N. Stepanova

activity

20092016

most citedA note on badly approximable linear forms on manifolds

3 citations · 3 across the 5 of their papers we have counts for

collaborators

Showing 2015 · math.STShow all

2 papers · 2 filters

math.ST2015

Variable selection with Hamming loss

Cristina Butucea, Mohamed Ndaoud, Natalia A. Stepanova +1

We derive non-asymptotic bounds for the minimax risk of variable selection under expected Hamming loss in the Gaussian mean model in $R^{d}$ for classes of $s$ -sparse vector…

math.ST2015

Adaptive variable selection in nonparametric sparse additive models

Cristina Butucea, Natalia Stepanova

We consider the problem of recovery of an unknown multivariate signal $f$ observed in a $d$ -dimensional Gaussian white noise model of intensity $ε$ . We assume that $f$ be…