Physics‐informed deep neural networks for learning parameters and constitutive relationships in subsurface flow problems

AM Tartakovsky, CO Marrero… - Water Resources …, 2020 - Wiley Online Library
We present a physics‐informed deep neural network (DNN) method for estimating hydraulic
conductivity in saturated and unsaturated flows governed by Darcy's law. For saturated flow …

Learning parameters and constitutive relationships with physics informed deep neural networks

AM Tartakovsky, CO Marrero, P Perdikaris… - arxiv preprint arxiv …, 2018 - arxiv.org
We present a physics informed deep neural network (DNN) method for estimating
parameters and unknown physics (constitutive relationships) in partial differential equation …

Data‐driven design of wave‐propagation models for shale‐oil reservoirs based on machine learning

F **ong, J Ba, D Gei… - Journal of Geophysical …, 2021 - Wiley Online Library
The exploration and exploitation of shale oil is an important aspect in the oil industry.
Seismic properties and well‐log data are essential to establish wave‐propagation models …

Physics-informed machine learning with conditional Karhunen-Loève expansions

AM Tartakovsky, DA Barajas-Solano, Q He - Journal of Computational …, 2021 - Elsevier
We present a new physics-informed machine learning approach for the inversion of partial
differential equation (PDE) models with heterogeneous parameters. In our approach, the …

Physics‐informed machine learning method for large‐scale data assimilation problems

YH Yeung, DA Barajas‐Solano… - Water Resources …, 2022 - Wiley Online Library
We develop a physics‐informed machine learning approach for large‐scale data
assimilation and parameter estimation and apply it for estimating transmissivity and …

Joint hydrogeophysical inversion: state estimation for seawater intrusion models in 3D

K Steklova, E Haber - Computational Geosciences, 2017 - Springer
Seawater intrusion (SWI) is a complex process, where 3D modeling is often necessary in
order to monitor and manage the affected aquifers. Here, we present a synthetic study to test …

Approximate Bayesian model inversion for PDEs with heterogeneous and state-dependent coefficients

DA Barajas-Solano, AM Tartakovsky - Journal of Computational Physics, 2019 - Elsevier
We present two approximate Bayesian inference methods for parameter estimation in partial
differential equation (PDE) models with space-dependent and state-dependent parameters …

A computationally efficient parallel L evenberg‐M arquardt algorithm for highly parameterized inverse model analyses

Y Lin, D O'Malley, VV Vesselinov - Water Resources Research, 2016 - Wiley Online Library
Inverse modeling seeks model parameters given a set of observations. However, for
practical problems because the number of measurements is often large and the model …

Learning to regularize with a variational autoencoder for hydrologic inverse analysis

D O'Malley, JK Golden, VV Vesselinov - arxiv preprint arxiv:1906.02401, 2019 - arxiv.org
Inverse problems often involve matching observational data using a physical model that
takes a large number of parameters as input. These problems tend to be under-constrained …

[HTML][HTML] Gaussian process regression and conditional Karhunen-Loève models for data assimilation in inverse problems

YH Yeung, DA Barajas-Solano… - Journal of Computational …, 2024 - Elsevier
We present a model inversion algorithm, CKLEMAP, for data assimilation and parameter
estimation in partial differential equation models of physical systems with spatially …