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10/26/2020
Estimation of the l_2-norm and testing in sparse linear regression with unknown variance
We consider the related problems of estimating the l_2-norm and the squa...
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08/29/2019
Minimax optimal estimators for general additive functional estimation
In this paper, we observe a sparse mean vector through Gaussian noise an...
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05/28/2018
On estimation of nonsmooth functionals of sparse normal means
We study the problem of estimation of the value N_gamma(θ) = sum(i=1)^d ...
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04/17/2018
Minimax rate of testing in sparse linear regression
We consider the problem of testing the hypothesis that the parameter of ...
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02/12/2018
Some effects in adaptive robust estimation under sparsity
Adaptive estimation in the sparse mean model and in sparse regression ex...
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12/15/2017
Rate-optimal estimation of p-dimensional linear functionals in a sparse Gaussian model
We consider two problems of estimation in high-dimensional Gaussian mode...
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12/05/2017