Results 1 to 10 of about 10,513 (148)
The use of complex structure splines in roadway design
Российский технологический журналObjectives. The aim of the work is to develop the theory of spline-approximation of a sequence of points on a plane for using compound splines with a complex structure.
V. I. Struchenkov, D. A. Karpov
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Robust and automatic modeling of tunnel structures based on terrestrial laser scanning measurement
International Journal of Distributed Sensor Networks, 2019 The terrestrial laser scanning technology is increasingly applied in the deformation monitoring of tunnel structures. However, outliers and data gaps in the terrestrial laser scanning point cloud data have a deteriorating effect on the model ...
Xiangyang Xu, Hao Yang, Boris Kargoll
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THB-Spline Approximations for Turbine Blade Design with Local B-Spline Approximations
, 2022 We consider two-stage scattered data fitting with truncated hierarchical B-splines (THB-splines) for the adaptive reconstruction of industrial models. The first stage of the scheme is devoted to the computation of local least squares variational spline approximations, exploiting a simple fairness functional to handle data distributions with a locally ...
C. Bracco +5 more
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Copositive Polynomial and Spline Approximation
Journal of Approximation Theory, 1995 Here the authors prove that if a function \(f \in \mathbb{C} [0.1]\) changes sign finitely many times then for any \(n\) large enough the degree of copositive approximation to \(f\) by quadratic splines with \(n-1\) equally spaced knots can be estimated by a constant multiple of \(\omega_2 (f,1/n)\).
Hu, Y.K., Leviatan, D., Yu, X.M.
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Hermite bicubic spline collocation method for Poisson's equations
Journal of Numerical Analysis and Approximation Theory, 2004 In this paper is presented a bicubic spline collocation method for the numerical approximation of the solution of Dirichlet problem for the Poisson's equation.
Mihaela Puşcaş
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Natural Cubic Spline Approximation of Risk-Neutral Density
International Journal of Financial StudiesThe risk-neutral density is a fundamental concept in pricing financial derivatives, risk management, and assessing financial markets’ perceptions over significant political or economic events.
Shuang Zhou +4 more
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Journal of Geodetic Science, 2020 B-spline curves are a linear combination of control points (CP) and B-spline basis functions. They satisfy the strong convex hull property and have a fine and local shape control as changing one CP affects the curve locally, whereas the total number of ...
Kermarrec Gaël, Alkhatib Hamza
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Shock and Vibration, 2004 A spline-based differential quadrature method (SDQM) is elaborated and applied to the vibration analysis of rectangular plates with free edges. The sextic B-spline functions are used to construct the pertaining cardinal spline interpolants.
Hongzhi Zhong, Qiang Guo
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Approximation of Double-dimensional Densities of Probabilities by Orthogonal Bases
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2009 Approach to approximation of double-dimensional densities of probabilities in rectangle areas by the families of double-dimensional orthogonal functions created by multiplication of single-dimensional orthogonal functions is studied. Calculation formulas
l. A. Lyozin
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Hierarchical Spline Approximation
, 2001 We discuss spline refinement methods that approximate multi-valued data defined over one, two, and three dimensions. The input to our method is a coarse decomposition of the compact domain of the function to be approximated consisting of intervals (univariate case), triangles (bivariate case), and tetrahedra (trivariate case).
Wiley, David F. +5 more
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