Brain-Like Replay Naturally Emerges in Reinforcement Learning Agents

ICLR 2025 Conference Submission13439 Authors

28 Sept 2024 (modified: 13 Oct 2024)ICLR 2025 Conference SubmissionEveryoneRevisionsBibTeXCC BY 4.0
Keywords: reinforcement learning, replay, neuroscience
TL;DR: We develop an reinforcement learning model to generate instrumental replay.
Abstract: Replay is a powerful strategy to promote learning in artificial intelligence and the brain. However, the conditions to generate it and its functional advantages have not been fully recognized. In this study, we develop a modular reinforcement learning model that could generate replay. We prove that replay generated in this way helps complete the task. We also analyze the information contained in the representation and provide a mechanism for how replay makes a difference. Our design avoids complex assumptions and enables replay to emerge naturally within a task-optimized paradigm. Our model also reproduces key phenomena observed in biological agents. This research explores the structural biases in modular ANN to generate replay and its potential utility in developing efficient RL.
Primary Area: applications to neuroscience & cognitive science
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Submission Number: 13439
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