Advances in Physics-Informed Neural Networks and Inverse Problems

The field of scientific computing is witnessing significant advancements in the development of physics-informed neural networks and inverse problem solving. Recent research has focused on improving the accuracy and efficiency of these models, particularly in capturing complex physical phenomena and solving high-dimensional problems. Notably, the incorporation of symmetry and equivariance in neural network architectures has led to improved performance in modeling multistability and bifurcation phenomena. Additionally, the development of novel optimization techniques and adaptive sampling methods has enhanced the ability to solve inverse problems with increased accuracy and reduced computational cost.

Some noteworthy papers in this area include the introduction of Equivariant U-Shaped Neural Operators for the Cahn-Hilliard Phase-Field Model, which achieves accurate predictions across space and time by encoding symmetry and scale hierarchy. The Feynman-Kac-Flow approach has also been proposed for inference steering of conditional flow matching, enabling the generation of samples that meet precise requirements. Furthermore, the development of Neuro-Spectral Architectures for causal physics-informed networks has addressed issues of spectral bias and causality in standard PINNs, leading to improved performance in solving partial differential equations.

Sources

Equivariant U-Shaped Neural Operators for the Cahn-Hilliard Phase-Field Model

User Manual for Model-based Imaging Inverse Problem

Feynman-Kac-Flow: Inference Steering of Conditional Flow Matching to an Energy-Tilted Posterior

Understanding sparse autoencoder scaling in the presence of feature manifolds

Convergence for adaptive resampling of random Fourier features

Equivariant Flow Matching for Symmetry-Breaking Bifurcation Problems

Sparse Autoencoder Neural Operators: Model Recovery in Function Spaces

Mapping on a Budget: Optimizing Spatial Data Collection for ML

TensoIS: A Step Towards Feed-Forward Tensorial Inverse Subsurface Scattering for Perlin Distributed Heterogeneous Media

Instance-Wise Adaptive Sampling for Dataset Construction in Approximating Inverse Problem Solutions

Neuro-Spectral Architectures for Causal Physics-Informed Networks

Variational Garrote for Statistical Physics-based Sparse and Robust Variable Selection

PySensors 2.0: A Python Package for Sparse Sensor Placement

An Open Benchmark Dataset for GeoAI Foundation Models for Oil Palm Mapping in Indonesia

Fourier Learning Machines: Nonharmonic Fourier-Based Neural Networks for Scientific Machine Learning

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