Search Results for author: Matthias Löffler

Found 5 papers, 1 papers with code

AdaBoost and robust one-bit compressed sensing

1 code implementation5 May 2021 Geoffrey Chinot, Felix Kuchelmeister, Matthias Löffler, Sara van de Geer

This paper studies binary classification in robust one-bit compressed sensing with adversarial errors.

General Classification

Reconstruction of the neutrino mass as a function of redshift

no code implementations26 Feb 2021 Christiane S. Lorenz, Lena Funcke, Matthias Löffler, Erminia Calabrese

We reconstruct the neutrino mass as a function of redshift, z, from current cosmological data using both standard binned priors and linear spline priors with variable knots.

Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology

On the robustness of minimum norm interpolators and regularized empirical risk minimizers

no code implementations1 Dec 2020 Geoffrey Chinot, Matthias Löffler, Sara van de Geer

This article develops a general theory for minimum norm interpolating estimators and regularized empirical risk minimizers (RERM) in linear models in the presence of additive, potentially adversarial, errors.

Computationally efficient sparse clustering

no code implementations21 May 2020 Matthias Löffler, Alexander S. Wein, Afonso S. Bandeira

We study statistical and computational limits of clustering when the means of the centres are sparse and their dimension is possibly much larger than the sample size.

Optimality of Spectral Clustering in the Gaussian Mixture Model

no code implementations1 Nov 2019 Matthias Löffler, Anderson Y. Zhang, Harrison H. Zhou

Spectral clustering is one of the most popular algorithms to group high dimensional data.

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