Europe/Lisbon — Online

Simon Du

Simon Du, University of Washington
Provable Representation Learning

Representation learning has been widely used in many applications. In this talk, I will present our work, which uncovers when and why representation learning provably improves the sample efficiency, from a statistical learning point of view. I will show

  1. the existence of a good representation among all tasks, and
  2. the diversity of tasks are key conditions that permit improved statistical efficiency via multi-task representation learning.

These conditions provably improve the sample efficiency for functions with certain complexity measures as the representation. If time permits, I will also talk about leveraging the theoretical insights to improve practical performance.

Video

Additional file

Du slides.pdf