Bastien Germain van Delft

TTT++: When Does Self-Supervised Test-Time Training Fail or Thrive?

Test-time training (TTT) through self-supervised learning (SSL) is an emerging paradigm to tackle distributional shifts. Despite encouraging results, it remains unclear when this approach thrives or fails. In this work, we first provide an in-depth look at its limitations and show that TTT can possi…