Results 11 to 20 of about 448,585 (316)

Resistant selection of the smoothing parameter for smoothing splines

open access: yesStatistics and Computing, 2001
Robust automatic selection techniques for the smoothing parameter of a smoothing spline are introduced. They are based on a robust predictive error criterion and can be viewed as robust versions of Cp and cross-validation. They lead to smoothing splines which are stable and reliable in terms of mean squared error over a large spectrum of model ...
Cantoni, Eva, Ronchetti, Elvezio
openaire   +3 more sources

New Bandwidth Selection for Kernel Quantile Estimators

open access: yesJournal of Probability and Statistics, 2012
We propose a cross-validation method suitable for smoothing of kernel quantile estimators. In particular, our proposed method selects the bandwidth parameter, which is known to play a crucial role in kernel smoothing, based on unbiased estimation of a ...
Ali Al-Kenani, Keming Yu
doaj   +2 more sources

Direct Determination of Smoothing Parameter for Penalized Spline Regression [PDF]

open access: yesJournal of Probability and Statistics, 2014
Penalized spline estimator is one of the useful smoothing methods. To construct the estimator, having goodness of fit and smoothness, the smoothing parameter should be appropriately selected. The purpose of this paper is to select the smoothing parameter
Takuma Yoshida
doaj   +2 more sources

A reliable data-based smoothing parameter selection method for circular kernel estimation [PDF]

open access: yesStatistics and computing, 2022
A new data-based smoothing parameter for circular kernel density (and its derivatives) estimation is proposed. Following the plug-in ideas, unknown quantities on an optimal smoothing parameter are replaced by suitable estimates.
J. Ameijeiras‐Alonso
semanticscholar   +1 more source

A smoothing approach for the optimal parameter selection problem with continuous inequality constraint

open access: yesOptimization Methods and Software, 2013
In this paper, we consider a class of optimal parameter selection problems with continuous inequality constraints. By introducing a smoothing parameter, we formulate a sequence of KKT Karush-Kuhn-Tucker systems of this problem and then transform it into a system of constrained nonlinear equations.
Feng, Z., Yiu, K., Teo, Kok Lay
openaire   +3 more sources

Smoothing parameter selection in Nadaraya-Watson kernel nonparametric regression using nature-inspired algorithm optimization [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2020
In the context of Nadaraya-Watson kernel nonparametric regression, the curve estimation is fully depending on the smoothing parameter. At this point, the nature-inspired algorithms can be used as an alternative tool to find the optimal selection. In this
Zinah Basheer, Zakariya Algamal
doaj   +1 more source

Choice of Smoothing Parameter for Kernel Type Ridge Estimators in Semiparametric Regression Models

open access: yesRevstat Statistical Journal, 2021
This paper concerns kernel-type ridge estimators of parameters in a semiparametric model. These estimators are a generalization of the well-known Speckman’s approach based on kernel smoothing method. The most important factor in achieving this smoothing
Ersin Yilmaz   +2 more
doaj   +1 more source

Design-based spatial interpolation with data driven selection of the smoothing parameter

open access: yesEnvironmental and Ecological Statistics, 2023
In the inverse distance weighting interpolation the interpolated, value is a weighted mean of the sampled values, with weights decreasing with the distances.
L. Fattorini   +4 more
semanticscholar   +1 more source

Smoothing parameter selection in kernel nonparametric regression using bat optimization algorithm

open access: yes, 2021
In the context of kernel nonparametric regression, the curve estimation is fully depending on the smoothing parameter. At this point, the nature-inspired algorithms can be used as an alternative tool to find the optimal selection.
Marwah Yahya Mustafa, Z. Algamal
semanticscholar   +1 more source

Cross-Validation, Information Theory, or Maximum Likelihood? A Comparison of Tuning Methods for Penalized Splines

open access: yesStats, 2021
Functional data analysis techniques, such as penalized splines, have become common tools used in a variety of applied research settings. Penalized spline estimators are frequently used in applied research to estimate unknown functions from noisy data ...
Lauren N. Berry, Nathaniel E. Helwig
doaj   +1 more source

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