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Author

Akwum Onwunta

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#machine learning Preprint Oct 2026

S$^{2}$-PINN: Stochastic Separable Physics-Informed Neural Networks

Uncertainty quantification (UQ) for random partial differential equations (PDEs) is ubiquitous in computational science and engineering. However, classical spectral solvers for this class of problems face the curse of dimensionality, and existing neural solvers often ignore the stochastic structure that makes moments a...

Zhendong Li, Akwum Onwunta · 0 citations

Supervised Deep Multimodal Matrix Factorization for Interpretable Brain Network Analysis

Supervised Deep Multimodal Matrix Factorization (SD3MF), an interpretable framework for integrative brain network analysis that generalizes Symmetric Nonnegative Matrix Tri-Factorization from unsupervised single-graph clustering to supervised prediction over populations of multimodal graphs, is presented.

Amjad Seyedi, Li-Fang He, Song-Lin Zhao et al. · 0 citations

Deep learning methods for inverse problems using connections between proximal operators and Hamilton-Jacobi equations

This work proposes to leverage connections between proximal operators and Hamilton--Jacobi partial differential equations (HJ PDEs) to develop deep learning architectures for learning the prior and presents numerical results in dimensions up to $64, where the recovered prior is evaluated in a single forward pass.

Oluwatosin Akande, G. P. Langlois, Akwum Onwunta · 0 citations

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