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[R] Hieros: Hierarchical Imagination on Structured State Space Sequence World Models
Jan. 5, 2024, 10:04 p.m. | /u/APaperADay
Machine Learning www.reddit.com
**arXiv**: [https://arxiv.org/abs/2310.05167](https://arxiv.org/abs/2310.05167)
**Code**: [https://github.com/Snagnar/Hieros](https://github.com/Snagnar/Hieros)
**Abstract**:
>One of the biggest challenges to modern deep reinforcement learning (DRL) algorithms is sample efficiency. Many approaches learn a world model in order to train an agent entirely in imagination, eliminating the need for direct environment interaction during training. However, these methods often suffer from either a lack of imagination accuracy, exploration capabilities, or runtime efficiency. We propose **Hieros**, a hierarchical policy that learns time abstracted world representations and imagines trajectories at multiple …
abstract accuracy agent algorithms capabilities challenges efficiency environment exploration imagination learn machinelearning modern reinforcement reinforcement learning sample train training world
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