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Sokbae Lee

4 accepted papers

2025

Prediction Risk and Estimation Risk of the Ridgeless Least Squares Estimator under General Assumptions on Regression Errors

ICLR 2025poster

In recent years, there has been a significant growth in research focusing on minimum $\ell_2$ norm (ridgeless) interpolation least squares estimators. However, the majority of these analyses have been limited to an unrealistic regression error structure, assuming independent and identically distribu…

Cited by 0SourcePDFScholar
2023

Average Adjusted Association: Efficient Estimation with High Dimensional Confounders

AISTATS 2023poster

The log odds ratio is a well-established metric for evaluating the association between binary outcome and exposure variables. Despite its widespread use, there has been limited discussion on how to summarize the log odds ratio as a function of confounders through averaging. To address this issue, we…

2022

Fast and Robust Online Inference with Stochastic Gradient Descent via Random Scaling

AAAI 2022technical

We develop a new method of online inference for a vector of parameters estimated by the Polyak-Ruppert averaging procedure of stochastic gradient descent (SGD) algorithms. We leverage insights from time series regression in econometrics and construct asymptotically pivotal statistics via random scal…

Cited by 41SourcePDFScholar