arXiv Machine Learning

A cylindrical neural approximation theorem for conditional laws of McKean-Vlasov equations with common noise

arXiv:2608. 08040v1 Announce Type: cross Abstract: We introduce conditional cylindrical neural networks for approximating functionals of conditional laws in McKean-Vlasov equations with common noise.

arXiv Machine Learning
Oct 12

MVNN: A Measure-Valued Neural Network for Learning McKean-Vlasov Dynamics from Particle Data

The paper introduces MVNN, a measure‑valued neural network designed to learn interaction forces in systems governed by McKean‑Vlasov dynamics directly from particle trajectory data. MVNN extends conventional neural networks to operate on probability measures by learning cylindrical features through an embedding network that maps distributions to scalable vector representations. The authors prove theoretical properties such as well‑posedness, propagation‑of‑chaos, universal approximation, and provide quantitative rates under low‑dimensional measure‑dependence, while demonstrating the method’s accuracy and strong out‑of‑distribution generalization on various first‑ and second‑order dynamical systems.

By Liyao Lyu, Xinyue Yu, Hayden Schaeffer
arXiv Machine Learning
Oct 9

Barron Optimal Transport I: Generative Modeling

The paper introduces a new optimal transport framework that uses the Barron energy—an intrinsic neural network complexity measure—instead of the traditional kinetic energy. By modeling transport as deep residual networks that map a reference distribution to a target distribution, the authors define a new metric on probability measures and analyze its properties for generative modeling. They demonstrate that diffusion generative models are suboptimal in this Barron geometry and explore how adaptivity can improve alternative generative approaches.

By Evan Dogariu, Joan Bruna
arXiv Machine Learning
Sep 4

Differentiable Hybrid Modelling for Learning and Optimising Chemical Transport Processes from Experimental Data

The paper presents a differentiable hybrid modelling framework that combines a JAX finite volume population balance solver with learnable neural network components. This approach learns constitutive laws and initial conditions directly from experimental data, improving the fidelity of transport models in chemical engineering. The framework’s differentiability also enables optimisation of experimental settings for desired process outcomes.

By Arthur Jessop, Mohammed Alsubeihi, Ben Moseley, Ashwin Kumar Rajagopalan
arXiv Machine Learning
Jun 4

SPLIT-PINN: Separable Probability Learning Technique via Physics-Informed Neural Networks for High-Dimensional Probabilistic Modeling

arXiv:2606. 04000v1 Announce Type: cross Abstract: We present a probabilistic modeling framework for incorporating small-scale spatial heterogeneity into macroscopic descriptions of material behavior for polycrystalline metallic materials.

By Pouria Behnoudfar, Deekshith Naidu Ponnana, Noah J. Schmelzer, Janith Wanni, George T. Gray III, Dan J. Thoma, Curt A. Bronkhorst, Nan Chen, Wenxiao Pan
arXiv Machine Learning
Aug 19

Inverse Problems for Partial Differential Equations with Jump Discontinuities in Coefficients via Two-Stage Physics-Informed Deep Learning and Statistical Mixture Models

The paper introduces a two‑stage physics‑informed deep learning framework for solving inverse problems in partial differential equations with jump discontinuities in coefficients. The first stage uses a dual‑network architecture to approximate the PDE solution and a relaxed continuous surrogate of the coefficient field, followed by Bayesian inference with Gaussian mixture and birth‑death Markov chain models to estimate coefficient regimes and transition regions. The second stage reformulates the inverse problem as a constrained estimator with a hard piecewise‑constant coefficient representation, achieving accurate parameter estimation with acceptable computational costs across various PDE types.

By Zhikun Zhang, Guanyu Pan, Xiangjun Wang, Yong Xu, Guangtao Zhang