Results 1 to 10 of about 5,139 (262)

Optimizing the neural network and iterated function system parameters for fractal approximation using a modified evolutionary algorithm [PDF]

open access: yesScientific Reports
Fractal interpolation has gained significant attention due to its ability to model complex, self-similar structures with high precision. However, optimizing the parameters of Iterated Function System (IFS)-based fractal interpolants remains a challenging
Sana Abdulla, K. Mahipal Reddy
doaj   +2 more sources

Optimization of the mean-square approximation procedures for iterated Stratonovich stochastic integrals of multiplicities 1 to 3 with respect to components of the multi-dimensional Wiener process based on Multiple Fourier–Legendre series [PDF]

open access: yesMATEC Web of Conferences, 2022
The article is devoted to approximation of iterated Ito and Stratonovich stochastic integrals of multiplicities 1 to 3 by the method of multiple Fourier–Legendre series.
Kuznetsov Dmitriy, Kuznetsov Mikhail
doaj   +1 more source

Analyzing Approximate Value Iteration Algorithms [PDF]

open access: yesMathematics of Operations Research, 2022
In this paper, we consider the stochastic iterative counterpart of the value iteration scheme wherein only noisy and possibly biased approximations of the Bellman operator are available. We call this counterpart the approximate value iteration (AVI) scheme.
Arunselvan Ramaswamy, Shalabh Bhatnagar
openaire   +2 more sources

Homogeneous Approximation of One- Dimensional Series of Iterated Integrals and Time Optimality

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2023
In the paper we consider nonlinear systems depending linearly on control with one-dimensional output. As is well known, under the analyticity requirement, the output can be expressed as a series of iterated integrals of controls with scalar coefficients.
Daria M. Andreieva   +1 more
doaj   +1 more source

Accelerated Iterated Filtering

open access: yesAustrian Journal of Statistics, 2023
Simulation-based inferences have attracted much attention in recent years, as the direct computation of the likelihood function in many real-world problems is difficult or even impossible.
Dao Nguyen
doaj   +1 more source

Homogeneous approximation for minimal realizations of series of iterated integrals

open access: yesVisnik Harkivsʹkogo Nacionalʹnogo Universitetu im. V.N. Karazina. Cepiâ Matematika, Prikladna Matematika i Mehanika, 2022
In the paper, realizable series of iterated integrals with scalar coefficients are considered and an algebraic approach to the homogeneous approximation problem for nonlinear control systems with output is developed.
D. M. Andreieva, S. Yu. Ignatovich
doaj   +1 more source

Iterative Thresholding for Sparse Approximations [PDF]

open access: yesJournal of Fourier Analysis and Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Blumensath, Thomas, Davies, Mike E.
openaire   +3 more sources

Rollout sampling approximate policy iteration [PDF]

open access: yesMachine Learning, 2008
Several researchers have recently investigated the connection between reinforcement learning and classification. We are motivated by proposals of approximate policy iteration schemes without value functions which focus on policy representation using classifiers and address policy learning as a supervised learning problem.
Dimitrakakis Christos()   +2 more
openaire   +7 more sources

Approximate and iterative methods [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2015
1Department of Mathematics, Pedagogical University, Podchorązych 2, 30-084 Krakow, Poland 2Faculty of Applied Mathematics, AGH University of Science and Technology, Mickiewicza 30, 30-059 Krakow, Poland 3Faculty of Management, University of Primorska, Cankarjeva 5, 6104 Koper, Slovenia 4Department of Mathematics, Technical University of Cluj-Napoca ...
Janusz Brzdęk   +5 more
openaire   +4 more sources

Multiple general sigmoids based Banach space valued neural network multivariate approximation

open access: yesCubo, 2023
Here we present multivariate quantitative approximations of Banach space valued continuous multivariate functions on a box or \(\mathbb{R}^{N},\) \(N\in \mathbb{N}\), by the multivariate normalized, quasi-interpolation, Kantorovich type and quadrature ...
George A. Anastassiou
doaj   +1 more source

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