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Online Relational Inference (ORI) for Evolving Multi-agent Interacting Systems

Example Image

This is an official implementation of ORI published at NeurIPS 2024. To the best of our knowledge, this is the first open-source framework on online learning of multi-agent relational inference. It mainly includes ORI with NRIr decoder and ORI with MPMr decoder for now. Additional experimental details such as prior offline methods will be provided soon.

Setup Environment

conda create -n ori python=3.8
conda activate ori
pip install torch==1.9.1+cu111 torchvision==0.10.1+cu111 -f https://download.pytorch.org/whl/torch_stable.html
pip install torchdiffeq==0.2.3
pip install torch_geometric==2.5.0
pip install torch-cluster==1.5.9 -f https://data.pyg.org/whl/torch-1.9.1+cu111.html
pip install torch-scatter==2.0.9 -f https://data.pyg.org/whl/torch-1.9.1+cu111.html
pip install torch-sparse==0.6.10 -f https://data.pyg.org/whl/torch-1.9.1+cu111.html
pip install tqdm==4.66.2
pip install matplotlib==3.0.3
pip install scikit-learn==1.3.2

Setup Datasets

Data generation is primarily done by data/generate_dataset.py. Note, current npy files in data/evolving... are just examples to show name format, not actual training data.

To generate evolving interaction datasets (fixed parameter and no switching dynamics):

python generate_dataset.py --simulation springs --mode interaction
python generate_dataset.py --simulation charged --mode interaction

To generate evolving interaction + parameter datasets (variable parameter and no switching dynamics):

python generate_dataset.py --simulation springs --mode parameter
python generate_dataset.py --simulation charged --mode parameter

To generate evolving interaction + dynamics datasets (fixed parameter and switching dynamics), evolving interaction datasets should be prepared first. If they are ready:

python generate_evolving_dynamics.py

Run Experiments

Please check os.environ["CUDA_VISIBLE_DEVICES"] in NRI/train.py and NRI-MPM/run.py to select device to run experiments.

Current args are set to enable Trajectory Mirror and AdaRelation by default. Ablation studies can be perfomed by turning off these arguments.

For NRI,

cd NRI
python train.py --suffix _springs # evolving interaction
python train.py --suffix _charged # evolving interaction
python train.py --suffix _springs_var # evolving interaction + parameter
python train.py --suffix _charged_var # evolving interaction + parameter
python train.py --suffix _mixed # evolving interaction + dynamics

For MPM,

cd NRI-MPM
python run.py --dyn springs # evolving interaction
python run.py --dyn charged # evolving interaction
python run.py --dyn springs_var # evolving interaction + parameter
python run.py --dyn charged_var # evolving interaction + parameter
python run.py --dyn mixed # evolving interaction + dynamics

Acknowledgements

This project is based on the following open-source projects. We thank their authors for making the source code publically available.