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08/28/2023
Sharper dimension-free bounds on the Frobenius distance between sample covariance and its expectation
We study properties of a sample covariance estimate Σ= (𝐗_1 𝐗_1^⊤ + … + ...
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07/26/2023
Optimal Estimation in Mixed-Membership Stochastic Block Models
Community detection is one of the most critical problems in modern netwo...
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09/10/2022
Octopuses in the Boolean cube: families with pairwise small intersections, part I
Let ℱ_1, …, ℱ_ℓ be families of subsets of {1, …, n}. Suppose that for di...
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02/07/2022