Talk from Archives

Learning Robustly from Multiple Sources

12.06.2023 16:45 - 17:45

 

We study the problem of learning from multiple untrusted data sources, a scenario of increasing practical relevance given the recent emergence of crowdsourcing and collaborative learning paradigms. Specifically, we analyze the situation in which a learning system obtains datasets from multiple sources, some of which might be biased or even adversarially perturbed. It is known that in the single-source case, an adversary with the power to corrupt a fixed fraction of the training data can prevent "learnability", that is, even in the limit of infinitely much training data, no learning system can approach the optimal test error. I present recent work with Nikola Konstantinov in which we show that, surprisingly, the same is not true in the multi-source setting, where the adversary can arbitrarily corrupt a fixed fraction of the data sources.

Underlying paper: https://cvml.ist.ac.at/papers/konstantinov-icml2020.pdf

Personal website of Christoph Lampert

 

The talk also can be joined online via our ZOOM MEETING

Meeting room opens at: June 12, 2023, 4.30 pm Vienna

Meeting ID: 662 5111 2914

Password: 013246

 

 

Location:
HS 7 OMP1 (#1.303)