Results 11 to 20 of about 130,023 (314)

ESTIMASI PARAMETER MODEL REGRESI NONPARAMETRIK B-SPLIN E PADA ANGKA KEMATIAN MATERNAL

open access: yesJurnal Matematika UNAND, 2021
Angka kematian maternal menjadi salah satu indikator yang dapat menggambarkan kesejahteraan masyarakat di suatu negara. Pada tahun 2019, di Provinsi Jawa Barat tercatat jumlah kematian ibu sebanyak 684 kasus atau 74,19 per 100.000 kelahiran hidup.
DHEA ARIESTA   +2 more
doaj   +1 more source

Spline Approximation, Part 2: From Polynomials in the Monomial Basis to B-splines—A Derivation

open access: yesMathematics, 2021
In a series of three articles, spline approximation is presented from a geodetic point of view. In part 1, an introduction to spline approximation of 2D curves was given and the basic methodology of spline approximation was demonstrated using splines ...
Nikolaj Ezhov   +2 more
doaj   +1 more source

Geometric Modeling Using New Cubic Trigonometric B-Spline Functions with Shape Parameter

open access: yesMathematics, 2020
Trigonometric B-spline curves with shape parameters are equally important and useful for modeling in Computer-Aided Geometric Design (CAGD) like classical B-spline curves.
Abdul Majeed   +5 more
doaj   +1 more source

Solving B- spline functions

open access: yesمجلة بغداد للعلوم, 2006
In this paper, we proposed to zoom Volterra equations system Altfazlah linear complementarity of the first type in this approximation were first forming functions notch Baschtdam matrix and then we discussed the approach and stability, to notch ...
Baghdad Science Journal
doaj   +1 more source

BMICA-independent component analysis based on B-spline mutual information estimator [PDF]

open access: yes, 2012
The information theoretic concept of mutual information provides a general framework to evaluate dependencies between variables. Its estimation however using B-Spline has not been used before in creating an approach for Independent Component Analysis. In
Li, Yan, Walters-Williams, Janett
core   +1 more source

Construction of B-spline surface from cubic B-spline asymptotic quadrilateral

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2017
Asymptote is widely used in astronomy, mechanics, architecture and relevant subjects. In this paper, by analyzing the Frenet frame and the Darboux frame of a curve on the surface, the necessary and sufficient conditions for a quadrilateral boundary being
Hui WANG, Chun-Gang ZHU, Cai-Yun LI
doaj   +1 more source

Multiquadric B-splines

open access: yesJournal of Approximation Theory, 1996
The authors define certain combinations of multiquadrics, denoted as \(\Psi\)-splines, and investigate their properties. In particular, the strong analogy between these \(\Psi\)-splines and the usual polynomial B-splines is pointed out at several places.
Beatson, R.K., Dyn, N.
openaire   +2 more sources

Quaternionic B-splines

open access: yesJournal of Approximation Theory, 2017
We introduce B-splines on the line of quaternionic order $B_q$ ($q$ in the algebra of quaternions) for the purposes of multi-channel signal and image analysis. The functions $B_q$ are defined first by their Fourier transforms, then as the solutions of distributional differential equation of quaternionic order.
Hogan, Jeffrey A., Massopust, Peter
openaire   +3 more sources

Anti-aliasing with stratified B-spline filters of arbitrary degree [PDF]

open access: yes, 2006
A simple and elegant method is presented to perform anti-aliasing in raytraced images. The method uses stratified sampling to reduce the occurrence of artefacts in an image and features a B-spline filter to compute the final luminous intensity at each ...
Anderson J.   +5 more
core   +1 more source

Developing an Approach to Redesign Freeform Surfaces Using B-Spline Technique [PDF]

open access: yesEngineering and Technology Journal, 2018
In product design process trends currently tend to use sculpture surface (freeform surface) that modeling by using (NURBS, B-spline, Bezier) technique to suit aesthetic, functional and manufacturability requirements.
Amjad Adulghafour, Ahmed Hassan
doaj   +1 more source

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