Results 41 to 50 of about 40,549 (156)
Inverse problems in geophysics
, 2013 A brief overview of inverse problems in geophysics. Covers what is an inverse problem, how do we solve them, some caveats, and examples applications. Examples were calculated using an old version of the open-source software Fatiando a Terra.
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Advanced numerical techniques for inverse problems in geophysics
, 2023 This thesis presents an efficient methodology to couple Model Order Reduction techniques within the framework of geophysical probabilistic inversion problems. Accurate models of the interaction between Earth inner processes and surface features are essential to make reliable predictions of the observables which are a fundamental part of Bayesian ...
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Optimization Methods for Inverse Problems
, 2017 Optimization plays an important role in solving many inverse problems. Indeed, the task of inversion often either involves or is fully cast as a solution of an optimization problem.
Cui, Tiangang +2 more
core
Известия высших учебных заведений. Поволжский регион: Физико-математические наукиBackground. The inverse problems of electromagnetic sensing, aimed at determining the internal parameters of the object from external measurements of the electromagnetic field, are incorrectly posed and computationally complex.
A.O. Lapich, Yu.G. Smirnov
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The use of partitioned matrices in geophysical inversion problems [PDF]
Geophysical Journal International, 1985 The parameters in many geophysical inverse problems may be partitioned so as to separate them into two distinct sets. This separation might be on the grounds of physical differences between the two sets, or it might be for computational reasons. In this paper, methods for making estimates of one or other set of parameters unbiased by uncertainty in the
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Reinforcement learning in optimization problems. Applications to geophysical data inversion
AIMS Geosciences, 2022 <abstract> <p>In this paper, we introduce a novel inversion methodology that combines the benefits offered by Reinforcement-Learning techniques with the advantages of the Epsilon-Greedy method for an expanded exploration of the model space.
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Topological inversion in geodesy-based, non-linear problems in geophysics
Computers & Geosciences, 2013 Geophysical phenomena such as volcanism and earthquake faulting are modeled on the basis of geodetic observations leading to redundant systems of highly non-linear equations. Still, such systems of equations cannot be solved using traditional analytical techniques.
Saltogianni, V., Stiros, S.
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Comparing hard and soft prior bounds in geophysical inverse problems [PDF]
Geophysical Journal International, 1988 Summary In linear inversion of a finite-dimensional data vector y to estimate a finite-dimensional prediction vector z, prior information about the correct earth model x E is essential if y is to supply useful limits for z. The one exception occurs when all the prediction functionals are linear combinations of the data functionals.
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Editorial: Advances in geophysical inverse problems
Frontiers in Earth Science, 2023 Yanfei Wang +4 more
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A conceptual framework for discrete inverse problems in geophysics
, 2019 In geophysics, inverse modelling can be applied to a wide range of goals, including, for instance, mapping the distribution of rock physical parameters in applied geophysics and calibrating models to forecast the behaviour of natural systems in hydrology, meteorology and climatology.
Giudici, Mauro +9 more
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