Search Results for author: Florentin Guth

Found 8 papers, 5 papers with code

Generalization in diffusion models arises from geometry-adaptive harmonic representations

1 code implementation4 Oct 2023 Zahra Kadkhodaie, Florentin Guth, Eero P. Simoncelli, Stéphane Mallat

Finally, we show that when trained on regular image classes for which the optimal basis is known to be geometry-adaptive and harmonic, the denoising performance of the networks is near-optimal.

Image Denoising Memorization

Conditionally Strongly Log-Concave Generative Models

1 code implementation31 May 2023 Florentin Guth, Etienne Lempereur, Joan Bruna, Stéphane Mallat

There is a growing gap between the impressive results of deep image generative models and classical algorithms that offer theoretical guarantees.

Memorization

Learning multi-scale local conditional probability models of images

1 code implementation6 Mar 2023 Zahra Kadkhodaie, Florentin Guth, Stéphane Mallat, Eero P Simoncelli

We instantiate this model using convolutional neural networks (CNNs) with local receptive fields, which enforce both the stationarity and Markov properties.

Denoising Image Generation +1

Wavelet Score-Based Generative Modeling

no code implementations9 Aug 2022 Florentin Guth, Simon Coste, Valentin De Bortoli, Stephane Mallat

This is because of ill-conditioning properties of the score that we analyze mathematically.

Phase Collapse in Neural Networks

1 code implementation ICLR 2022 Florentin Guth, John Zarka, Stéphane Mallat

Spatial variability is therefore transformed into variability along channels.

Tight Frame Contractions in Deep Networks

no code implementations ICLR 2021 John Zarka, Florentin Guth, Stéphane Mallat

Numerical experiments demonstrate that deep neural networks classifiers progressively separate class distributions around their mean, achieving linear separability.

Separation and Concentration in Deep Networks

2 code implementations18 Dec 2020 John Zarka, Florentin Guth, Stéphane Mallat

On the opposite, a soft-thresholding on tight frames can reduce within-class variabilities while preserving class means.

General Classification Image Classification

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