Results 21 to 30 of about 497,613 (208)

A Posteriori L_∞ (L_2 )+L_2 (H^1 )–Error Bounds in Discontinuous Galerkin Methods For Semidiscrete Semilinear Parabolic Interface Problems

open access: yesمجلة بغداد للعلوم, 2021
The aim of this paper is to derive a posteriori error estimates for semilinear parabolic interface problems. More specifically, optimal order a posteriori error analysis in the - norm for semidiscrete semilinear parabolic interface problems is derived by
Younis Abid Sabawi
doaj   +1 more source

A quoi sert la modalisation a posteriori ?

open access: yesAnglophonia, 2015
This paper explores Paul Larreya’s concept of a posteriori modalisation. We first come back on Larreya’s distinction between a priori and a posteriori modalisation and suggest that his typology of the uses and functions of a posteriori modalisation ...
Grégory Furmaniak
doaj   +1 more source

Considerations on a posteriori probability

open access: yesStatistica, 2015
In this first paper of 1911 relating to the sex ratio at birth, Gini repurposed a Laplace’s succession rule according to a Bayesian version. The Gini's intuition consisted in assuming for prior probability a Beta type distribution and introducing the ...
Corrado Gini
doaj   +1 more source

A note on Probably Certifiably Correct algorithms [PDF]

open access: yes, 2015
Many optimization problems of interest are known to be intractable, and while there are often heuristics that are known to work on typical instances, it is usually not easy to determine a posteriori whether the optimal solution was found.
Bandeira, Afonso S.
core   +3 more sources

A priori and a posteriori error estimates for a virtual element spectral analysis for the elasticity equations [PDF]

open access: yesIMA Journal of Numerical Analysis, 2017
We present a priori and a posteriori error analyses of a virtual element method (VEM) to approximate the vibration frequencies and modes of an elastic solid. We analyse a variational formulation relying only on the solid displacement and propose an $H^{1}
D. Mora, G. Rivera
semanticscholar   +1 more source

An Efficient Gaussian Filter Based on Gaussian Symmetric Markov Random Field

open access: yesIEEE Access, 2022
This article presents a new image denoising algorithm that uses Gaussian Symmetric Markov random fields based on maximum a posteriori estimation. First, an image denoising model based on Gaussian Symmetric Markov random fields is built, and the image ...
Fusong Xiong   +3 more
doaj   +1 more source

Universal a posteriori metrics game [PDF]

open access: yes2010 IEEE Information Theory Workshop, 2010
Over binary input channels, uniform distribution is a universal prior, in the sense that it allows to maximize the worst case mutual information over all binary input channels, ensuring at least 94.2% of the capacity. In this paper, we address a similar question, but with respect to a universal generalized linear decoder.
Abbe, Emmanuel   +1 more
openaire   +2 more sources

High-throughput calculations of charged point defect properties with semi-local density functional theory—performance benchmarks for materials screening applications

open access: yesnpj Computational Materials, 2023
Calculations of point defect energetics with Density Functional Theory (DFT) can provide valuable insight into several optoelectronic, thermodynamic, and kinetic properties. These calculations commonly use methods ranging from semi-local functionals with
Danny Broberg   +12 more
doaj   +1 more source

Elliptic reconstruction and a posteriori error estimates for fully discrete linear parabolic problems [PDF]

open access: yes, 2006
We derive a posteriori error estimates for fully discrete approximations to solutions of linear parabolic equations. The space discretization uses finite element spaces that are allowed to change in time. Our main tool is an appropriate adaptation of the
Lakkis, Omar, Makridakis, Charalambos
core   +1 more source

A posteriori error estimation and adaptivity in hp virtual elements [PDF]

open access: yesNumerische Mathematik, 2018
An explicit and computable error estimator for the hp\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength ...
L. Veiga, G. Manzini, L. Mascotto
semanticscholar   +1 more source

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