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Structured State Space Models for In-Context Reinforcement Learning

At NeurIPS 2023

Chris Lu, Yannick Schroecker, Albert Gu, Emilio Parisotto, Jakob Foerster, Satinder Singh, Feryal Behbahani

This is a PureJAX version of our NeurIPS 2023 paper "Structured State Space Models for In-Context Reinforcement Learning". We evaluate and modify S4-like models for reinforcement learning. Furthermore, we re-implemented POPGym in pure JAX, speeding up future research in partially-observed RL.

If you use this repository, please cite:

@article{lu2023structured,
  title={Structured State Space Models for In-Context Reinforcement Learning},
  author={Lu, Chris and Schroecker, Yannick and Gu, Albert and Parisotto, Emilio and Foerster, Jakob and Singh, Satinder and Behbahani, Feryal},
  journal={arXiv preprint arXiv:2303.03982},
  year={2023}
}

Installation

Install dependencies using the requirements.txt file:

pip install -r requirements.txt

In order to use JAX on your accelerators, you can find more details in the JAX documentation.

pip install "jax[cuda12_pip]==0.4.7" -f https://storage.googleapis.com/jax-releases/jax_cuda_releases.html

Example Usage

python3 run_popgym.py --num-runs 1 --env BattleshipEasy --arch s5

TODOs:

I expect to complete these by 4 November.

  • Releasing more thorough tests for each environment

  • More thorough benchmarks for speedups

References and Acknowledgments

The code implementations here are heavily inspired by:

If you use this repository, please cite:

@article{lu2023structured,
  title={Structured State Space Models for In-Context Reinforcement Learning},
  author={Lu, Chris and Schroecker, Yannick and Gu, Albert and Parisotto, Emilio and Foerster, Jakob and Singh, Satinder and Behbahani, Feryal},
  journal={arXiv preprint arXiv:2303.03982},
  year={2023}
}

If you use the relevant components from above, please also cite them. This includes:

S5

@inproceedings{
smith2023simplified,
title={Simplified State Space Layers for Sequence Modeling},
author={Jimmy T.H. Smith and Andrew Warrington and Scott Linderman},
booktitle={The Eleventh International Conference on Learning Representations },
year={2023},
url={https://openreview.net/forum?id=Ai8Hw3AXqks}
}

POPGym

@inproceedings{
morad2023popgym,
title={{POPG}ym: Benchmarking Partially Observable Reinforcement Learning},
author={Steven Morad and Ryan Kortvelesy and Matteo Bettini and Stephan Liwicki and Amanda Prorok},
booktitle={The Eleventh International Conference on Learning Representations},
year={2023},
url={https://openreview.net/forum?id=chDrutUTs0K}
}

Gymnax

@software{gymnax2022github,
  author = {Robert Tjarko Lange},
  title = {{gymnax}: A {JAX}-based Reinforcement Learning Environment Library},
  url = {http://github.com/RobertTLange/gymnax},
  version = {0.0.4},
  year = {2022},
}

PureJaxRL

@article{lu2022discovered,
    title={Discovered policy optimisation},
    author={Lu, Chris and Kuba, Jakub and Letcher, Alistair and Metz, Luke and Schroeder de Witt, Christian and Foerster, Jakob},
    journal={Advances in Neural Information Processing Systems},
    volume={35},
    pages={16455--16468},
    year={2022}
}