Supplementary material to “Estimation bounds and sharp oracle inequalities of regularized procedures with Lipschitz loss functions”. Section 6 gives the proof of the main results …
The robustication parameter, which balances bias and robustness, plays a critical role in the construction of subGaussian estimators for heavy-tailed and/or skewed data. Although the …
JF Cai, J Li, D Xia - Journal of the American Statistical Association, 2023 - Taylor & Francis
We investigate a generalized framework to estimate a latent low-rank plus sparse tensor, where the low-rank tensor often captures the multi-way principal components and the sparse …
Nonparametric regression subject to convexity or concavity constraints is increasingly popular in economics, finance, operations research, machine learning, and statistics …
F Abramovich, V Grinshtein… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In this paper we consider high-dimensional multiclass classification by sparse multinomial logistic regression. We propose first a feature selection procedure based on penalized …
B Wang, J Fan - Journal of the American Statistical Association, 2024 - Taylor & Francis
This paper studies noisy low-rank matrix completion in the presence of heavy-tailed and possibly asymmetric noise, where we aim to estimate an underlying low-rank matrix given a …
M Lerasle - Lecture Notes, 2019 - lerasle.perso.math.cnrs.fr
These notes gather some results dealing with robustness issues in statistical learning. Most of the results lie within the framework introduced by Vapnik [58], see also [44]. Given a …
M Lerasle - arXiv preprint arXiv:1908.10761, 2019 - arxiv.org
These notes gather recent results on robust statistical learning theory. The goal is to stress the main principles underlying the construction and theoretical analysis of these estimators …