← Search

Joseph D Viviano

2 accepted papers

2025

Action abstractions for amortized sampling

ICLR 2025poster

As trajectories sampled by policies used by reinforcement learning (RL) and generative flow networks (GFlowNets) grow longer, credit assignment and exploration become more challenging, and the long planning horizon hinders mode discovery and generalization. The challenge is particularly pronounced i…

Cited by 0SourcePDFScholar
2021

Saliency is a Possible Red Herring When Diagnosing Poor Generalization

ICLR 2021poster

Poor generalization is one symptom of models that learn to predict target variables using spuriously-correlated image features present only in the training distribution instead of the true image features that denote a class. It is often thought that this can be diagnosed visually using attribution (…