research
∙
05/22/2023
Covariance Estimation under Missing Observations and L_4-L_2 Moment Equivalence
We consider the problem of estimating the covariance matrix of a random ...
share
research
∙
05/17/2022
Covariance Estimation: Optimal Dimension-free Guarantees for Adversarial Corruption and Heavy Tails
We provide an estimator of the covariance matrix that achieves the optim...
research
∙
12/28/2021
Robust Sparse Recovery with Sparse Bernoulli matrices via Expanders
Sparse binary matrices are of great interest in the field of compressed ...
research
∙
02/02/2021
Community Detection with a Subsampled Semidefinite Program
Semidefinite programming is an important tool to tackle several problems...
research
∙
01/20/2021