Results 21 to 30 of about 856,973 (319)
Approximating Approximate Distance Oracles
CoRR, 2016 Given a finite metric space $(V,d)$, an approximate distance oracle is a data structure which, when queried on two points $u,v \in V$, returns an approximation to the the actual distance between $u$ and $v$ which is within some bounded stretch factor of the true distance.
Michael Dinitz, Zeyu Zhang 0003
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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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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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Algorithms and error bounds for multivariate piecewise constant approximation
, 2010 We review the surprisingly rich theory of approximation of functions of many vari- ables by piecewise constants. This covers for example the Sobolev-Poincar´e inequalities, parts of the theory of nonlinear approximation, Haar wavelets and tree ...
Oleg Davydov, Davydov, Oleg
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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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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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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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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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DEVELOPMENT OF A DISCRETE MATHEMATICAL MODEL OF THE HYDROTREATING DIESEL FUEL REACTOR
Современная наука и инновации, 2022 The article gives an example of the transformation of the initial mathematical model of the hydrotreating diesel fuel reactor which is a system of algebraic equations into its discrete analogue, using the method of "nets" (finite difference method).
Ksenia Igorevna Netsvetaeva
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