Results 31 to 40 of about 95,553 (284)

Interpolation on the Bakhvalov mesh in the presence of an exponential boundary layer

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2019
Interpolation of the function of one variable with large gradients in the region of the exponential boundary layer was studied. The interpolated function corresponds to solution of a boundary value problem for an ordinary differential equation of the ...
I.A. Blatov, N.A. Zadorin
doaj   +1 more source

Numerical solution of the finite horizon stochastic linear quadratic control problem [PDF]

open access: yes, 2017
The treatment of the stochastic linear quadratic optimal control problem with finite time horizon requires the solution of stochastic differential Riccati equations.
Tony Stillfjord   +10 more
core   +1 more source

Research on the accuracy characteristics of methods for numerical differentiation and integration of measurement signals about motion parameters

open access: yesТехнічна інженерія
The article presents an assessment of the accuracy characteristics of the methods of numerical differentiation and integration used in a computerized device for measuring the parameters of the motion of objects.
Yu.O. Podchashynskyi, O.O. Luhovykh
doaj   +1 more source

Configuring Artificial Neural Networks for stock market predictions

open access: yesTechnological and Economic Development of Economy, 2014
Making accurate predictions for stock market values with advanced non-linear methods creates opportunities for business practitioners, especially nowadays, with highly volatile stock market evolutions.
Gheorghe Ruxanda, Laura Maria Badea
doaj   +1 more source

On meshfree numerical differentiation [PDF]

open access: yes, 2018
We combine techniques in meshfree methods and Gaussian process regressions to construct kernel-based estimators for numerical derivatives from noisy data.
Qi Ye, Leevan Ling
core   +1 more source

Compact Finite Difference Schemes: A Review of Fundamentals, Applications, and Practical Implementation

open access: yesMathematics
Compact finite difference schemes approximate spatial derivatives through implicit relations between neighboring grid points. Despite using compact stencils and relatively simple algebraic structures, these schemes achieve high-order accuracy and ...
Andrea Arroyo Ramo   +3 more
doaj   +1 more source

Spectral analysis of variable-order multi-terms fractional differential equations

open access: yesOpen Physics, 2023
In this work, a numerical scheme based on shifted Jacobi polynomials (SJPs) is deduced for variable-order fractional differential equations (FDEs). We find numerical solution of consider problem of fractional order. The proposed numerical scheme is based
Shah Kamal   +3 more
doaj   +1 more source

LOCAL INTERPOLATION AND APPROXIMATION IN TASKS OF HEURISTIC SYNTHESIS OF DIGITAL FILTER

open access: yesРоссийский технологический журнал, 2018
The article has an overview character with elements of generalization, but at the same time it includes information brought to the level of immediate practical implementation.
V. N. Isakov, P. I. Timoshenko
doaj   +1 more source

Automatic numerical differentiation by discrete mollification [PDF]

open access: yes, 1987
A new, very simple, totally automated and powerful technique for numerical differentiation based on the computation of the derivative of a suitable filtered version of the noisy data by discrete mollification is presented.
Murio, D.A.
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

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