2 citations · 4 across the 8 of their papers we have counts for
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math.ST2022★ 1 cited
Sparse Signal Detection in Heteroscedastic Gaussian Sequence Models: Sharp Minimax Rates
Julien Chhor, Rajarshi Mukherjee, Subhabrata Sen
Given a heterogeneous Gaussian sequence model with unknown mean and known covariance matrix , we study the signal det…
math.ST2022
Benign overfitting and adaptive nonparametric regression
Julien Chhor, Suzanne Sigalla, Alexandre B. Tsybakov
In the nonparametric regression setting, we construct an estimator which is a continuous function interpolating the data points with high probability, while attaining minimax optim…
math.ST2022★ 2 cited
Robust Estimation of Discrete Distributions under Local Differential Privacy
Julien Chhor, Flore Sentenac
Although robust learning and local differential privacy are both widely studied fields of research, combining the two settings is just starting to be explored. We consider the prob…