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Author

Pascal Fua

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#artificial intelligence Preprint Oct 2026

Adaptive Expert Guidance for Efficient On-Policy Reinforcement Learning

With massively parallel simulation, on-policy Reinforcement Learning methods such as PPO have become standard in many domains. However, learning from scratch is sample-inefficient and fails to exploit the potential existence of a suboptimal expert, such as a heuristic, a model-based controller, or a policy trained on a...

D. Affinita, Ming-Jing Xu, Rudolf Reiter et al. · 0 citations
#artificial intelligence Preprint Sep 2026

PACT: End-to-End Learning of Human Pose, Contacts, and Forces from Video

Human motion, environmental contacts, and interaction forces are governed by common physical laws, yet existing approaches typically separate visual pose reconstruction from contact and force estimation. This separation limits joint reasoning and can propagate errors between stages. We introduce PACT, an end-to-end mod...

Rikhat Akizhanov, Yang-Song Zhang, Nikolai Kaliazin et al. · 0 citations

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