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Exponential Tail Local Rademacher Complexity Risk Bounds Without the Bernstein Condition
Varun Kanade, Patrick Rebeschini, Tomas Vaskevicius
The local Rademacher complexity framework is one of the most successful general-purpose toolboxes for establishing sharp excess risk bounds for statistical estimators based on the…
math.ST2020
Suboptimality of Constrained Least Squares and Improvements via Non-Linear Predictors
Tomas Vaškevičius, Nikita Zhivotovskiy
We study the problem of predicting as well as the best linear predictor in a bounded Euclidean ball with respect to the squared loss. When only boundedness of the data generating d…