Results 21 to 30 of about 655,974 (311)

MATH: A Scientific Tool for Numerical Methods Calculation and Visualization

open access: yesJournal of Open Research Software, 2016
MATH is an easy to use application for various numerical methods calculations with graphical user interface and integrated plotting tool written in Qt with extensive use of Qwt library for plotting options and use of Gsl and MuParser libraries as a ...
Henrich Glaser-Opitz   +1 more
doaj   +1 more source

Reinforcement Learning Path Planning Method with Error Estimation

open access: yesEnergies, 2021
Path planning is often considered as an important task in autonomous driving applications. Current planning method only concerns the knowledge of robot kinematics, however, in GPS denied environments, the robot odometry sensor often causes accumulated ...
Feihu Zhang   +4 more
doaj   +1 more source

Accurate error estimation in CG [PDF]

open access: yesNumerical Algorithms, 2021
In practical computations, the (preconditioned) conjugate gradient (P)CG method is the iterative method of choice for solving systems of linear algebraic equations $Ax=b$ with a real symmetric positive definite matrix $A$. During the iterations it is important to monitor the quality of the approximate solution $x_k$ so that the process could be stopped
Gérard Meurant, Jan Papez, Petr Tichý
openaire   +3 more sources

A posteriori error estimation for stochastic static problems [PDF]

open access: yes, 2014
To solve stochastic static field problems, a discretization by the Finite Element Method can be used. A system of equations is obtained with the unknowns (scalar potential at nodes for example) being random variables. To solve this stochastic system, the
MAC, Hung, CLENET, Stephane
core   +1 more source

A Combination of TsHARP and Thin Plate Spline Interpolation for Spatial Sharpening of Thermal Imagery

open access: yesRemote Sensing, 2014
There have been many studies and much attention paid to spatial sharpening for thermal imagery. Among them, TsHARP, based on the good correlation between vegetation index and land surface temperature (LST), is regarded as a standard technique because of ...
Xuehong Chen   +4 more
doaj   +1 more source

Numerical Approximation of the Fractional Rayleigh–Stokes Problem Arising in a Generalised Maxwell Fluid

open access: yesFractal and Fractional, 2022
This paper presents a numerical technique to approximate the Rayleigh–Stokes model for a generalised Maxwell fluid formulated in the Riemann–Liouville sense. The proposed method consists of two stages.
Le Dinh Long   +4 more
doaj   +1 more source

Consistent estimation in an implicit quadratic measurement error model [PDF]

open access: yes, 2004
An adjusted least squares estimator is derived that yields a consistent estimate of the parameters of an implicit quadratic measurement error model. In addition, a consistent estimator for the measurement error noise variance is proposed.
Er Kukush   +5 more
core   +1 more source

A Numerical Framework for Entropy Generation Using Second-Order Nanofluid Thin Film Flow over an Expanding Sheet: Error Estimation and Stability Analysis

open access: yesMathematics, 2023
Thin film flow (TFF) problems received a lot of attention in recent times. Some frequent applications of TFF include polymer and metal extraction, elastic sheet drawing, food striating, heat exchanges, and device fluidization.
Zeeshan   +4 more
doaj   +1 more source

Adaptive minimum bit-error-rate filtering [PDF]

open access: yes, 2004
Adaptive filtering has traditionally been developed based on the minimum mean square error (MMSE) principle and has found ever-increasing applications in communications. The paper develops adaptive filtering based on an alternative minimum bit error rate
Chen, S.
core   +1 more source

Approximating a solution to the two-part tariff problem

open access: yesCroatian Operational Research Review, 2015
The problem of setting the reservation price in terms of a two-part tariff requires, subject to new prices, reducing the difference between minimum expenditure for the starting level of utility and nominal consumer income.
Ilko Vrankić, Mira Krpan, Zrinka Lukač
doaj   +1 more source

Home - About - Disclaimer - Privacy