Results 11 to 20 of about 23,119,930 (306)

Conditionally conjugate mean-field variational Bayes for logistic models [PDF]

open access: yesStatistical Science, 2018
Variational Bayes (VB) is a common strategy for approximate Bayesian inference, but simple methods are only available for specific classes of models including, in particular, representations having conditionally conjugate constructions within an ...
Durante, Daniele, Rigon, Tommaso
core   +2 more sources

Analysis of some generalized ABC – Fractional logistic models [PDF]

open access: goldAlexandria Engineering Journal, 2020
Thabet Abdeljawad   +3 more
openalex   +2 more sources

The harm of class imbalance corrections for risk prediction models: illustration and simulation using logistic regression [PDF]

open access: yesJ. Am. Medical Informatics Assoc., 2022
Objective Methods to correct class imbalance (imbalance between the frequency of outcome events and nonevents) are receiving increasing interest for developing prediction models.
Ruben van den Goorbergh   +3 more
semanticscholar   +1 more source

The asymptotic distribution of the MLE in high-dimensional logistic models: Arbitrary covariance [PDF]

open access: yesBernoulli, 2020
We study the distribution of the maximum likelihood estimate (MLE) in high-dimensional logistic models, extending the recent results from Sur (2019) to the case where the Gaussian covariates may have an arbitrary covariance structure.
Qian Zhao, P. Sur, E. Candès
semanticscholar   +1 more source

LOGISTIC MODELS OF FRACTAL DIMENSION GROWTH OF URBAN MORPHOLOGY [PDF]

open access: yesFractals, 2018
Urban form can be described with fractal dimension, which is a measurement of space filling of urban evolution. However, how to model and understand the fractal dimension growth of urban morphology are still pending questions.
Yanguang Chen
semanticscholar   +2 more sources

On the conformable fractional logistic models

open access: yesMathematical methods in the applied sciences, 2020
In this paper, we use a conformable fractional derivative GTα , with kernel T(t,α)=e(α−1)t , in order to study the fractional differential equation associated to a logistic growth model. As a practical application, we estimate the order of the derivative
R. Abreu‐Blaya   +5 more
semanticscholar   +1 more source

Factors Associated with Cesarean Section in Tehran, Iran using Multilevel Logistic Regression Model [PDF]

open access: yesOsong Public Health and Research Perspectives, 2018
Objectives Over the past few decades, the prevalence of cesarean sections (CS) have risen dramatically worldwide, particularly in Iran. The aim of this study was to determine the prevalence of CS in Tehran, and to examine the associated risk factors ...
Payam Amini   +4 more
doaj   +1 more source

Logistic Curve Models of CO2 Accumulation

open access: yesFindings, 2020
This article explores the use of logistic-shaped diffusion curves (S-Curves) to predict the accumulation of atmospheric CO2. The research question here is whether forecasts using logistic curves are stable, that is, do they predict consistently over ...
David Levinson
doaj   +1 more source

Binary Logistic Regression Modeling of Voice Impairment and Voice Assessment in Iranian Patients with Nonlaryngeal Head-and-Neck Cancers after Chemoradiation Therapy: Objective and Subjective Voice Evaluation

open access: yesJournal of Medical Signals and Sensors, 2023
Background: Laryngeal damages after chemoradiation therapy (RT) in nonlaryngeal head-and-neck cancers (HNCs) can cause voice disorders and finally reduce the patient's quality of life (QOL).
Sakineh Bagherzadeh   +5 more
doaj   +1 more source

Comparative simulation study for model adequancy with binary response variable under multicollinearity – nonparametric approaches

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2017
Regression models used to explore the importance of several explanatory variables in estimation, classification and analytical tools play an efficient role for many data analysis.
Betül Kan Kılınç, Mustafa Çavuş
doaj   +1 more source

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