NINNs: Nudging Induced Neural Networks

• URL: http://arxiv.org/abs/2203.07947v1
• Date: Tue, 15 Mar 2022 14:29:26 GMT
• Title: NINNs: Nudging Induced Neural Networks
• Authors: Harbir Antil, Rainald L\"ohner, Randy Price
• Abstract summary: New algorithms called nudging induced neural networks (NINNs) to control and improve the accuracy of deep neural networks (DNNs) NINNs work by adding a feedback control term to the forward propagation of the network. Rigorous convergence analysis is established for NINNs.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: New algorithms called nudging induced neural networks (NINNs), to control and improve the accuracy of deep neural networks (DNNs), are introduced. The NINNs framework can be applied to almost all pre-existing DNNs, with forward propagation, with costs comparable to existing DNNs. NINNs work by adding a feedback control term to the forward propagation of the network. The feedback term nudges the neural network towards a desired quantity of interest. NINNs offer multiple advantages, for instance, they lead to higher accuracy when compared with existing data assimilation algorithms such as nudging. Rigorous convergence analysis is established for NINNs. The algorithmic and theoretical findings are illustrated on examples from data assimilation and chemically reacting flows.

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