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Gabriele Sicuro

3 accepted papers

2023

Classification of Heavy-tailed Features in High Dimensions: a Superstatistical Approach

NeurIPS 2023poster

We characterise the learning of a mixture of two clouds of data points with generic centroids via empirical risk minimisation in the high dimensional regime, under the assumptions of generic convex loss and convex regularisation. Each cloud of data points is obtained via a double-stochastic process,…

2022

Fluctuations, Bias, Variance & Ensemble of Learners: Exact Asymptotics for Convex Losses in High-Dimension

ICML 2022spotlight

From the sampling of data to the initialisation of parameters, randomness is ubiquitous in modern Machine Learning practice. Understanding the statistical fluctuations engendered by the different sources of randomness in prediction is therefore key to understanding robust generalisation. In this man…

Cited by 36SourcePDFScholar
2021

Learning Gaussian Mixtures with Generalized Linear Models: Precise Asymptotics in High-dimensions

NeurIPS 2021spotlight

Generalised linear models for multi-class classification problems are one of the fundamental building blocks of modern machine learning tasks. In this manuscript, we characterise the learning of a mixture of $K$ Gaussians with generic means and covariances via empirical risk minimisation (ERM) with…

Cited by 83SourcePDFScholar