Vidhyanand (Vick) Mahase PharmD, PhD.’s Post

View profile for Vidhyanand (Vick) Mahase PharmD, PhD.

Artificial Intelligence/ Machine Learning Engineer

Neural networks are frequently employed to solve Partial Differential Equations (PDEs) across various domains. However, nonlinear PDEs with multiple solutions present a significant challenge for existing neural network techniques. Function learning strategies attempt to learn the solution function but often falter due to an ill-posed problem. Conversely, operator learning methods, such as Physics-Informed Neural Networks (PINN) and DeepONet, aim to approximate the mapping between parameters and solutions. Introducing NINO: a novel method designed to tackle nonlinear PDEs with multiple solutions through operator learning techniques. NINO enhances traditional Newton methods by integrating them into a superior network architecture and formulating problems more effectively. NINO surpasses conventional Newton methods and neural operator techniques in terms of execution speed. It employs two distinct training methodologies: one using Mean Squared Error Loss and another that combines supervised and unsupervised learning. In experiments, the neural operator method efficiently learned the Newton operator, requiring minimal supervised data. https://lnkd.in/edM5VRWh

Newton Informed Neural Operator for Computing Multiple Solutions of Nonlinear Partials Differential Equations

Newton Informed Neural Operator for Computing Multiple Solutions of Nonlinear Partials Differential Equations

arxiv.org

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