Results 11 to 20 of about 4,368 (154)

Nonparametric quantile regression captures regional variability and scaling deviations in Atlantic surfclam length–weight relationships [PDF]

open access: yesScientific Reports
The universality of the allometric model for describing the length–weight relationship in marine species has been questioned, particularly for some invertebrates such as sea urchins, clams, and barnacles.
Gorka Bidegain   +6 more
doaj   +3 more sources

Nonparametric C- and D-vine-based quantile regression [PDF]

open access: yesDependence Modeling, 2022
Quantile regression is a field with steadily growing importance in statistical modeling. It is a complementary method to linear regression, since computing a range of conditional quantile functions provides more accurate modeling of the stochastic ...
Tepegjozova Marija   +3 more
doaj   +7 more sources

Modeling Spatial Data with Heteroscedasticity Using PLVCSAR Model: A Bayesian Quantile Regression Approach [PDF]

open access: yesEntropy
Spatial data not only enables smart cities to visualize, analyze, and interpret data related to location and space, but also helps departments make more informed decisions.
Rongshang Chen, Zhiyong Chen
doaj   +2 more sources

Bayesian nonparametric quantile process regression and estimation of marginal quantile effects [PDF]

open access: yesBiometrics, 2021
AbstractFlexible estimation of multiple conditional quantiles is of interest in numerous applications, such as studying the effect of pregnancy‐related factors on low and high birth weight. We propose a Bayesian nonparametric method to simultaneously estimate noncrossing, nonlinear quantile curves. We expand the conditional distribution function of the
Steven G. Xu, Brian J. Reich
openaire   +4 more sources

Nonparametric Smoothing for Extremal Quantile Regression with Heavy Tailed Data

open access: yesRevstat Statistical Journal, 2021
In several different fields, it is interested in analyzing the upper or lower tail quantile of the underlying distribution rather than mean or center quantile.
Takuma Yoshida
doaj   +1 more source

How Do Financial Development and Renewable Energy Affect Consumption-Based Carbon Emissions?

open access: yesMathematical and Computational Applications, 2022
This paper bridges the gap in the literature by employing the novel quantile-on-quantile (QQ) approach, the quantile regression approach, and the nonparametric Granger causality test in quantiles to assess the effect of international trade on consumption-
Abraham Ayobamiji Awosusi   +3 more
doaj   +1 more source

Nonparametric Quantile Regression Estimation With Mixed Discrete and Continuous Data [PDF]

open access: yesJournal of Business & Economic Statistics, 2020
In this paper, we investigate the problem of nonparametrically estimating a conditional quantile function with mixed discrete and continuous covariates. A local linear smoothing technique combining both continuous and discrete kernel functions is introduced to estimate the conditional quantile function.
Li, Degui, Li, Qi, Li, Zheng
openaire   +2 more sources

Sampling Importance Resampling Algorithm with Nonignorable Missing Response Variable Based on Smoothed Quantile Regression

open access: yesMathematics, 2023
The presence of nonignorable missing response variables often leads to complex conditional distribution patterns that cannot be effectively captured through mean regression.
Jingxuan Guo   +7 more
doaj   +1 more source

Quantile Regression in Space-Time Varying Coefficient Model of Upper Respiratory Tract Infections Data

open access: yesMathematics, 2023
Space-time varying coefficient models, which are used to identify the effects of covariates that change over time and spatial location, have been widely studied in recent years. One such model, called the quantile regression model, is particularly useful
Bertho Tantular   +3 more
doaj   +1 more source

Nonparametric depth and quantile regression for functional data [PDF]

open access: yesBernoulli, 2019
We investigate nonparametric regression methods based on spatial depth and quantiles when the response and the covariate are both functions. As in classical quantile regression for finite dimensional data, regression techniques developed here provide insight into the influence of the functional covariate on different parts, like the center as well as ...
Chowdhury, Joydeep, Chaudhuri, Probal
openaire   +4 more sources

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