Results 21 to 30 of about 175,129,583 (297)

Approximation method for a fractional order transfer function with zero and pole

open access: yesArchives of Control Sciences, 2014
The paper presents an approximation method for elementary fractional order transfer function containing both pole and zero. This class of transfer functions can be applied for example to build model - based special control algorithms. The proposed method
Oprzędkiewicz Krzysztof
doaj   +1 more source

Dual Taylor Series, Spline Based Function and Integral Approximation and Applications

open access: yesMathematical and Computational Applications, 2019
In this paper, function approximation is utilized to establish functional series approximations to integrals. The starting point is the definition of a dual Taylor series, which is a natural extension of a Taylor series, and spline based series ...
Roy M. Howard
doaj   +1 more source

Optimal Centers’ Allocation in Smoothing or Interpolating with Radial Basis Functions

open access: yesMathematics, 2021
Function interpolation and approximation are classical problems of vital importance in many science/engineering areas and communities. In this paper, we propose a powerful methodology for the optimal placement of centers, when approximating or ...
Pedro González-Rodelas   +3 more
doaj   +1 more source

Approximate Implicitization Using Linear Algebra

open access: yesJournal of Applied Mathematics, 2012
We consider a family of algorithms for approximate implicitization of rational parametric curves and surfaces. The main approximation tool in all of the approaches is the singular value decomposition, and they are therefore well suited to floating-point ...
Oliver J. D. Barrowclough, Tor Dokken
doaj   +1 more source

Quantum and classical algorithms for approximate submodular function minimization [PDF]

open access: yesQuantum Information and Computation, 2019
Submodular functions are set functions mapping every subset of some ground set of size n into the real numbers and satisfying the diminishing returns property. Submodular minimization is an important field in discrete optimization theory due to its relevance for various branches of mathematics, computer science and economics.
Yassine Hamoudi   +3 more
openaire   +5 more sources

Hardness of submodular cost allocation : lattice matching and a simplex coloring conjecture [PDF]

open access: yes, 2014
We consider the Minimum Submodular Cost Allocation (MSCA) problem. In this problem, we are given k submodular cost functions f1, ... , fk: 2V -> R+ and the goal is to partition V into k sets A1, ..., Ak so as to minimize the total cost sumi = 1,k fi(Ai).
Vondrák, Jan, Ene, Alina
core   +1 more source

An Adaptive Policy Evaluation Network Based on Recursive Least Squares Temporal Difference With Gradient Correction

open access: yesIEEE Access, 2018
Reinforcement learning (RL) is an important machine learning paradigm that can be used for learning from the data obtained by the human-computer interface and the interaction in human-centered smart systems. One of the essential problems in RL algorithms
Dazi Li   +3 more
doaj   +1 more source

A sample decreasing threshold greedy-based algorithm for big data summarisation

open access: yesJournal of Big Data, 2021
As the scale of datasets used for big data applications expands rapidly, there have been increased efforts to develop faster algorithms. This paper addresses big data summarisation problems using the submodular maximisation approach and proposes an ...
Teng Li   +2 more
doaj   +1 more source

Efficient by Precision Algorithms for Approximating Functions from Some Classes by Fourier Series

open access: yesКібернетика та комп'ютерні технології
Introduction. The problem of approximation can be considered as the basis of computational methods, namely, the approximation of individual functions or classes of functions by functions that are in some sense simpler than the functions being ...
Olena Kolomys
doaj   +1 more source

Investigation of Optimization Algorithms for Neural Network Solutions of Optimal Control Problems with Mixed Constraints

open access: yesMachines, 2021
In this paper, we consider the problem of selecting the most efficient optimization algorithm for neural network approximation—solving optimal control problems with mixed constraints.
Irina Bolodurina, Lyubov Zabrodina
doaj   +1 more source

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