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Efficient and Scalable Approach to Equilibrium Conditional Simulation of Gibbs Markov Random Fields [PDF]

open access: yesEPJ Web of Conferences, 2020
We study the performance of an automated hybrid Monte Carlo (HMC) approach for conditional simulation of a recently proposed, single-parameter Gibbs Markov random field.
Žukovič Milan   +1 more
doaj   +1 more source

Hidden Markov Random Fields

open access: yesThe Annals of Applied Probability, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kunsch, Hans   +2 more
openaire   +3 more sources

Simulating Lagrangian Subgrid‐Scale Dispersion on Neutral Surfaces in the Ocean

open access: yesJournal of Advances in Modeling Earth Systems, 2022
To capture the effects of mesoscale turbulent eddies, coarse‐resolution Eulerian ocean models resort to tracer diffusion parameterizations. Likewise, the effect of eddy dispersion needs to be parameterized when computing Lagrangian pathways using coarse ...
Daan Reijnders   +2 more
doaj   +1 more source

3D CLASSIFICATION OF CROSSROADS FROM MULTIPLE AERIAL IMAGES USING MARKOV RANDOM FIELDS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
The precise classification and reconstruction of crossroads from multiple aerial images is a challenging problem in remote sensing. We apply the Markov Random Fields (MRF) approach to this problem, a probabilistic model that can be used to consider ...
S. Kosov   +4 more
doaj   +1 more source

Outage Estimation in Electric Power Distribution Systems Using a Neural Network Ensemble

open access: yesEnergies, 2021
Outages in an overhead power distribution system are caused by multiple environmental factors, such as weather, trees, and animal activity. Since they form a major portion of the outages, the ability to accurately estimate these outages is a significant ...
Sanjoy Das   +2 more
doaj   +1 more source

Computing the Cramer-Rao bound of Markov random field parameters: Application to the Ising and the Potts models [PDF]

open access: yes, 2013
This report considers the problem of computing the Cramer-Rao bound for the parameters of a Markov random field. Computation of the exact bound is not feasible for most fields of interest because their likelihoods are intractable and have intractable ...
Batatia, Hadj   +3 more
core   +7 more sources

Bayesian 2D Deconvolution: A Model for Diffuse Ultrasound Scattering [PDF]

open access: yesModeling, Identification and Control, 2001
Observed medical ultrasound images are degraded representations of the true acoustic tissue reflectance. The degradation is due to blur and speckle, and significantly reduces the diagnostic value of the images. In order to remove both blur and speckle we
Oddvar Husby   +4 more
doaj   +1 more source

Consistent estimation of the basic neighborhood of Markov random fields [PDF]

open access: yes, 2006
For Markov random fields on $\mathbb{Z}^d$ with finite state space, we address the statistical estimation of the basic neighborhood, the smallest region that determines the conditional distribution at a site on the condition that the values at all other ...
Csiszár, Imre, Talata, Zsolt
core   +4 more sources

Partially observed Markov random fields are variable neighborhood random fields

open access: yes, 2012
The present paper has two goals. First to present a natural example of a new class of random fields which are the variable neighborhood random fields. The example we consider is a partially observed nearest neighbor binary Markov random field. The second
Cassandro, Marzio   +2 more
core   +1 more source

Diffusion Adaptation Strategies for Distributed Estimation over Gaussian Markov Random Fields [PDF]

open access: yes, 2014
The aim of this paper is to propose diffusion strategies for distributed estimation over adaptive networks, assuming the presence of spatially correlated measurements distributed according to a Gaussian Markov random field (GMRF) model.
Di Lorenzo, Paolo
core   +1 more source

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