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Area of Science:

  • Machine Learning
  • Functional Analysis
  • Numerical Analysis

Background:

  • Neural networks excel at approximating continuous functions in finite dimensions.
  • Emerging research explores neural networks for infinite-dimensional function approximation.
  • Operator approximation theorems confirm neural networks' capability in infinite-dimensional settings.

Purpose of the Study:

  • To introduce a neural network-based method (BasisONet) for approximating mappings between function spaces.
  • To develop a novel function autoencoder for compressing infinite-dimensional function data.
  • To enable predictions at arbitrary resolutions from input data at arbitrary resolutions.

Main Methods:

  • Proposed BasisONet, a neural network architecture for function space mapping.
  • Developed a function autoencoder for dimensionality reduction of function data.
  • Conducted numerical experiments to evaluate performance and precision.

Main Results:

  • BasisONet demonstrates competitive performance against existing methods on benchmarks.
  • The model accurately addresses data on complex geometries with high precision.
  • Analysis revealed notable characteristics of the BasisONet model.

Conclusions:

  • BasisONet effectively approximates mappings between function spaces.
  • The function autoencoder successfully reduces dimensionality for infinite-dimensional data.
  • The model offers a precise and versatile tool for function approximation tasks.