Results 21 to 30 of about 1,062,165 (308)
Applied Categorical Structures, 2017 In a locally $λ$-presentable category, with $λ$ a regular cardinal, classes of objects that are injective with respect to a family of morphisms whose domains and codomains are $λ$-presentable, are known to be characterized by their closure under products, $λ$-directed colimits and $λ$-pure subobjects.
Jirí Rosický, Walter Tholen
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IEEE Access, 2023 The radial basis function (RBF) neural network is a type of universal approximator, and has been widely used in various fields. Improving the training speed and compactness of RBF networks are critical for promoting their applications.
Lifei Sun +6 more
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Information and Computation, 2010 The paper is the full version of the authors' conference paper [Lect. Notes Comput. Sci. 6506, 25--36 (2010; Zbl 1310.68264)]. In the paper, the authors propose an algorithm to determine the approximate period of a string using Hamming and swap distances.
Amihood Amir +2 more
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On approximately monotone and approximately Hölder functions [PDF]
Periodica Mathematica Hungarica, 2020 AbstractA real valued functionfdefined on a real open intervalIis called$$\Phi $$Φ-monotone if, for all$$x,y\in I$$x,y∈Iwith$$x\le y$$x≤yit satisfies$$\begin{aligned} f(x)\le f(y)+\Phi (y-x), \end{aligned}$$f(x)≤f(y)+Φ(y-x),where$$ \Phi :[0,\ell (I) [ \rightarrow \mathbb {R}_+$$Φ:[0,ℓ(I)[→R+is a given nonnegative error function, where$$\ell (I)$$ℓ(I ...
Angshuman R. Goswami, Zsolt Páles
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Engineering Transactions, 2019 The article presents and experimentally confirms two approaches to the problem of determining the working area of parallel robots using the example of a planar robot DexTAR with two degrees of freedom.
Dmitry MALYSHEV +3 more
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Proceedings of the Twenty-Second Annual ACM-SIAM Symposium on Discrete Algorithms, 2011 This article considers the problem of computing a minimum weight cycle in weighted undirected graphs. Given a weighted undirected graph G = ( V , E , w ), let C be a minimum weight cycle of G , let
Liam Roditty, Roei Tov
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Efficient approximation of random fields for numerical applications [PDF]
, 2014 This article is dedicated to the rapid computation of separable expansions for the approximation of random fields. We consider approaches based on techniques from the approximation of non-local operators on the one hand and based on the pivoted Cholesky ...
Michael Peters +5 more
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APPROXIMATION MODELS THE FORMATION PRESSURE ACCORDING TO GAS-DYNAMICS SURVEYS OF WELLS
Вестник Северо-Кавказского федерального университета, 2022 A convenient practical method for approximating of the formation pressure at an arbitrary point inside the reservoir is offered. The method uses measurements in neighboring wells which, unlike the classical methods of Lagrange and Newton, does not ...
Vladimir A. Tolpaev, Roman A. Ryskalenko
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A Comparison between Fixed-Basis and Variable-Basis Schemes for Function Approximation and Functional Optimization [PDF]
, 2012 Fixed-basis and variable-basis approximation schemes are compared for the problems of function approximation and functional optimization (also known as infinite programming).
Gnecco, Giorgio +3 more
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On renormalization of the approximate solution of the orbital coordinate system equations of orientation [PDF]
Известия Саратовского университета. Новая серия: Математика. Механика. ИнформатикаIn the quaternion formulation, the problem of mathematical modeling of the spacecraft motion in an elliptical orbit is considered. The control is a modulo-limited acceleration vector from the jet thrust, directed orthogonally to the plane of the ...
Pankratov, Ilia Alekseevich
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