Residual-based attention in physics-informed neural networks

SJ Anagnostopoulos, JD Toscano… - Computer Methods in …, 2024 - Elsevier
Driven by the need for more efficient and seamless integration of physical models and data,
physics-informed neural networks (PINNs) have seen a surge of interest in recent years …

Inferring turbulent velocity and temperature fields and their statistics from Lagrangian velocity measurements using physics-informed Kolmogorov-Arnold Networks

JD Toscano, T Käufer, Z Wang, M Maxey… - arXiv preprint arXiv …, 2024 - arxiv.org
We propose the Artificial Intelligence Velocimetry-Thermometry (AIVT) method to infer
hidden temperature fields from experimental turbulent velocity data. This physics-informed …

Deep neural operators can predict the real-time response of floating offshore structures under irregular waves

Q Cao, S Goswami, T Tripura, S Chakraborty… - Computers & …, 2024 - Elsevier
The utilization of neural operators in a digital twin model of an offshore floating structure
holds the potential for a significant shift in the prediction of structural responses and health …

Neuroscience inspired neural operator for partial differential equations

S Garg, S Chakraborty - Journal of Computational Physics, 2024 - Elsevier
We propose, in this paper, a Variable Spiking Wavelet Neural Operator (VS-WNO), which
aims to bridge the gap between theoretical and practical implementation of Artificial …

Inferring in vivo murine cerebrospinal fluid flow using artificial intelligence velocimetry with moving boundaries and uncertainty quantification

JD Toscano, C Wu, A Ladrón-de-Guevara… - Interface …, 2024 - royalsocietypublishing.org
Cerebrospinal fluid (CSF) flow is crucial for clearing metabolic waste from the brain, a
process whose dysregulation is linked to neurodegenerative diseases like Alzheimer's …

Learning in PINNs: Phase transition, total diffusion, and generalization

SJ Anagnostopoulos, JD Toscano… - arXiv preprint arXiv …, 2024 - arxiv.org
We investigate the learning dynamics of fully-connected neural networks through the lens of
gradient signal-to-noise ratio (SNR), examining the behavior of first-order optimizers like …

Randomized Forward Mode Gradient for Spiking Neural Networks in Scientific Machine Learning

R Wan, Q Zhang, GE Karniadakis - arXiv preprint arXiv:2411.07057, 2024 - arxiv.org
Spiking neural networks (SNNs) represent a promising approach in machine learning,
combining the hierarchical learning capabilities of deep neural networks with the energy …

Hybrid variable spiking graph neural networks for energy-efficient scientific machine learning

I Jain, S Garg, S Shriyam, S Chakraborty - arXiv preprint arXiv:2412.09379, 2024 - arxiv.org
Graph-based representations for samples of computational mechanics-related datasets can
prove instrumental when dealing with problems like irregular domains or molecular …

Neuroscience inspired scientific machine learning (Part-2): Variable spiking wavelet neural operator

S Garg, S Chakraborty - arXiv preprint arXiv:2311.14710, 2023 - arxiv.org
We propose, in this paper, a Variable Spiking Wavelet Neural Operator (VS-WNO), which
aims to bridge the gap between theoretical and practical implementation of Artificial …

Operator Learning for Reconstructing Flow Fields from Sparse Measurements: an Energy Transformer Approach

Q Zhang, D Krotov, GE Karniadakis - arXiv e-prints, 2025 - ui.adsabs.harvard.edu
Abstract Machine learning methods have shown great success in various scientific areas,
including fluid mechanics. However, reconstruction problems, where full velocity fields must …