125 citations · 166 across the 17 of their papers we have counts for
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math.ST2015
Estimation of matrices with row sparsity
O. Klopp, A. B. Tsybakov
An increasing number of applications is concerned with recovering a sparse matrix from noisy observations. In this paper, we consider the setting where each row of the unknown matr…
math.ST2015
Oracle inequalities for network models and sparse graphon estimation
Olga Klopp, Alexandre B. Tsybakov, Nicolas Verzelen
Inhomogeneous random graph models encompass many network models such as stochastic block models and latent position models. We consider the problem of statistical estimation of the…
math.ST2015
Matrix completion by singular value thresholding: sharp bounds
Olga Klopp
We consider the matrix completion problem where the aim is to esti-mate a large data matrix for which only a relatively small random subset of its entries is observed. Quite popula…