ELM-DeepONets: Backpropagation-Free Training of Deep Operator Networks via Extreme Learning Machines

• URL: http://arxiv.org/abs/2501.09395v1
• Date: Thu, 16 Jan 2025 09:06:43 GMT
• Title: ELM-DeepONets: Backpropagation-Free Training of Deep Operator Networks via Extreme Learning Machines
• Authors: Hwijae Son,
• Abstract summary: Deep Operator Networks (DeepONets) are among the most prominent frameworks for operator learning.<n>We propose ELM-DeepONets, an Extreme Learning Machine (ELM) framework for DeepONets that leverages the backpropagation-free nature of ELM.
• Score: 0.4895118383237099
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Deep Operator Networks (DeepONets) are among the most prominent frameworks for operator learning, grounded in the universal approximation theorem for operators. However, training DeepONets typically requires significant computational resources. To address this limitation, we propose ELM-DeepONets, an Extreme Learning Machine (ELM) framework for DeepONets that leverages the backpropagation-free nature of ELM. By reformulating DeepONet training as a least-squares problem for newly introduced parameters, the ELM-DeepONet approach significantly reduces training complexity. Validation on benchmark problems, including nonlinear ODEs and PDEs, demonstrates that the proposed method not only achieves superior accuracy but also drastically reduces computational costs. This work offers a scalable and efficient alternative for operator learning in scientific computing.

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