Samory Kpotufe

Nuances in Margin Conditions Determine Gains in Active Learning

2021 · arXiv (Cornell University)

We consider nonparametric classification with smooth regression functions, where it is well known that notions of margin in $E[Y|X]$ determine fast or slow rates in both active and passive learning. Here we elucidate a striking …

Mixed-Sample SGD: an End-to-end Analysis of Supervised Transfer Learning

2025

Theoretical works on supervised transfer learning (STL) -- where the learner has access to labeled samples from both source and target distributions -- have for the most part focused on statistical aspects of the problem, …