Deep RL at Scale: Sorting Waste in Office Buildings with a Fleet of Mobile Manipulators

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Abstract

We describe a system for deep reinforcement learning of robotic manipulation skills applied to a large-scale realworld task: sorting recyclables and trash in office buildings.Real-world deployment of deep RL policies requires not only effective training algorithms, but the ability to bootstrap realworld training and enable broad generalization.To this end, our system combines scalable deep RL from real-world data with bootstrapping from training in simulation, and incorporates auxiliary inputs from existing computer vision systems as a way to boost generalization to novel objects, while retaining the benefits of end-to-end training.We analyze the tradeoffs of different design decisions in our system, and present a large-scale empirical validation that includes training on real-world data gathered over the course of 24 months of experimentation, across a fleet of 23 robots in three office buildings, with a total training set of 9527 hours of robotic experience.Our final validation also consists of 4800 evaluation trials across 240 waste station configurations, in order to evaluate in detail the impact of the design decisions in our system, the scaling effects of including more real-world data, and the performance of the method on novel objects.The projects website and videos can be found at rl-at-scale.github.io.

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