Results 1 to 10 of about 1,534,752 (139)

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

Regression models of Pearson correlation coefficient

open access: yesStatistical Theory and Related Fields, 2023
We propose two simple regression models of Pearson correlation coefficient of two normal responses or binary responses to assess the effect of covariates of interest. Likelihood-based inference is established to estimate the regression coefficients, upon
Abdisa G. Dufera, Tiantian Liu, Jin Xu
doaj   +1 more source

Estimation of Winter Wheat Tiller Number Based on Optimization of Gradient Vegetation Characteristics

open access: yesRemote Sensing, 2022
Tiller are an important biological characteristic of wheat, a primary food crop. Accurate estimation of tiller number can help monitor wheat growth and is important in forecasting wheat yield.
Fei Wu   +6 more
doaj   +1 more source

Boosting Functional Regression Models with FDboost

open access: yesJournal of Statistical Software, 2020
The R add-on package FDboost is a flexible toolbox for the estimation of functional regression models by model-based boosting. It provides the possibility to fit regression models for scalar and functional response with effects of scalar as well as ...
Sarah Brockhaus   +2 more
doaj   +1 more source

Spline Semiparametric Regression Models

open access: yesJournal of Kufa for Mathematics and Computer, 2015
In this paper, we study semiparametric regression models with spline smoothing, and determining the numbers of knots and their locations by using some statistical criteria, a simulation model has been performed.
Ameera Jaber Mohaisen   +1 more
doaj   +1 more source

Logistic regression models

open access: yesAllergologia et Immunopathologia, 2011
In the health sciences it is quite common to carry out studies designed to determine the influence of one or more variables upon a given response variable. When this response variable is numerical, simple or multiple regression techniques are used, depending on the case.
S, Domínguez-Almendros   +2 more
openaire   +2 more sources

Bimodal Regression Model

open access: yesRevista Colombiana de Estadística, 2017
Regression analysis is a technique widely used in different areas ofhuman knowledge, with distinct distributions for the error term. Itis the case, however, that regression models with bimodal responsesor, equivalently, with the error term following a bimodal distribution are notcommon in the literature, perhaps due to the lack of simple to dealwith ...
MARTÍNEZ-FLÓREZ, GUILLERMO   +2 more
openaire   +5 more sources

Predicting the Response of Laminated Composite Beams: A Comparison of Machine Learning Algorithms

open access: yesFrontiers in Built Environment, 2022
A comparative study of machine learning regression algorithms for predicting the deflection of laminated composite beams is presented herein. The problem of the scarcity of experimental data is solved by ample numerically prepared data, which are ...
George C. Tsiatas   +2 more
doaj   +1 more source

A Crash Data Analysis through a Comparative Application of Regression and Neural Network Models

open access: yesSafety, 2023
One way to reduce road crashes is to determine the main influential factors among a long list that are attributable to driver behavior, environmental conditions, vehicle features, road type, and traffic signs. Hence, selecting the best modelling tool for
Lorenzo Mussone   +1 more
doaj   +1 more source

Asymmetric Regression Models Bernoulli/LogProportional-Hazard Distribution

open access: yesRevista Colombiana de Estadística, 2014
In this paper we introduce a kind of asymmetric distribution for non-negative data called log-proportional hazard distribution (LPHF). This new distribution is used to study an asymmetrical regression model for data with limited responses (censored ...
GUILLERMO MARTÍNEZ-FLÓREZ   +1 more
doaj   +1 more source

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