Results 1 to 10 of about 2,530 (205)

Importance of Characteristic Features and Their Form for Data Exploration [PDF]

open access: yesEntropy
The nature of the input features is one of the key factors indicating what kind of tools, methods, or approaches can be used in a knowledge discovery process.
Urszula Stańczyk   +2 more
doaj   +2 more sources

Generalised discretisation of continuous-time distributions [PDF]

open access: yesThe Journal of Engineering, 2020
In this study, the definition of discretisation that was proposed recently for continuous-time distributions is made applicable not only to ordinary functions but to a variety of distributions including weak derivatives such that they could be viewed ...
Shin Kawai, Noriyuki Hori, Noriyuki Hori
doaj   +2 more sources

Data irregularities in discretisation of test sets used for evaluation of classification systems: A case study on authorship attribution [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2021
When patterns to be recognised are described by features of continuous type, discretisation becomes either an optional or necessary step in the initial data pre-processing stage.
Urszula Stańczyk, Beata Zielosko
doaj   +1 more source

Approximate Deconvolution Discretisation

open access: yesComputers & Mathematics with Applications, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
A. Boguslawski   +2 more
openaire   +2 more sources

A new method for controlling an induction motor using a hybrid discretization model predictive field orientated control.

open access: yesPLoS ONE, 2022
The dynamic performance of the Model Predictive Control (MPC) of an Induction Motor (IM) relies on the accuracy and computational efficiency of the Discretisation Technique (DT).
Hasan Alqaraghuli   +4 more
doaj   +2 more sources

Numerical Valuation of American Basket Options via Partial Differential Complementarity Problems

open access: yesMathematics, 2021
We study the principal component analysis based approach introduced by Reisinger and Wittum (2007) and the comonotonic approach considered by Hanbali and Linders (2019) for the approximation of American basket option values via multidimensional partial ...
Karel J. in’t Hout, Jacob Snoeijer
doaj   +1 more source

A corrected finite-difference scheme for the flexure equation with abrupt changes in coefficient [PDF]

open access: yesSolid Earth, 2023
The fourth-order differential equation describing elastic flexure of the lithosphere is one of the cornerstones of geodynamics that is key to understanding topography, gravity, glacial isostatic rebound, foreland basin evolution, and a host of other ...
D. Hindle, O. Besson
doaj   +1 more source

Discretising the Herman–Kluk propagator [PDF]

open access: yesNumerische Mathematik, 2017
The Herman--Kluk propagator is a popular semi-classical approximation of the unitary evolution operator in quantum molecular dynamics. In this paper we formulate the Herman--Kluk propagator as a phase space integral and discretise it by Monte Carlo and quasi-Monte Carlo quadrature.
Lasser, Caroline, Sattlegger, David
openaire   +3 more sources

Local Error Estimate of an L1-Finite Difference Scheme for the Multiterm Two-Dimensional Time-Fractional Reaction–Diffusion Equation with Robin Boundary Conditions

open access: yesFractal and Fractional, 2023
In this paper, the numerical method for a multiterm time-fractional reaction–diffusion equation with classical Robin boundary conditions is considered. The full discrete scheme is constructed with the L1-finite difference method, which entails using the ...
Jian Hou   +4 more
doaj   +1 more source

Improved hybrid discretisation of volume integral equation with the characteristic basis function method for analysing scattering from complex dielectric objects

open access: yesIET Microwaves, Antennas & Propagation, 2023
The improved hybrid discretisation of volume integral equation (VIE) combined with the characteristic basis function method is proposed to analyse the scattering from complex dielectric objects in this study.
Fei Huang, Yufa Sun, Ming Li, Dalei Wang
doaj   +1 more source

Home - About - Disclaimer - Privacy