Results 1 to 10 of about 12,232,356 (294)

Study of Bayesian variable selection method on mixed linear regression models.

open access: yesPLoS ONE, 2023
Variable selection has always been an important issue in statistics. When a linear regression model is used to fit data, selecting appropriate explanatory variables that strongly impact the response variables has a significant effect on the model ...
Yong Li, Hefei Liu, Rubing Li
doaj   +3 more sources

Linear Quantile Mixed Models: The lqmm Package for Laplace Quantile Regression [PDF]

open access: yesJournal of Statistical Software, 2014
Inference in quantile analysis has received considerable attention in the recent years. Linear quantile mixed models (Geraci and Bottai 2014) represent a ?exible statistical tool to analyze data from sampling designs such as multilevel, spatial, panel or
Marco Geraci
doaj   +4 more sources

Convergence of Parameter Estimates for Regularized Mixed Linear Regression Models [PDF]

open access: yes2019 IEEE 58th Conference on Decision and Control (CDC), 2019
We consider {\em Mixed Linear Regression (MLR)}, where training data have been generated from a mixture of distinct linear models (or clusters) and we seek to identify the corresponding coefficient vectors. We introduce a {\em Mixed Integer Programming (MIP)} formulation for MLR subject to regularization constraints on the coefficient vectors.
Taiyao Wang, Ioannis Paschalidis
exaly   +5 more sources

Body temperature correlates with depressive symptom severity: analysis and extension of prior findings in observational cohorts with more than 19,000 participants [PDF]

open access: yesFrontiers in Psychiatry
ObjectivePrior studies have reported that higher body temperature correlates with greater depressive symptoms, but did not adjust for potential confounders.MethodsWe used linear regression models and linear mixed models to assess associations between ...
Severine Soltani   +10 more
doaj   +2 more sources

Application of Linear Mixed-Effects Models in Human Neuroscience Research: A Comparison with Pearson Correlation in Two Auditory Electrophysiology Studies

open access: yesBrain Sciences, 2017
Neurophysiological studies are often designed to examine relationships between measures from different testing conditions, time points, or analysis techniques within the same group of participants.
Tess K. Koerner, Yang Zhang
doaj   +3 more sources

Non-linear and mixed regression models in predicting sustainable concrete strength

open access: yesConstruction and Building Materials, 2018
Abstract Most previous research adopting the regression analysis to capture the relationship between concrete properties and mixture-design-related variables was based on the linear approach with limited accuracy. This study applies non-linear and mixed regression analyses to model properties of environmentally friendly concrete based on a ...
Ruoyu Jin, Alfred B O Soboyejo
exaly   +3 more sources

On the mixed Kibria–Lukman estimator for the linear regression model

open access: yesScientific Reports, 2022
AbstractThis paper considers a linear regression model with stochastic restrictions,we propose a new mixed Kibria–Lukman estimator by combining the mixed estimator and the Kibria–Lukman estimator.This new estimator is a general estimation, including OLS estimator, mixed estimator and Kibria–Lukman estimator as special cases. In addition, we discuss the
Hongmei Chen, Jibo Wu
openaire   +3 more sources

Statistical analysis of comparative tumor growth repeated measures experiments in the ovarian cancer patient derived xenograft (PDX) setting

open access: yesScientific Reports, 2021
Repeated measures studies are frequently performed in patient-derived xenograft (PDX) models to evaluate drug activity or compare effectiveness of cancer treatment regimens. Linear mixed effects regression models were used to perform statistical modeling
Ann L. Oberg   +13 more
doaj   +1 more source

Using Airborne Lidar, Multispectral Imagery, and Field Inventory Data to Estimate Basal Area, Volume, and Aboveground Biomass in Heterogeneous Mixed Species Forests: A Case Study in Southern Alabama

open access: yesRemote Sensing, 2022
Airborne light detection and ranging (lidar) has proven to be a useful data source for estimating forest inventory metrics such as basal area (BA), volume, and aboveground biomass (AGB) and for producing wall-to-wall maps for validation of satellite ...
Schyler Brown   +2 more
doaj   +1 more source

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