Results 41 to 50 of about 315,972 (272)

KNOT OPTIMIZATION FOR BI-RESPONSE SPLINE NONPARAMETRIC REGRESSION WITH GENERALIZED CROSS-VALIDATION (GCV)

Barekeng
Nonparametric regression is a statistical method used to model relationships between variables without making strong assumptions about the functional form of the relationship.
Andre Fajry Al Barra, Dewi Retno Sari Saputro   +1 more
doaj   +1 more source

Surgery of spline-type and molecular frames [PDF]

, 2009
We prove a result about producing new frames for general spline-type spaces by piecing together portions of known frames. Using spline-type spaces as models for the range of certain integral transforms, we obtain results for time-frequency decompositions
Romero, José Luis
core   +2 more sources

Semialgebraic splines

Computer Aided Geometric Design, 2017
25 pages, 6 ...
Michael DiPasquale, Frank Sottile, Lanyin Sun   +2 more
openaire   +2 more sources

Smoothing under Diffeomorphic Constraints with Homeomorphic Splines [PDF]

, 2010
In this paper we introduce a new class of diffeomorphic smoothers based on general spline smoothing techniques and on the use of some tools that have been recently developed in the context of image warping to compute smooth diffeomorphisms.
de Boor C., He X., Jérémie Bigot, Sébastien Gadat   +3 more
core   +4 more sources

The Principal Component Linear Spline Quantile Regression Model in Statistical Downscaling for Rainfall Data [PDF]

Journal of Sciences, Islamic Republic of Iran
Information regarding rainfall can be obtained from global data, namely the global climate model that can be accessed through the statistical downscaling approach.
Andi Yulianti, Anna Islamiyati, Erna Herdiani   +2 more
doaj   +1 more source

Variable degree polynomial splines are Chebyshev splines [PDF]

Advances in Computational Mathematics, 2011
Variable degree polynomial (VDP) splines have recently proved themselves as a valuable tool in obtaining shape preserving approximations. However, some usual properties which one would expect of a spline space in order to be useful in geometric modeling, do not follow easily from their definition.
Bosner, Tina, Rogina, Mladen
openaire   +2 more sources

Nonlinear 2D C¹ Quadratic Spline Quasi-Interpolants on Triangulations for the Approximation of Piecewise Smooth Functions

Axioms, 2023
The aim of this paper is to present and study nonlinear bivariate C1 quadratic spline quasi-interpolants on uniform criss-cross triangulations for the approximation of piecewise smooth functions.
Francesc Aràndiga, Sara Remogna
doaj   +1 more source

Volumetric Untrimming: Precise decomposition of trimmed trivariates into tensor products

, 2019
3D objects, modeled using Computer Aided Geometric Design tools, are traditionally represented using a boundary representation (B-rep), and typically use spline functions to parameterize these boundary surfaces.
Antolin, Pablo, Elber, Gershon, Massarwi, Fady   +2 more
core   +1 more source

Multilevel refinable triangular PSP-splines (Tri-PSPS) [PDF]

, 2015
A multi-level spline technique known as partial shape preserving splines (PSPS) (Li and Tian, 2011) has recently been developed for the design of piecewise polynomial freeform geometric surfaces, where the basis functions of the PSPS can be directly ...
Li, Qingde, Tian, Jie
core   +1 more source

Implicit cubic B-spline scheme for the fractional Black-Scholes model with Caputo-Hadamard derivative [PDF]

Journal of Mahani Mathematical Research
In this study, we introduce a novel numerical scheme for solving the Black–Scholes equation endowed with a Caputo-Hadamard fractional time derivative. The temporal derivative is discretized via a finite-difference approach, ensuring both stability and ...
Roya Montazeri
doaj   +1 more source