Results 21 to 30 of about 74,272 (306)

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

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

Goal-Oriented Mesh Adaptation using a Dissipation-Based Error Indicator [PDF]

open access: yes, 2007
The accuracy of functionals of solutions of the Euler equations, solved using a finite volume code, are examined under grid refinement. It is shown that a commonly used adaptation indicator based on local solution gradients is ineffective in reducing ...
Richard Dwight   +3 more
core   +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

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

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.
Emmanuel Abbe, Rethnakaran Pulikkoonattu
openaire   +2 more sources

Numerical analysis of a relaxed variational model of hysteresis in two-phase solids [PDF]

open access: yes, 2001
This paper presents the numerical analysis for a variational formulation of rate-independent phase transformations in elastic solids due to Mielke et al.
Carstensen, Carsten   +3 more
core   +1 more source

Porównanie bayesowskich modeli Copula-AR(1)-GARCH(1,1) z asymetrycznością rozkładów warunkowych

open access: yesZeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, 2018
Celem artykułu było formalne porównanie mocy wyjaśniającej dwuwymiarowych bayesowskich modeli Copula-GARCH z warunkowym skośnym oraz symetrycznym rozkładem t-Studenta na przykładzie danych pochodzących z polskiego rynku finansowego.
Justyna Mokrzycka
doaj   +1 more source

Maximum norm a posteriori error estimate for a 2d singularly perturbed semilinear reaction-diffusion problem

open access: yes, 2008
A singularly perturbed semilinear reaction-diffusion equation, posed in the unit square, is discretized on arbitrary nonuniform tensor-product meshes. We establish a second-order maximum norm a posteriori error estimate that holds true uniformly in the ...
Kopteva, Natalia
core   +1 more source

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