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Shira Kritchman

2 accepted papers

2020

Frequency Bias in Neural Networks for Input of Non-Uniform Density

ICML 2020poster

Recent works have partly attributed the generalization ability of over-parameterized neural networks to frequency bias – networks trained with gradient descent on data drawn from a uniform distribution find a low frequency fit before high frequency ones. As realistic training sets are not drawn from…

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2019

The Convergence Rate of Neural Networks for Learned Functions of Different Frequencies

NeurIPS 2019poster

We study the relationship between the frequency of a function and the speed at which a neural network learns it. We build on recent results that show that the dynamics of overparameterized neural networks trained with gradient descent can be well approximated by a linear system. When normalized tr…