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The TWIML AI Podcast (formerly This Week in Machine Learning & Artificial Intelligence) cover image

Inverse Reinforcement Learning Without RL with Gokul Swamy - #643

The TWIML AI Podcast (formerly This Week in Machine Learning & Artificial Intelligence)

NOTE

Learning safety constraints from demonstrations

In a workshop paper called 'Learning Shared Safety Constraints from Multitask Demonstrations', the authors discuss the challenge of inferring safety constraints from demonstrations. They propose using a comparison between optimal behavior and observed behavior to extract these constraints. However, they acknowledge the limitation of overgeneralizing these constraints. To address this, they suggest aggregating data from various tasks to avoid becoming overly conservative. They also mention the potential efficiency benefits of applying their algorithm in practice. The paper presents results from difficult offline RL benchmarks, including an impressive achievement of recovering the maze structure without the agent interacting with the walls directly.

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