RIDE: Rewarding Impact-Driven Exploration for Procedurally-Generated Environments

This is an implementation of the method proposed in

RIDE: Rewarding Impact-Driven Exploration for Procedurally-Generated Environments

by Roberta Raileanu and Tim Rocktäschel, published at ICLR 2020.

We propose a novel type of intrinsic reward which encourges the agent to take actions that result in significant changes to its representation of the environment state.

The code includes all the baselines and ablations used in the paper.

The code was also used to run the baselines in Learning with AMIGO: Adversarially Motivated Intrinsic Goals. See the associated repo for instructions on how to reproduce the results from that paper.

Citation

If you use this code in your own work, please cite our paper:

@inproceedings{
  Raileanu2020RIDE:,
  title={{RIDE: Rewarding Impact-Driven Exploration for Procedurally-Generated Environments}},
  author={Roberta Raileanu and Tim Rockt{\"{a}}schel},
  booktitle={International Conference on Learning Representations},
  year={2020},
  url={https://openreview.net/forum?id=rkg-TJBFPB}
}

Installation

# create a new conda environment
conda create -n ride python=3.7
conda activate ride 

# install dependencies
git clone git@github.com:facebookresearch/impact-driven-exploration.git
cd impact-driven-exploration
pip install -r requirements.txt

# install MiniGrid
cd gym-minigrid
python setup.py install

Train RIDE on MiniGrid

cd impact-driven-exploration

OMP_NUM_THREADS=1 python main.py --model ride --env MiniGrid-MultiRoom-N7-S4-v0 --total_frames 30000000 --intrinsic_reward_coef 0.1 --entropy_cost 0.0005

OMP_NUM_THREADS=1 python main.py --model ride --env MiniGrid-MultiRoomNoisyTV-N7-S4-v0 --total_frames 30000000 --intrinsic_reward_coef 0.1 --entropy_cost 0.0005

OMP_NUM_THREADS=1 python main.py --model ride --env MiniGrid-MultiRoom-N7-S8-v0 --total_frames 30000000 --intrinsic_reward_coef 0.5 --entropy_cost 0.001

OMP_NUM_THREADS=1 python main.py --model ride --env MiniGrid-MultiRoom-N10-S4-v0 --total_frames 30000000 --intrinsic_reward_coef 0.1 --entropy_cost 0.0005

OMP_NUM_THREADS=1 python main.py --model ride --env MiniGrid-KeyCorridor-S3-R3-v0 --total_frames 30000000 --intrinsic_reward_coef 0.1 --entropy_cost 0.0005

OMP_NUM_THREADS=1 python main.py --model ride --env MiniGrid-ObstructedMaze-2Dlh-v0 --total_frames 100000000 --intrinsic_reward_coef 0.5 --entropy_cost 0.001

OMP_NUM_THREADS=1 python main.py --model ride --env MiniGrid-MultiRoom-N10-S10-v0 --total_frames 100000000 --intrinsic_reward_coef 0.5 --entropy_cost 0.001

OMP_NUM_THREADS=1 python main.py --model ride --env MiniGrid-MultiRoom-N12-S10-v0 --total_frames 100000000 --intrinsic_reward_coef 0.5 --entropy_cost 0.001

To train RIDE on the other MiniGrid environments used in our paper, replace the --env argument above with each of the following:

MiniGrid-MultiRoom-N7-S4-v0
MiniGrid-MultiRoomNoisyTV-N7-S4-v0
MiniGrid-MultiRoom-N7-S8-v0
MiniGrid-MultiRoom-N10-S4-v0
MiniGrid-MultiRoom-N10-S10-v0
MiniGrid-MultiRoom-N12-S10-v0
MiniGrid-ObstructedMaze-2Dlh-v0 
MiniGrid-KeyCorridorS3R3-v0

Make sure to use the best hyperparameters for each environment, as listed in the paper.

To run different seeds for a model, change the --run_id argument.

Overview of RIDE

Results on MiniGrid

Analysis of RIDE

Acknowledgements

Our vanilla RL algorithm is based on Torchbeast, which is an open source implementation of IMPALA.

License

This code is under the CC-BY-NC 4.0 (Attribution-NonCommercial 4.0 International) license.