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Approximation and Gradient Descent Training with Neural Networks

arXiv 2405.11696 ↗First posted 19 May 2024cs.LGcited by 1

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Abstract (arXiv)

It is well understood that neural networks with carefully hand-picked weights provide powerful function approximation and that they can be successfully trained in over-parametrized regimes. Since over-parametrization ensures zero training error, these two theories are not immediately compatible. Recent work uses the smoothness that is required for approximation results to extend a neural tangent kernel (NTK) optimization argument to an under-parametrized regime and show direct approximation bounds for networks trained by gradient flow. Since gradient flow is only an idealization of a practical method, this paper establishes analogous results for networks trained by gradient descent.

Key facts. Cited by 1 paper in the map (data through 7 Oct 2026). Builds on 43 of its 60 references that are in the map. First posted on arXiv 19 May 2024.

Builds on

43 of 60 references.

References · 43

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31 more
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