Results 41 to 50 of about 819,272 (292)

Comparison of regression-based and machine learning techniques to explain alpha diversity of fish communities in streams of central and eastern India

Ecological Indicators, 2021
Over the past several decades, ecologists have been striving to develop models that accurately describe species-habitat relationships across ecological communities.
Rubina Mondal, Anuradha Bhat
doaj   +1 more source

Minimization of Akaike's information criterion in linear regression analysis via mixed integer nonlinear program [PDF]

Optim. Methods Softw., 2016
Akaike's information criterion (AIC) is a measure of evaluating statistical models for a given data set. We can determine the best statistical model for a particular data set by finding the model with the smallest AIC value. Since there are exponentially
K. Kimura, Hayato Waki
semanticscholar   +1 more source

Critical evaluation of linear regression models for cell-subtype specific methylation signal from mixed blood cell DNA.

PLoS ONE, 2018
Epigenome-wide association studies seek to identify DNA methylation sites associated with clinical outcomes. Difference in observed methylation between specific cell-subtypes is often of interest; however, available samples often comprise a mixture of ...
Daniel W Kennedy, Nicole M White, Miles C Benton, Andrew Fox, Rodney J Scott, Lyn R Griffiths, Kerrie Mengersen, Rodney A Lea, Rodney A Lea   +8 more
doaj   +1 more source

Bayesian multimodel inference for geostatistical regression models. [PDF]

PLoS ONE, 2011
The problem of simultaneous covariate selection and parameter inference for spatial regression models is considered. Previous research has shown that failure to take spatial correlation into account can influence the outcome of standard model selection ...
Devin S Johnson, Jennifer A Hoeting
doaj   +1 more source

Statistical primer: an introduction to the application of linear mixed-effects models in cardiothoracic surgery outcomes research—a case study using homograft pulmonary valve replacement data

European Journal of Cardio-Thoracic Surgery, 2022
Summary OBJECTIVES The emergence of big cardio-thoracic surgery datasets that include not only short-term and long-term discrete outcomes but also repeated measurements over time offers the opportunity to apply more advanced modelling of outcomes.
Xu Wang, E. Andrinopoulou, K. Veen, A. Bogers, J. Takkenberg   +4 more
semanticscholar   +1 more source

Methods for estimation of genetic parameters in soybeans: an alternative to adjust residual variability

Acta Scientiarum. Agronomy, 2022
Selection practices are maximized when plant breeders have the availability of consolidated parameters, which will guide direct and indirect selection methods.
Ivan Ricardo Carvalho, Jose Antônio Gonzalez da Silva, Natã Balssan Moura, Luiz Leonardo Ferreira, Francine Lautenchleger, Velci Queiróz de Souza   +5 more
doaj   +1 more source

Variational Bayesian EM Algorithm for Quantile Regression in Linear Mixed Effects Models

Mathematics
This paper extends the normal-beta prime (NBP) prior to Bayesian quantile regression in linear mixed effects models and conducts Bayesian variable selection for the fixed effects of the model.
Weixian Wang, Maozai Tian
doaj   +1 more source

A comparison of multiple imputation methods for missing data in longitudinal studies

BMC Medical Research Methodology, 2018
Background Multiple imputation (MI) is now widely used to handle missing data in longitudinal studies. Several MI techniques have been proposed to impute incomplete longitudinal covariates, including standard fully conditional specification (FCS-Standard)
Md Hamidul Huque, John B. Carlin, Julie A. Simpson, Katherine J. Lee   +3 more
doaj   +1 more source

A mixed-effects model for growth curves analysis in a two-way crossed classification layout

Revista de Matemática: Teoría y Aplicaciones, 2009
We propose a mixed-effects linear model for analyzing growth curves data obtained using a two-way classification experiment. The model combines an unconstrained means model and a regression model on the time, in which the coefficients are considered ...
Mario Miguel Ojeda, Hardeo Sahai
doaj   +1 more source

Psychosocial Functioning After Pediatric Bone Sarcoma: Generic and Survivor‐Specific Outcomes in Adolescent and Young Adult Patients

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric bone sarcoma patients and survivors may experience psychosocial challenges related to childhood cancer after their intensive, body‐altering treatment. This cross‐sectional study aimed to evaluate generic and survivor‐specific psychosocial outcomes in a national cohort of pediatric bone sarcoma patients and survivors, and ...
Hinke van der Hoek, Heleen Maurice‐Stam, Laura R. Beek, Jennifer van Dijk, Marjolein E. M. Langemeijer, Relinde W. Slooff‐Lentink, Alied M. van der Aa‐van Delden, Anne Westerweel, Marloes van Gorp, Hendrik W. B. Schreuder, Lianne M. Haveman, W. Peter Bekkering, Leonie G. Tigelaar, Johannes H. M. Merks, Martha A. Grootenhuis   +14 more
wiley   +1 more source