Search Results for author: David Barajas-Solano

Found 7 papers, 1 papers with code

Randomized Physics-Informed Machine Learning for Uncertainty Quantification in High-Dimensional Inverse Problems

no code implementations11 Dec 2023 Yifei Zong, David Barajas-Solano, Alexandre M. Tartakovsky

Uncertainty in the inverse solution is quantified in terms of the posterior distribution of CKLE coefficients, and we sample the posterior by solving a randomized PICKLE minimization problem, formulated by adding zero-mean Gaussian perturbations in the PICKLE loss function.

Physics-informed machine learning Uncertainty Quantification

Online Real-time Learning of Dynamical Systems from Noisy Streaming Data: A Koopman Operator Approach

no code implementations10 Dec 2022 S. Sinha, Sai P. Nandanoori, David Barajas-Solano

Recent advancements in sensing and communication facilitate obtaining high-frequency real-time data from various physical systems like power networks, climate systems, biological networks, etc.

Time Series Time Series Analysis

Learning Parameters and Constitutive Relationships with Physics Informed Deep Neural Networks

1 code implementation10 Aug 2018 Alexandre M. Tartakovsky, Carlos Ortiz Marrero, Paris Perdikaris, Guzel D. Tartakovsky, David Barajas-Solano

We employ physics informed DNNs to estimate the unknown space-dependent diffusion coefficient in a linear diffusion equation and an unknown constitutive relationship in a non-linear diffusion equation.

Analysis of PDEs Computational Physics

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