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Meta-Learning Transferable Parameterized Skills

2022-06-07 21:30:58
Haotian Fu, Shangqun Yu, Saket Tiwari, George Konidaris, Michael Littman

Abstract

We propose a novel parameterized skill-learning algorithm that aims to learn transferable parameterized skills and synthesize them into a new action space that supports efficient learning in long-horizon tasks. We first propose novel learning objectives -- trajectory-centric diversity and smoothness -- that allow an agent to meta-learn reusable parameterized skills. Our agent can use these learned skills to construct a temporally-extended parameterized-action Markov decision process, for which we propose a hierarchical actor-critic algorithm that aims to efficiently learn a high-level control policy with the learned skills. We empirically demonstrate that the proposed algorithms enable an agent to solve a complicated long-horizon obstacle-course environment.

Abstract (translated)

URL

https://arxiv.org/abs/2206.03597

PDF

https://arxiv.org/pdf/2206.03597.pdf


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