Results 1 to 10 of about 419,227 (284)
Nonlinear electrocardiographic imaging using polynomial approximation networks [PDF]
APL Bioengineering, 2018 Electrocardiography is a valuable tool to aid in medical understanding and treatment of heart-related ailments, specifically atrial fibrillation (AF) and other irregular cardiac behavior.
Abhejit Rajagopal +3 more
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Mathematics, 2022 In this paper, we discuss the cone of copositive tensors and its approximation. We describe some basic properties of copositive tensors and positive semidefinite tensors. Specifically, we show that a non-positive tensor (or Z-tensor) is copositive if and
Muhammad Faisal Iqbal, Faizan Ahmed
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Consistency of Approximation of Bernstein Polynomial-Based Direct Methods for Optimal Control
Machines, 2022 Bernstein polynomial approximation of continuous function has a slower rate of convergence compared to other approximation methods. “The fact seems to have precluded any numerical application of Bernstein polynomials from having been made.
Venanzio Cichella +4 more
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On the Approximation of Entire Harmonic Functions in ℝn Having Slow Growth
Journal of Mathematics, 2022 The generalized growth of entire transcendental functions in terms of polynomial approximation errors in some Banach spaces has been studied by various authors.
Devendra Kumar, A. Ghareeb
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Interval estimation of trigonometrical splines [PDF]
MATEC Web of Conferences, 2019 Quite often, it is necessary to quickly determine variation range of the function. If the function values are known at some points, then it is easy to construct the local spline approximation of this function and use the interval analysis rules.
Burova I.G., Ivanova E.G., Kostin V.A.
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Spline Approximation, Part 2: From Polynomials in the Monomial Basis to B-splines—A Derivation
Mathematics, 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
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The Stability Analysis of Linear Systems with Cauchy—Polynomial-Vandermonde Matrices
Axioms, 2023 The numerical approximation of both eigenvalues and singular values corresponding to a class of totally positive Bernstein–Vandermonde matrices, Bernstein–Bezoutian structured matrices, Cauchy—polynomial-Vandermonde structured matrices, and quasi ...
Mutti-Ur Rehman +3 more
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An overview on polynomial approximation of NP-hard problems [PDF]
Yugoslav Journal of Operations Research, 2009 The fact that polynomial time algorithm is very unlikely to be devised for an optimal solving of the NP-hard problems strongly motivates both the researchers and the practitioners to try to solve such problems heuristically, by making a trade-off between
Paschos Vangelis Th.
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Sistemnì Doslìdženâ ta Informacìjnì Tehnologìï, 2023 The new iterative method of approximating the boundary trajectory of a short-focus electron beam propagating in a free drift mode in a low-pressure ionized gas under the condition of compensation of the space charge of electrons is considered and ...
Igor Melnyk, Alina Pochynok
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SN Applied Sciences, 2021 This paper proposes a probabilistic small-signal stability analysis method based on the polynomial approximation approach. Since the correct determination of unknown coefficients has a direct effect on the accuracy of the polynomial approximation method,
Ali Mohammad Tabrizchi +1 more
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