Efficient and modular implicit differentiation

M Blondel, Q Berthet, M Cuturi… - Advances in neural …, 2022 - proceedings.neurips.cc
Automatic differentiation (autodiff) has revolutionized machine learning. Itallows to express
complex computations by composing elementary ones in creativeways and removes the …

Modern regularization methods for inverse problems

M Benning, M Burger - Acta numerica, 2018 - cambridge.org
Regularization methods are a key tool in the solution of inverse problems. They are used to
introduce prior knowledge and allow a robust approximation of ill-posed (pseudo-) inverses …

A direct algorithm for 1-D total variation denoising

L Condat - IEEE Signal Processing Letters, 2013 - ieeexplore.ieee.org
A very fast noniterative algorithm is proposed for denoising or smoothing one-dimensional
discrete signals, by solving the total variation regularized least-squares problem or the …

[图书][B] Sparse image and signal processing: Wavelets and related geometric multiscale analysis

JL Starck, F Murtagh, J Fadili - 2015 - books.google.com
This thoroughly updated new edition presents state of the art sparse and multiscale image
and signal processing. It covers linear multiscale geometric transforms, such as wavelet …

Stein Unbiased GrAdient estimator of the Risk (SUGAR) for multiple parameter selection

CA Deledalle, S Vaiter, J Fadili, G Peyré - SIAM Journal on Imaging Sciences, 2014 - SIAM
Algorithms for solving variational regularization of ill-posed inverse problems usually involve
operators that depend on a collection of continuous parameters. When the operators enjoy …

Bearing fault diagnosis based on variational mode decomposition and total variation denoising

S Zhang, Y Wang, S He, Z Jiang - Measurement Science and …, 2016 - iopscience.iop.org
Feature extraction plays an essential role in bearing fault detection. However, the measured
vibration signals are complex and non-stationary in nature, and meanwhile impulsive …

Implicit differentiation of lasso-type models for hyperparameter optimization

Q Bertrand, Q Klopfenstein, M Blondel… - International …, 2020 - proceedings.mlr.press
Abstract Setting regularization parameters for Lasso-type estimators is notoriously difficult,
though crucial for obtaining the best accuracy. The most popular hyperparameter …

CNV_IFTV: an isolation forest and total variation-based detection of CNVs from short-read sequencing data

X Yuan, J Yu, J Xi, L Yang, J Shang… - … /ACM transactions on …, 2019 - ieeexplore.ieee.org
Accurate detection of copy number variations (CNVs) from short-read sequencing data is
challenging due to the uneven distribution of reads and the unbalanced amplitudes of gains …

Posterior expectation of the total variation model: Properties and experiments

C Louchet, L Moisan - SIAM Journal on Imaging Sciences, 2013 - SIAM
The total variation image (or signal) denoising model is a variational approach that can be
interpreted, in a Bayesian framework, as a search for the maximum point of the posterior …

The degrees of freedom of partly smooth regularizers

S Vaiter, C Deledalle, J Fadili, G Peyré… - Annals of the Institute of …, 2017 - Springer
We study regularized regression problems where the regularizer is a proper, lower-
semicontinuous, convex and partly smooth function relative to a Riemannian submanifold …