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James Weimer

4 accepted papers

2024

Memory-Consistent Neural Networks for Imitation Learning

ICLR 2024poster

Imitation learning considerably simplifies policy synthesis compared to alternative approaches by exploiting access to expert demonstrations. For such imitation policies, errors away from the training samples are particularly critical. Even rare slip-ups in the policy action outputs can compound qui…

Cited by 11SourcePDFScholar
2022

Exploring with Sticky Mittens: Reinforcement Learning with Expert Interventions via Option Templates

CoRL 2022poster

Long horizon robot learning tasks with sparse rewards pose a significant challenge for current reinforcement learning algorithms. A key feature enabling humans to learn challenging control tasks is that they often receive expert intervention that enables them to understand the high-level structure o…

Cited by 4SourcecodeScholar
2021

Improving Classifier Confidence using Lossy Label-Invariant Transformations

AISTATS 2021poster

Providing reliable model uncertainty estimates is imperative to enabling robust decision making by autonomous agents and humans alike. While recently there have been significant advances in confidence calibration for trained models, examples with poor calibration persist in most calibrated models. C…

Cited by 10SourcePDFScholar
2020

Calibrated Prediction with Covariate Shift via Unsupervised Domain Adaptation

AISTATS 2020poster

Reliable uncertainty estimates are an important tool for helping autonomous agents or human decision makers understand and lever-age predictive models. However, existing approaches to estimating uncertainty largely ignore the possibility of covariate shift—i.e.,where the real-world data distribution…

Cited by 68SourcePDFScholar