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02/21/2023
Robust Mean Estimation Without a Mean: Dimension-Independent Error in Polynomial Time for Symmetric Distributions
In this work, we study the problem of robustly estimating the mean/locat...
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01/11/2023
Private estimation algorithms for stochastic block models and mixture models
We introduce general tools for designing efficient private estimation al...
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07/28/2022
Hardness of Agnostically Learning Halfspaces from Worst-Case Lattice Problems
We show hardness of improperly learning halfspaces in the agnostic model...
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02/14/2022
Fast algorithm for overcomplete order-3 tensor decomposition
We develop the first fast spectral algorithm to decompose a random third...
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01/24/2022
Optimal SQ Lower Bounds for Learning Halfspaces with Massart Noise
We give tight statistical query (SQ) lower bounds for learnining halfspa...
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11/04/2021
Consistent Estimation for PCA and Sparse Regression with Oblivious Outliers
We develop machinery to design efficiently computable and consistent est...
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01/05/2021
SoS Degree Reduction with Applications to Clustering and Robust Moment Estimation
We develop a general framework to significantly reduce the degree of sum...
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04/05/2018