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Bayesian Computational Methods [PDF]

open access: yes, 2011
In this chapter, we will first present the most standard computational challenges met in Bayesian Statistics, focussing primarily on mixture estimation and on model choice issues, and then relate these problems with computational solutions. Of course, this chapter is only a terse introduction to the problems and solutions related to Bayesian ...
Robert, Christian P.
core   +11 more sources

Keynote lecture. Towards reliability-management for debris flow risk assessment [PDF]

open access: yesE3S Web of Conferences, 2023
Recent progress in data-integrated simulation methods excelled our understanding of debris flows including triggering mechanisms and dynamic run-out behavior.
Kowalski Julia, Zhao Hu, Yildiz Anil
doaj   +1 more source

NON-LINEAR MULTI-FRAME IMAGE DENOISING USING WEIGHTED NUCLEAR NORM MINIMIZATION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
We address the problem of constructing single low noise image from a sequence of multiple noisy images. We use the approach based on finding and averaging similar blocks in the image and extend it to multiple images.
A. V. Nasonov   +2 more
doaj   +1 more source

CNN-BASED UNSUPERVISED REGISTRATION OF TIME-LAPSE MICROSCOPY IMAGE SEQUENCES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Image registration is widely used in live cell microscopy image analysis to compensate for the cell motion. It is a challenging task as the cell is not only moving (which causes rotation and translation), but also changes its form in time making the ...
N. A. Anoshina, D. V. Sorokin
doaj   +1 more source

HUMAN IMAGE MATTING BASED ON CONVOLUTIONAL NEURAL NETWORK AND PRINCIPAL CURVATURES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
Image matting often requires advanced image processing, especially in conditions, when small details such as hair are present in the image. In this article the hybrid method for human image matting based on convolutional neural network and principal ...
T. B. Sagindykov, E. A. Pavelyeva
doaj   +1 more source

On the stress state of a pressurised pipe with an initial thickness variation, subjected to non-homogeneous internal corrosion [PDF]

open access: yesE3S Web of Conferences, 2019
The paper concerns 2D problem of an elastic thick-walled pipe with an initial thickness variation, subjected to internal pressure and mechanochemical corrosion. The inner perimeter of the pipe cross-section is elliptical, while the outer is circular. The
Zhao Shixiang, Pronina Yulia
doaj   +1 more source

Comparing the Performance of Julia on CPUs versus GPUs and Julia-MPI versus Fortran-MPI: a case study with MPAS-Ocean (Version 7.1) [PDF]

open access: yesGeoscientific Model Development, 2023
Some programming languages are easy to develop at the cost of slow execution, while others are fast at runtime but much more difficult to write. Julia is a programming language that aims to be the best of both worlds – a development and production ...
S. Bishnu   +4 more
doaj   +1 more source

Nonlocal pseudopotential energy density functional for orbital-free density functional theory

open access: yesNature Communications, 2022
Orbital-free density functional theory is an electronic structure method with a low computational cost enabling large-scale material simulations. Here the authors present a novel protocol which allows for the application of nonlocal pseudopotentials to ...
Qiang Xu   +4 more
doaj   +1 more source

The Numerical Solution of the External Dirichlet Generalized Harmonic Problem for a Sphere by the Method of Probabilistic Solution

open access: yesMathematics, 2023
In the present paper, an algorithm for the numerical solution of the external Dirichlet generalized harmonic problem for a sphere by the method of probabilistic solution (MPS) is given, where “generalized” indicates that a boundary function has a finite ...
Mamuli Zakradze   +5 more
doaj   +1 more source

Model order reduction for gas and energy networks

open access: yesJournal of Mathematics in Industry, 2021
To counter the volatile nature of renewable energy sources, gas networks take a vital role. But, to ensure fulfillment of contracts under these circumstances, a vast number of possible scenarios, incorporating uncertain supply and demand, has to be ...
Christian Himpe   +2 more
doaj   +1 more source

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