Results 21 to 30 of about 4,368 (154)

Global Bahadur representation for nonparametric censored regression quantiles and its applications [PDF]

open access: yesEconometric Theory, 2011
This paper is concerned with the nonparametric estimation of regression quantiles of a response variable that is randomly censored. Using results on the strong uniform convergence rate of U-processes, we derive a global Bahadur representation for a class of locally weighted polynomial estimators, which is sufficiently accurate for many further ...
Efang Kong, Oliver Linton, Yingcun Xia
openaire   +3 more sources

Quantile-dependent expressivity of serum C-reactive protein concentrations in family sets [PDF]

open access: yesPeerJ, 2021
Background “Quantile-dependent expressivity” occurs when the effect size of a genetic variant depends upon whether the phenotype (e.g., C-reactive protein, CRP) is high or low relative to its distribution. We have previously shown that the heritabilities
Paul T. Williams
doaj   +2 more sources

Fuzzy Semi-Parametric Logistic Quantile Regression Model

open access: yesWasit Journal for Pure Sciences, 2023
In this paper, the fuzzy semi-parametric logistic quantile regression model was studied in the absence of special conditions in the classical regression models.
Ahmed Razzaq, Ayad H. shemaila
doaj   +1 more source

Nonparametric Functional Data Analysis for Forecasting Container Throughput: The Case of Shanghai Port

open access: yesJournal of Marine Science and Engineering, 2022
Transportation is one of the major carbon sources in China. Container throughput is one of the main influencing factors of ports’ carbon emission budget, and accurate prediction of container throughput is of great significance to the study of carbon ...
Yuye Zou, Bohan Su, Yanhui Chen
doaj   +1 more source

Quantile-dependent expressivity of plasma adiponectin concentrations may explain its sex-specific heritability, gene-environment interactions, and genotype-specific response to postprandial lipemia [PDF]

open access: yesPeerJ, 2020
Background “Quantile-dependent expressivity” occurs when the effect size of a genetic variant depends upon whether the phenotype (e.g. adiponectin) is high or low relative to its distribution.
Paul T. Williams
doaj   +2 more sources

Additive quantile mixed effects modelling with application to longitudinal CD4 count data

open access: yesScientific Reports, 2021
Quantile regression offers an invaluable tool to discern effects that would be missed by other conventional regression models, which are solely based on modeling conditional mean.
Ashenafi A. Yirga   +3 more
doaj   +1 more source

Asymmetric impacts of geopolitical risk on stock markets: A comparative analysis of the E7 and G7 equities during the Russian-Ukrainian conflict

open access: yesHeliyon, 2023
In a nonparametric quantile-on-quantile regression model, we analyze the asymmetric financial impact of the Russian-Ukrainian conflict-induced geopolitical risk (GPR) on the top-seven emerging (E7) and developed (G7) stock markets.
Ahmed Bossman, Mariya Gubareva
doaj   +1 more source

Islamic securities (ṣukūk) and economic growth: New empirical investigation from Southeast Asia using non-parametric analysis of MCMC panel quantile regression [PDF]

open access: yesIslamic Economic Studies, 2022
Purpose – This paper aims to investigate empirically whether Islamic securities enhance economic growth in the Southeast Asian region based on the endogenous growth theory using the non-parametric analysis.
Mohammed Ayoub Ledhem   +1 more
doaj   +1 more source

Quantile processes for semi and nonparametric regression

open access: yesElectronic Journal of Statistics, 2017
To Appear in Electronic Journal of ...
Chao, Shih-Kang   +2 more
openaire   +3 more sources

Parametric and nonparametric conditional quantile regression modeling for dependent spatial functional data

open access: yesSpatial Statistics, 2021
Abstract The problem of estimating the spatio-functional quantile regression for a given spatial mixing structure ( X i , Y i ) ∈ F × R , when i ∈ Z N , N ≥ 1 and F is a separable Hilbert space, is investigated. We construct and compare four estimators of the regression quantile.
Mustapha Rachdi   +2 more
openaire   +2 more sources

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