122 citations · 384 across the 38 of their papers we have counts for
40 papers · 1 filter
Csiszár indices and interpolating copulas
Cristina Butucea, Jean-François Delmas, Anne Dutfoy +1
We study various properties of -divergences and Csiszár indices between two probability distributions in very general setups for the convex function and for the probability…
Nonparametric spectral density estimation using interactive mechanisms under local differential privacy
Cristina Butucea, Karolina Klockmann, Tatyana Krivobokova
We study the problem of estimating the spectral density of a centered stationary Gaussian time series under local differential privacy constraints. Specifically, we propose new int…
Asymptotic Equivalence of Locally Stationary Processes and Bivariate White Noise
Cristina Butucea, Alexander Meister, Angelika Rohde
We consider a general class of statistical experiments, in which an -dimensional centered Gaussian random variable is observed and its covariance matrix is the parameter of inte…
Two-sided Matrix Regression
Nayel Bettache, Cristina Butucea
The two-sided matrix regression model aims at predicting by taking into account both linear links between column features of , via the unknown matrix …
Off-the-grid prediction and testing for linear combination of translated features
Cristina Butucea, Jean-François Delmas, Anne Dutfoy +1
We consider a model where a signal (discrete or continuous) is observed with an additive Gaussian noise process. The signal is issued from a linear combination of a finite but incr…
Variable selection, monotone likelihood ratio and group sparsity
Cristina Butucea, Enno Mammen, Mohamed Ndaoud +1
In the pivotal variable selection problem, we derive the exact non-asymptotic minimax selector over the class of all -sparse vectors, which is also the Bayes selector with respe…