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20212026
most citedThe Optimality of Polynomial Regression for Agnostic Learning under Gaussian Marginals

3 citations · 6 across the 21 of their papers we have counts for

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5 papers · 1 filter

cs.LG2023

Clustering Mixtures of Bounded Covariance Distributions Under Optimal Separation

Ilias Diakonikolas, Daniel M. Kane, Jasper C. H. Lee +1

We study the clustering problem for mixtures of bounded covariance distributions, under a fine-grained separation assumption. Specifically, given samples from a -component mixtu…

cs.DS2023

Near-Optimal Algorithms for Gaussians with Huber Contamination: Mean Estimation and Linear Regression

Ilias Diakonikolas, Daniel M. Kane, Ankit Pensia +1

We study the fundamental problems of Gaussian mean estimation and linear regression with Gaussian covariates in the presence of Huber contamination. Our main contribution is the de…

cs.LG2023

SQ Lower Bounds for Learning Bounded Covariance GMMs

Ilias Diakonikolas, Daniel M. Kane, Thanasis Pittas +1

We study the complexity of learning mixtures of separated Gaussians with common unknown bounded covariance matrix. Specifically, we focus on learning Gaussian mixture models (GMMs)…

cs.LG2023

Nearly-Linear Time and Streaming Algorithms for Outlier-Robust PCA

Ilias Diakonikolas, Daniel M. Kane, Ankit Pensia +1

We study principal component analysis (PCA), where given a dataset in from a distribution, the task is to find a unit vector that approximately maximizes the var…

cs.DS2023

A Spectral Algorithm for List-Decodable Covariance Estimation in Relative Frobenius Norm

Ilias Diakonikolas, Daniel M. Kane, Jasper C. H. Lee +2

We study the problem of list-decodable Gaussian covariance estimation. Given a multiset of points in such that an unknown fraction of points in ar…