Multitask Reinforcement Learning by Optimizing Neural PathwaysDownload PDF

Published: 01 Feb 2023, Last Modified: 13 Feb 2023Submitted to ICLR 2023Readers: Everyone
Keywords: Multitask Learning, Online Reinforcement Learning, Offline Reinforcement Learning, Neural Pathways
TL;DR: Proposing a novel multitask learning framework using task-specific neural pathways for online and offline reinforcement learning.
Abstract: Reinforcement learning (RL) algorithms have achieved great success in learning specific tasks, as evidenced by examples such as AlphaGo or fusion control. However, it is still difficult for an RL agent to learn how to solve multiple tasks. In this paper, we propose a novel multitask learning framework, in which multiple specialized pathways through a single network are trained simultaneously, with each pathway focusing on a single task. We show that this approach achieves competitive performance with existing multitask RL methods, while using only 5% of the number of neurons per task. We demonstrate empirically the success of our approach on several continuous control tasks, in both online and offline training.
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