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Multi-resolution learning with operator- and recurrent neural networks

Abstract

Operator networks, unlike traditional neural networks can be trained on multi-resolution data. Motivated by the real-world applications where high-resolution data is commonly more difficult to obtain, we leverage this property and present an architecture that combines operator networks with long short-term memory (LSTM) architecture in order to capture long-time behavior of multiple dynamical systems. We show that the proposed models are able to achieve much higher accuracy in high-resolution testing, while the single-resolution counterparts require significantly more high-resolution training samples to achieve competitive results.

Category

Academic lecture

Client

  • Research Council of Norway (RCN) / 309834

Language

English

Author(s)

Affiliation

  • SINTEF Digital / Mathematics and Cybernetics
  • Brown University

Presented at

CRUNCH seminar

Place

Providence, Rhode Island, USA

Date

09.08.2023 - 09.08.2023

Organizer

Brown University

Year

2023

View this publication at Cristin