Results 41 to 50 of about 18,085 (342)

Methods for Bayesian inversion of seismic data [PDF]

open access: yes, 2015
The purpose of Bayesian seismic inversion is to combine information derived from seismic data and prior geological knowledge to determine a posterior probability distribution over parameters describing the elastic and geological properties of the ...
Walker, Matthew James
core   +1 more source

Integrating Multiple-Try DREAM(ZS) to Model-Based Bayesian Geoacoustic Inversion Applied to Seabed Backscattering Strength Measurements

open access: yesJournal of Marine Science and Engineering, 2019
The key to model-based Bayesian geoacoustic inversion is to solve the posterior probability distributions (PPDs) of parameters. In order to obtain PPDs more efficiently and accurately, the state-of-the-art Markov chain Monte Carlo (MCMC) method, multiple-
Bo Zou   +5 more
doaj   +1 more source

Bayesian Approach to Inverse Quantum Statistics [PDF]

open access: yesPhysical Review Letters, 2000
A nonparametric Bayesian approach is developed to determine quantum potentials from empirical data for quantum systems at finite temperature. The approach combines the likelihood model of quantum mechanics with a priori information over potentials implemented in form of stochastic processes.
Lemm, J. C., Uhlig, J., Weiguny, A.
openaire   +3 more sources

SUPERSEDED - Synthetic data and code for "Bayesian geophysical inversion using invertible neural networks"

open access: yes, 2020
## This item has been replaced by the one which can be found at https://datashare.ed.ac.uk/handle/10283/3886 ## This dataset contains the synthetic data and codes used to generate those data for manuscript "Bayesian geophysical inversion using ...

core   +1 more source

A Novel Approach for Bathymetry Estimation through Bayesian Gravity Inversion

open access: yesGeosciences, 2023
The bathymetry is the most superficial layer of the Earth’s crust on which it is possible to perform direct measurements. However, it is also well known that water covers more than 70% of the Earth’s surface, so an enormous expenditure of acquisition ...
Daniele Sampietro, Martina Capponi
doaj   +1 more source

Parallelized Adaptive Importance Sampling for Solving Inverse Problems

open access: yesFrontiers in Earth Science, 2018
In the field of groundwater hydrology and more generally geophysics, solving inverse problems in a complex, geologically realistic, and discrete model space often requires the usage of Monte Carlo methods.
Christoph Jäggli   +2 more
doaj   +1 more source

Efficient probabilistic inversion of geophysical data [PDF]

open access: yes, 2019
Estimation of uncertainties is critical for subsequent decision making in all applications of geosciences such as geological hazard analysis and risk mitigation, management and exploitation of subsurface resources, and environmental waste disposal ...
Nawaz, Muhammad Atif
core   +1 more source

Inversion of shallow seabed structure and geoacoustic parameters with waveguide characteristic impedance based on Bayesian approach

open access: yesFrontiers in Marine Science, 2023
Underwater acoustic technology is essential for ocean observation, exploration and exploitation, and its development is based on an accurate predication of underwater acoustic wave propagation.
Hanhao Zhu   +9 more
doaj   +1 more source

Inversion of Bayesian networks

open access: yesInternational Journal of Approximate Reasoning
Variational autoencoders and Helmholtz machines use a recognition network (encoder) to approximate the posterior distribution of a generative model (decoder). In this paper we study the necessary and sufficient properties of a recognition network so that it can model the true posterior distribution exactly.
Jesse van Oostrum   +2 more
openaire   +3 more sources

Retrieval of canopy component temperatures through Bayesian inversion of directional thermal measurements

open access: yes, 2009
Evapotranspiration is usually estimated in remote sensing from single temperature value representing both soil and vegetation. This surface temperature is an aggregate over multiple canopy components.
Tol, C., van der   +3 more
core   +1 more source

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