Results 11 to 20 of about 291,054 (244)

Fitting additive Poisson models [PDF]

open access: yesEpidemiologic Perspectives & Innovations, 2010
AbstractThis paper describes how to fit an additive Poisson model using standard software. It is illustrated with SAS code, but can be similarly used for other software packages.
Boshuizen, H.C., Feskens, E.J.M.
openaire   +3 more sources

Evaluation of the effectiveness of the use of additive wax printing technologies for obtaining wax models for lost-wax casting in custom production based on simulation modeling [PDF]

open access: yesE3S Web of Conferences, 2023
The article discusses the technology of casting according to the smelted models, in particular, the processes of manufacturing wax models. We considered methods of manufacturing elements of model blocks with the use of molds and with the help of additive
Dolgov Nikita   +2 more
doaj   +1 more source

Negative Binomial Additive Models [PDF]

open access: yesBiometrics, 2000
Summary.The generalized additive model is extended to handle negative binomial responses. The extension is complicated by the fact that the negative binomial distribution has two parameters and is not in the exponential family. The methodology is applied to data involving DNA adduct counts and smoking variables among ex‐smokers with lung cancer. A more
Thurston, Sally W.   +2 more
openaire   +3 more sources

Reluctant Generalised Additive Modelling

open access: yesInternational Statistical Review, 2020
SummarySparse generalised additive models (GAMs) are an extension of sparse generalised linear models that allow a model's prediction to vary non‐linearly with an input variable. This enables the data analyst build more accurate models, especially when the linearity assumption is known to be a poor approximation of reality.
J. Kenneth Tay, Robert Tibshirani
openaire   +4 more sources

Semiparametric Additive Beta Regression Models

open access: yesRevstat Statistical Journal, 2021
In this paper, we study a semiparametric additive beta regression model using a parameterization based on the mean and a dispersion parameter. This model is useful for situations where the response variable is continuous and restricted to the unit ...
Germán Ibacache-Pulgar   +2 more
doaj   +1 more source

Changes in productivity in the virgin olive oil sector: An application to Protected Designations of Origin in Spain

open access: yesSpanish Journal of Agricultural Research, 2016
Virgin olive oil is a key ingredient of the renowned Mediterranean diet. In this context, the main objective of this study was to estimate and decompose productivity change for Protected Designations of Origin (PDOs) in the Spanish virgin olive oil ...
Juan Aparicio   +3 more
doaj   +1 more source

On concurvity in nonlinear and nonparametric regression models

open access: yesStatistica, 2014
When data are affected by multicollinearity in the linear regression framework, then concurvity will be present in fitting a generalized additive model (GAM). The term concurvity describes nonlinear dependencies among the predictor variables.
Sonia Amodio   +2 more
doaj   +1 more source

Semiparametric Integrated and Additive Spatio-Temporal Single-Index Models

open access: yesMathematics, 2023
In this paper, we introduce two semiparametric single-index models for spatially and temporally correlated data. Our first model has spatially and temporally correlated random effects that are additive to the nonparametric function, which we refer to as ...
Hamdy F. F. Mahmoud, Inyoung Kim
doaj   +1 more source

Inheritance of the birth weights in crosses between Istrian, Awassi, East-Friesian and Travnik Pramenka sheep in Croatia: a case study [PDF]

open access: yesJournal of Central European Agriculture, 2021
The purpose of the study was to estimate the influence of the additive and non-additive genetic effects on the birth weight, using two different crossbreed models. Data on 1176 birth weights were collected. The animals were crosses, with different ratios
Ivan Pocrnic, Alen Dzidic
doaj   +1 more source

Additive Functional Cox Model

open access: yesJournal of Computational and Graphical Statistics, 2021
We propose the Additive Functional Cox Model to flexibly quantify the association between functional covariates and time to event data. The model extends the linear functional proportional hazards model by allowing the association between the functional covariate and log hazard to vary non-linearly in both the functional domain and the value of the ...
Erjia Cui   +2 more
openaire   +3 more sources

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