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📄 Tackling Non-Stationarity in Reinforcement Learning via Causal-Origin Representation

The official repository of our [Paper] at ICML 2024.

COREP

COREP primarily employs a dual-GAT structure with a guided updating mechanism to learn a stable graph representation for states, termed as causal origin representation. By leveraging this representation, the learned policy exhibits resilience to non-stationarity. The overall framework of COREP is illustrated in the above figure.

Install

  1. Clone this repository and navigate to LLaVA folder
git clone https://github.com/PKU-RL/COREP.git
cd COREP
  1. Install Package
conda create -n COREP python=3.10 -y
conda activate COREP
pip install --upgrade pip
pip install -r requirements.txt
  1. Install additional packages. We use the dmc2gym library to convert the deepmind control environment into an openai gym interface.
pip install -e dmc2gym

Running experiments

To evaluate COREP on the deepmind control environment, run

python main.py --env-type <env_name>

which will use hyperparameters from config/args_<env_name>.py.

To reproduce the results in the paper, run the following commands:

python main.py --env-type cartpole_swingup
python main.py --env-type reacher_easy
python main.py --env-type reacher_hard
python main.py --env-type cup_catch
python main.py --env-type cheetah_run
python main.py --env-type hopper_stand
python main.py --env-type swimmer_swimmer6
python main.py --env-type swimmer_swimmer15
python main.py --env-type finger_spin
python main.py --env-type walker_walk
python main.py --env-type fish_upright
python main.py --env-type quadruped_walk

Results

The results will be saved at ./logs, to view the results on tensorboard run

tensorboard --logdir ./logs

Acknowledgements

Parts of the code are based on the VariBAD repository, which we have modified to implement COREP.

Citation

If you find our work useful in your research and would like to cite our project, please use the following citation:

@InProceedings{zhang2024tackling,
  title={Tackling Non-Stationarity in Reinforcement Learning via Causal-Origin Representation},
  author={Zhang, Wanpeng and Li, Yilin and Yang, Boyu and Lu, Zongqing},
  booktitle={Proceedings of the 41st International Conference on Machine Learning},
  pages={59264--59288},
  year={2024},
  volume={235},
  publisher={PMLR}
}