Results 21 to 30 of about 2,732,958 (292)

Study of Quasi-Static Magnetization with the Random-Field Ising Model

open access: yesAlgorithms, 2020
The topic of this paper is modeling based on Hamiltonian spin interactions. Preliminary studies on the identification of quasi-static magnetizing field in a magnetic system were presented.
Roman Gozdur
doaj   +1 more source

Random field Ising model and Parisi-Sourlas supersymmetry. Part II. Renormalization group

open access: yesJournal of High Energy Physics, 2021
We revisit perturbative RG analysis in the replicated Landau-Ginzburg description of the Random Field Ising Model near the upper critical dimension 6. Working in a field basis with manifest vicinity to a weakly-coupled Parisi-Sourlas supersymmetric fixed
Apratim Kaviraj   +2 more
doaj   +1 more source

Lighting-and Personal Characteristic-Aware Markov Random Field Model for Facial Image Relighting System

open access: yesIEEE Access, 2022
A learning-based image relighting framework is proposed for automatically changing the lighting conditions of facial images from one lighting source to another. Given only a 2D unseen facial testing image, the framework automatically infers the highlight
Ching-Ting Tu   +2 more
doaj   +1 more source

Random-field Ising model: Insight from zero-temperature simulations

open access: yesCondensed Matter Physics, 2014
We enlighten some critical aspects of the three-dimensional (d=3) random-field Ising model (RFIM) from simulations performed at zero temperature. We consider two different, in terms of the field distribution, versions of model, namely a Gaussian RFIM and
P.E. Theodorakis, N.G. Fytas
doaj   +1 more source

A Deep-Structured Fully Connected Random Field Model for Structured Inference

open access: yesIEEE Access, 2015
There has been significant interest in the use of fully connected graphical models and deep-structured graphical models for the purpose of structured inference.
Alexander Wong   +3 more
doaj   +1 more source

Improved Image Segmentation Algorithm Based on High-order Conditional Random Field Model [PDF]

open access: yesJisuanji gongcheng, 2016
In image segmentation,Conditional Random Field(CRF) model and its higher-order model are widely used as energy function.The latter is based on second-order model by introducing higher-order potential function to reflect consistency of pixel labels of ...
WANG Lingjiao,ZHONG Yiqun,GUO Hua,PENG Zhiqiang
doaj   +1 more source

Self-similar Random Fields and Rescaled Random Balls Models [PDF]

open access: yesJournal of Theoretical Probability, 2009
We study generalized random fields which arise as rescaling limits of spatial configurations of uniformly scattered random balls as the mean radius of the balls tends to 0 or infinity. Assuming that the radius distribution has a power law behavior, we prove that the centered and renormalized random balls field admits a limit with strong spatial ...
Biermé, Hermine   +2 more
openaire   +3 more sources

Simple Assumptions to Improve Markov Illuminance and Reflectance

open access: yesFrontiers in Psychology, 2022
Murray recently introduced a novel computational lightness model, Markov illuminance and reflectance (MIR). MIR is a promising new approach that simulates human lightness processing using a conditional random field (CRF) where natural-scene statistics of
Yuki Kobayashi   +2 more
doaj   +1 more source

Ground state non-universality in the random field Ising model [PDF]

open access: yes, 2001
Two attractive and often used ideas, namely universality and the concept of a zero temperature fixed point, are violated in the infinite-range random-field Ising model.
A. Aharony   +16 more
core   +1 more source

Random-field-induced order in a bosonic t-J model

open access: yesNew Journal of Physics, 2014
In this paper, we study the effect of a random quenched external field for spin order and also multiple Bose–Einstein condensation (BEC). This system is realized by the cold atomic gases in an optical lattice.
Yoshihito Kuno   +2 more
doaj   +1 more source

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