Thanasis Pittas
20 papers · 2021–2026 · 4 venues · across top CS/AI venues
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Research topics
Keywords
mean estimation
(8)
robust statistics
(7)
statistical query
(7)
sample complexity
(7)
linear regression
(4)
huber contamination
(3)
gaussian mixture model
(3)
streaming algorithm
(3)
lower bound
(3)
gaussian distribution
(3)
sparse estimation
(3)
statistical query model
(2)
list-decodable learning
(2)
outlier detection
(2)
sparse mean estimation
(2)
statistical query lower bound
(2)
principal component analysis
(2)
robust estimation
(2)
missing data
(2)
high-dimensional statistics
(1)
Papers
A Quasi-Polynomial Time Mean Estimator Under Mean-Shift Contamination with Unknown Covariance
COLT 2026
High-Dimensional Gaussian Mean Estimation under Realizable Contamination
COLT 2026
Linear Regression under Missing or Corrupted Coordinates
COLT 2026
Batch List-Decodable Linear Regression via Higher Moments
ICML 2025
Efficient Multivariate Robust Mean Estimation Under Mean-Shift Contamination
ICML 2025
On Fine-Grained Distinct Element Estimation
ICML 2025
On Learning Parallel Pancakes with Mostly Uniform Weights
ICML 2025
Optimal Robust Estimation under Local and Global Corruptions: Stronger Adversary and Smaller Error
COLT 2025
Robust Sparse Estimation for Gaussians with Optimal Error under Huber Contamination
ICML 2024
Statistical Query Lower Bounds for Learning Truncated Gaussians
COLT 2024
A Spectral Algorithm for List-Decodable Covariance Estimation in Relative Frobenius Norm
NeurIPS 2023
Nearly-Linear Time and Streaming Algorithms for Outlier-Robust PCA
ICML 2023
Near-Optimal Algorithms for Gaussians with Huber Contamination: Mean Estimation and Linear Regression
NeurIPS 2023
SQ Lower Bounds for Learning Mixtures of Separated and Bounded Covariance Gaussians
COLT 2023
List-Decodable Sparse Mean Estimation via Difference-of-Pairs Filtering
NeurIPS 2022
Robust Sparse Mean Estimation via Sum of Squares
COLT 2022
Streaming Algorithms for High-Dimensional Robust Statistics
ICML 2022
Estimating the Number of Induced Subgraphs from Incomplete Data and Neighborhood Queries
AAAI 2021
Statistical Query Lower Bounds for List-Decodable Linear Regression
NeurIPS 2021
The Optimality of Polynomial Regression for Agnostic Learning under Gaussian Marginals in the SQ Model
COLT 2021