Results 21 to 30 of about 1,354,633 (198)

Variable Selection and Model Choice in Geoadditive Regression Models [PDF]

open access: yes, 2007
Model choice and variable selection are issues of major concern in practical regression analyses. We propose a boosting procedure that facilitates both tasks in a class of complex geoadditive regression models comprising spatial effects, nonparametric ...
Kneib, Thomas   +2 more
core   +1 more source

A-DVM: A Self-Adaptive Variable Matrix Decision Variable Selection Scheme for Multimodal Problems

open access: yesEntropy, 2020
Artificial Bee Colony (ABC) is a Swarm Intelligence optimization algorithm well known for its versatility. The selection of decision variables to update is purely stochastic, incurring several issues to the local search capability of the ABC.
Marco Antonio Florenzano Mollinetti   +3 more
doaj   +1 more source

Multinomial Logit Models with Implicit Variable Selection [PDF]

open access: yes, 2010
Multinomial logit models which are most commonly used for the modeling of unordered multi-category responses are typically restricted to the use of few predictors. In the high-dimensional case maximum likelihood estimates frequently do not exist. In this
Tutz, Gerhard, Zahid, Faisal Maqbool
core   +1 more source

Application of variable selection and dimension reduction on predictors of MSE’s development

open access: yesJournal of Big Data, 2019
Nature create variables using its character component, and variables are sharing characters from a vary small to relatively large scale. This results, variables to have from a vary different to a more similar character, and leads to have a relation ship.
Habtamu Tilaye Wubetie
doaj   +1 more source

Variable selection in multivariate multiple regression.

open access: yesPLoS ONE, 2020
IntroductionIn many practical situations, we are interested in the effect of covariates on correlated multiple responses. In this paper, we focus on estimation and variable selection in multi-response multiple regression models.
Asokan Mulayath Variyath, Anita Brobbey
doaj   +1 more source

Identifying Plant Pentatricopeptide Repeat Proteins Using a Variable Selection Method

open access: yesFrontiers in Plant Science, 2021
Motivation: Pentatricopeptide repeat (PPR), which is a triangular pentapeptide repeat domain, plays an important role in plant growth. Features extracted from sequences are applicable to PPR protein identification using certain classification methods ...
Xudong Zhao   +5 more
doaj   +1 more source

Group Variable Selection Methods with Quantile Regression: A Simulation Study. [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية
In many cases, covariates have a grouping structure that can be used in the analysis to identify important groups and the significant members of those groups. This paper reviews some group variable selection methods that utilize quantile regression.
Hussein Hashem
doaj   +1 more source

Variable Selection Bias in Classification Trees Based on Imprecise Probabilities [PDF]

open access: yes, 2005
Classification trees based on imprecise probabilities provide an advancement of classical classification trees. The Gini Index is the default splitting criterion in classical classification trees, while in classification trees based on imprecise ...
Carolin Strobl, Strobl, Carolin
core   +1 more source

Spectral variable selection for estimation of soil organic carbon content using mid-infrared spectroscopy [PDF]

open access: yes, 2022
The non-destructive and rapid estimation of soil total carbon (SOC) content with mid-infrared spectroscopy (MIR, 4000–400 cm−1) will play a vital role in precision agriculture.
Tongqing Liu   +9 more
core   +1 more source

Variable Selection in Multivariable Regression Using SAS/IML

open access: yesJournal of Statistical Software, 2002
This paper introduces a SAS/IML program to select among the multivariate model candidates based on a few well-known multivariate model selection criteria. Stepwise regression and all-possible-regression are considered.
Ali A. Al-Subaihi
doaj   +3 more sources

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