models are extensively used to explore the relationship between a dependent variable and its covariates. These models work well when the dependent variable is categorical and the data are supposedly independent, as is the case with generalized
Dwueng-Chwuan Jhwueng, Chi-Yu Wu
doaj   +2 more sources

Improved estimation in negative binomial regression. [PDF]

open access: yesStat Med, 2022
AbstractNegative binomial regression is commonly employed to analyze overdispersed count data. With small to moderate sample sizes, the maximum likelihood estimator of the dispersion parameter may be subject to a significant bias, that in turn affects inference on mean parameters.
Kenne Pagui EC, Salvan A, Sartori N.
europepmc   +4 more sources

Double Generalized Beta-Binomial and Negative Binomial Regression Models

open access: yesRevista Colombiana de Estadística, 2017
Overdispersion is a common phenomenon in count datasets, that can greatly affect inferences about the model. In this paper develop three joint mean and dispersion regression models in order to fit overdispersed data.
EDILBERTO CEPEDA-CUERVO   +1 more
doaj   +3 more sources

Driving Risk Assessment Using Near-Miss Events Based on Panel Poisson Regression and Panel Negative Binomial Regression [PDF]

open access: yesEntropy, 2021
This study proposes a method for identifying and evaluating driving risk as a first step towards calculating premiums in the newly emerging context of usage-based insurance.
Shuai Sun   +3 more
doaj   +2 more sources

NIMBus: a negative binomial regression based Integrative Method for mutation Burden Analysis [PDF]

open access: yesBMC Bioinformatics, 2020
Background Identifying frequently mutated regions is a key approach to discover DNA elements influencing cancer progression. However, it is challenging to identify these burdened regions due to mutation rate heterogeneity across the genome and across ...
Jing Zhang   +6 more
doaj   +2 more sources

New two parameter hybrid estimator for zero inflated negative binomial regression models [PDF]

open access: yesScientific Reports
The zero-inflated negative binomial regression (ZINBR) model is used for modeling count data that exhibit both overdispersion and zero-inflated counts. However, a persistent challenge in the efficient estimation of parameters within ZINBR models is the ...
Fatimah A. Almulhim   +5 more
doaj   +2 more sources

Odds ratios from logistic, geometric, Poisson, and negative binomial regression models [PDF]

open access: yesBMC Medical Research Methodology, 2018
Background The odds ratio (OR) is used as an important metric of comparison of two or more groups in many biomedical applications when the data measure the presence or absence of an event or represent the frequency of its occurrence.
Christopher J. Sroka   +1 more
doaj   +2 more sources

Lognormal and Gamma Mixed Negative Binomial Regression. [PDF]

open access: yesProc Int Conf Mach Learn, 2012
In regression analysis of counts, a lack of simple and efficient algorithms for posterior computation has made Bayesian approaches appear unattractive and thus underdeveloped. We propose a lognormal and gamma mixed negative binomial (NB) regression model for counts, and present efficient closed-form Bayesian inference; unlike conventional Poisson ...
Zhou M, Li L, Dunson D, Carin L.
europepmc   +4 more sources

Normalization and variance stabilization of single-cell RNA-seq data using regularized negative binomial regression [PDF]

open access: yesGenome Biology, 2019
Single-cell RNA-seq (scRNA-seq) data exhibits significant cell-to-cell variation due to technical factors, including the number of molecules detected in each cell, which can confound biological heterogeneity with technical effects.
Christoph Hafemeister, Rahul Satija
doaj   +2 more sources

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