Fourier Transform
The Fourier Transform is a mathematical tool that decomposes signals into their constituent frequencies, enabling efficient analysis and manipulation of data across various domains. Current research focuses on leveraging the Fourier Transform within neural networks, particularly through architectures like Fourier Neural Operators and adaptations of existing models (e.g., Transformers) to incorporate Fourier-based feature extraction or parameter-efficient fine-tuning. This approach enhances efficiency and performance in diverse applications, including image processing, time series forecasting, and solving partial differential equations, while also addressing challenges like computational cost and robustness to noise.
Papers
ButterflyNet2D: Bridging Classical Methods and Neural Network Methods in Image Processing
Gengzhi Yang, Yingzhou Li
Fourier Continuation for Exact Derivative Computation in Physics-Informed Neural Operators
Haydn Maust, Zongyi Li, Yixuan Wang, Daniel Leibovici, Oscar Bruno, Thomas Hou, Anima Anandkumar
Learned coupled inversion for carbon sequestration monitoring and forecasting with Fourier neural operators
Ziyi Yin, Ali Siahkoohi, Mathias Louboutin, Felix J. Herrmann
Velocity continuation with Fourier neural operators for accelerated uncertainty quantification
Ali Siahkoohi, Mathias Louboutin, Felix J. Herrmann