Results 31 to 40 of about 57,267 (303)

Sojourn times of Gaussian random fields [PDF]

open access: yes, 2023
This paper is concerned with the asymptotic analysis of sojourn times of random fields with continuous sample paths. Under a very general framework we show that there is an interesting relationship between tail asymptotics of sojourn times and that of ...
Hashorva, Enkelejd   +3 more
core   +1 more source

Horizontal small-scale variability of water vapor in the atmosphere: implications for intercomparison of data from different measuring systems [PDF]

open access: yesAtmospheric Measurement Techniques, 2022
Water vapor concentration structures in the atmosphere are well approximated horizontally by Gaussian random fields at small scales (≲6 km). These Gaussian random fields have a spatial correlation in accordance with a structure function with a two-thirds
X. Calbet   +5 more
doaj   +1 more source

Gaussian Fields and Random Packing

open access: yesJournal of Statistical Physics, 2003
Consider sequential packing of unit balls in a large cube, as in the Renyi car-parking model, but in any dimension and with Poisson input. We show after suitable rescaling that the spatial distribution of packed balls tends to that of a Gaussian field in the thermodynamic limit. We prove analogous results for related applied models, including ballistic
Baryshnikov, Yu., Yukich, J. E.
openaire   +2 more sources

Deep Gaussian Markov Random Fields

open access: yesCoRR, 2020
Gaussian Markov random fields (GMRFs) are probabilistic graphical models widely used in spatial statistics and related fields to model dependencies over spatial structures. We establish a formal connection between GMRFs and convolutional neural networks (CNNs).
Per Sidén, Fredrik Lindsten
openaire   +3 more sources

Calendar Spread Exchange Options Pricing with Gaussian Random Fields

open access: yesRisks, 2018
Most of the models leading to an analytical expression for option prices are based on the assumption that underlying asset returns evolve according to a Brownian motion with drift.
Donatien Hainaut
doaj   +1 more source

On Circulant Embedding for Gaussian Random Fields in R

open access: yesJournal of Statistical Software, 2013
The high-dimensionality typically associated with discretized approximations to Gaussian random fields is a considerable hinderance to computationally efficient methods for their simulation.
Tilman M. Davies, David Bryant
doaj   +1 more source

Tail Bounds for ℓ1 Norm of Gaussian Random Matrices with Applications

open access: yesJournal of Mathematics, 2022
As major components of the random matrix theory, Gaussian random matrices have been playing an important role in many fields, because they are both unitary invariant and have independent entries and can be used as models for multivariate data or ...
Xianjie Gao   +2 more
doaj   +1 more source

Correlations and screening of topological charges in Gaussian random fields [PDF]

open access: yes, 2003
Two-point topological charge correlation functions of several types of geometric singularity in Gaussian random fields are calculated explicitly, using a general scheme: zeros of n-dimensional random vectors, signed by the sign of their Jacobian ...
Dennis, MR   +2 more
core   +1 more source

Spatial Warped Gaussian Processes: Estimation and Efficient Field Reconstruction

open access: yesEntropy, 2021
A class of models for non-Gaussian spatial random fields is explored for spatial field reconstruction in environmental and sensor network monitoring.
Gareth W. Peters   +3 more
doaj   +1 more source

Skew-Gaussian random field

open access: yesJournal of Computational and Applied Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
M. T. Alodat, Mohammad Y. Al-Rawwash
openaire   +1 more source

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