Results 21 to 30 of about 16,443 (262)

Smoothing and Differentiation of Kinematic Data Using Functional Data Analysis Approach: An Application of Automatic and Subjective Methods

open access: yesApplied Sciences, 2020
Smoothing is one of the fundamental procedures in functional data analysis (FDA). The smoothing parameter λ influences data smoothness and fitting, which is governed by selecting automatic methods, namely, cross-validation (CV) and generalized ...
Muhammad Athif Mat Zin   +3 more
doaj   +1 more source

A Study on Learning Parameters in Application of Radial Basis Function Neural Network Model to Rotor Blade Design Approximation

open access: yesApplied Sciences, 2021
Meta-model sre generally applied to approximate multi-objective optimization, reliability analysis, reliability based design optimization, etc., not only in order to improve the efficiencies of numerical calculation and convergence, but also to ...
Chang-Yong Song
doaj   +1 more source

A comparison of spatial analysis methods for the construction of topographic maps of retinal cell density. [PDF]

open access: yesPLoS ONE, 2014
Topographic maps that illustrate variations in the density of different neuronal sub-types across the retina are valuable tools for understanding the adaptive significance of retinal specialisations in different species of vertebrates. To date, such maps
Eduardo Garza-Gisholt   +3 more
doaj   +1 more source

Use of nonparametric regression methods for developing a local stem form model

open access: yesJournal of Forest Science, 2014
A local mean stem curve of spruce was represented using regression splines. Abilities of smoothing spline and P-spline to model the mean stem curve were evaluated using data of 85 carefully measured stems of Norway spruce. For both techniques the optimal
K. Kuželka, R. Marušák
doaj   +1 more source

A-Spline Regression for Fitting a Nonparametric Regression Function with Censored Data

open access: yesStats, 2020
This paper aims to solve the problem of fitting a nonparametric regression function with right-censored data. In general, issues of censorship in the response variable are solved by synthetic data transformation based on the Kaplan–Meier estimator in the
Ersin Yılmaz   +2 more
doaj   +1 more source

Estimating conditional heteroscedastic nonlinear autoregressive model by using smoothing spline and penalized spline methods [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2019
We propose smoothing spline (SS) and penalized spline (PS) methods in a class of nonparametric regression methods for estimating the unknown functions in a conditional heteroscedastic nonlinear autoregressive (CHNLAR) model.
Autcha Araveeporn
doaj   +1 more source

Equivalent Kernels for Smoothing Splines [PDF]

open access: yesJournal of Integral Equations and Applications, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Eggermont, P.P.B., LaRiccia, V.N.
openaire   +2 more sources

Development of Ramsey RESET to Identify the Polynomials Order of Smoothing Spline with Simulation Study

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika)
Path  analysis is used to determine the effect of exogenous variables on endogenous variables. One of the assumptions in path analysis is the linearity assumption. The linearity assumption can be tested using Ramsey RESET.
Muhammad Rafi Hasan Nurdin   +3 more
doaj   +1 more source

Smoothing Spline ANOVA Models: R Package gss

open access: yesJournal of Statistical Software, 2014
This document provides a brief introduction to the R package gss for nonparametric statistical modeling in a variety of problem settings including regression, density estimation, and hazard estimation.
Chong Gu
doaj   +1 more source

Precise Tensor Product Smoothing via Spectral Splines

open access: yesStats
Tensor product smoothers are frequently used to include interaction effects in multiple nonparametric regression models. Current implementations of tensor product smoothers either require using approximate penalties, such as those typically used in ...
Nathaniel E. Helwig
doaj   +1 more source

Home - About - Disclaimer - Privacy