Search Results for author: Gaspar Rochette

Found 4 papers, 3 papers with code

Scale Dependencies and Self-Similarity Through Wavelet Scattering Covariance

no code implementations19 Apr 2022 Rudy Morel, Gaspar Rochette, Roberto Leonarduzzi, Jean-Philippe Bouchaud, Stéphane Mallat

This covariance is nearly diagonalized by a second wavelet transform, which defines the scattering covariance.

Time Series

Efficient Per-Example Gradient Computations in Convolutional Neural Networks

1 code implementation12 Dec 2019 Gaspar Rochette, Andre Manoel, Eric W. Tramel

One notable application comes from the field of differential privacy, where per-example gradients must be norm-bounded in order to limit the impact of each example on the aggregated batch gradient.

Phase Harmonic Correlations and Convolutional Neural Networks

2 code implementations29 Oct 2018 Stéphane Mallat, Sixin Zhang, Gaspar Rochette

For wavelet filters, we show numerically that signals having sparse wavelet coefficients can be recovered from few phase harmonic correlations, which provide a compressive representation

Time Series

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