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Artificial Intelligence for Prosthetics - challenge solutions

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arxiv 1902.02441 v1 pith:3LV56O3T submitted 2019-02-07 cs.LG cs.ROstat.ML

Artificial Intelligence for Prosthetics - challenge solutions

classification cs.LG cs.ROstat.ML
keywords challengelearningsolutionsalgorithmsartificialdescribeintelligenceparticipants
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In the NeurIPS 2018 Artificial Intelligence for Prosthetics challenge, participants were tasked with building a controller for a musculoskeletal model with a goal of matching a given time-varying velocity vector. Top participants were invited to describe their algorithms. In this work, we describe the challenge and present thirteen solutions that used deep reinforcement learning approaches. Many solutions use similar relaxations and heuristics, such as reward shaping, frame skipping, discretization of the action space, symmetry, and policy blending. However, each team implemented different modifications of the known algorithms by, for example, dividing the task into subtasks, learning low-level control, or by incorporating expert knowledge and using imitation learning.

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