42 citations · 42 across the 2 of their papers we have counts for
6 papers
AdaBoost and robust one-bit compressed sensing
Geoffrey Chinot, Felix Kuchelmeister, Matthias Löffler +1
This paper studies binary classification in robust one-bit compressed sensing with adversarial errors. It is assumed that the model is overparameterized and that the parameter of i…
Reconstruction of the neutrino mass as a function of redshift
Christiane S. Lorenz, Lena Funcke, Matthias Löffler +1
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. Using…
Spectral thresholding for the estimation of Markov chain transition operators
Matthias Löffler, Antoine Picard
We consider nonparametric estimation of the transition operator of a Markov chain and its transition density where the singular values of are assumed to decay exponenti…
Efficient Estimation of Linear Functionals of Principal Components
Vladimir Koltchinskii, Matthias Löffler, Richard Nickl
We study principal component analysis (PCA) for mean zero i.i.d. Gaussian observations in a separable Hilbert space with unknown covariance operator $…
Constructing confidence sets for the matrix completion problem
Alexandra Carpentier, Olga Klopp, Matthias Löffler
In the present note we consider the problem of constructing honest and adaptive confidence sets for the matrix completion problem. For the Bernoulli model with known variance of th…
Adaptive confidence sets for matrix completion
Alexandra Carpentier, Olga Klopp, Matthias Löffler +1
In the present paper we study the problem of existence of honest and adaptive confidence sets for matrix completion. We consider two statistical models: the trace regression model…