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Self-Attentive Credit Assignment for Transfer in Reinforcement Learning

Proc. of IJCAI 2020 (to appear)

Abstract

The ability to transfer representations to novel environments and tasks is a sensible desiderata for general learning agents. Despite the apparent promises, transfer in Reinforcement Learning is still an open and under-exploited research area. In this paper, we suggest that credit assignment, regarded as a supervised learning task, could be used to accomplish transfer. Our contribution is twofold, we introduce a new credit assignment mechanism based on self-attention, and show that the learned credit can be transferred to in-domain and out-of-domain scenarios.

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