Policy Gradient Bayesian Robust Optimization for Imitation Learning

no code implementations • 11 Jun 2021 • Zaynah Javed, Daniel S. Brown, Satvik Sharma, Jerry Zhu, Ashwin Balakrishna, Marek Petrik, Anca D. Dragan, Ken Goldberg

Results suggest that PG-BROIL can produce a family of behaviors ranging from risk-neutral to risk-averse and outperforms state-of-the-art imitation learning algorithms when learning from ambiguous demonstrations by hedging against uncertainty, rather than seeking to uniquely identify the demonstrator's reward function.

Imitation Learning

BACKDOORL: Backdoor Attack against Competitive Reinforcement Learning

no code implementations • 2 May 2021 • Lun Wang, Zaynah Javed, Xian Wu, Wenbo Guo, Xinyu Xing, Dawn Song

Recent research has confirmed the feasibility of backdoor attacks in deep reinforcement learning (RL) systems.

Atari Games Backdoor Attack +2