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V-D4RL
V-D4RL provides pixel-based analogues of the popular D4RL benchmarking tasks, derived from the dm_control suite, along with natural extensions of two state-of-the-art online pixel-based continuous control algorithms, DrQ-v2 and DreamerV2, to the offline setting. For further details, please see the paper:
Challenges and Opportunities in Offline Reinforcement Learning from Visual Observations; Cong Lu*, Philip J. Ball*, Tim G. J. Rudner, Jack Parker-Holder, Michael A. Osborne, Yee Whye Teh.
Benchmarks
The V-D4RL datasets can be found in this repository under vd4rl. They may also be found on Google Drive. These must be downloaded before running the code. Assuming the data is stored under vd4rl_data, the file structure is:
vd4rl_data
└───main
│ └───walker_walk
│ │ └───random
│ │ │ └───64px
│ │ │ └───84px
│ │ └───medium_replay
│ │ │ ...
│ └───cheetah_run
│ │ ...
│ └───humanoid_walk
│ │ ...
└───distracting
│ ...
└───multitask
│ ...
Baselines
Environment Setup
Requirements are presented in conda environment files named conda_env.yml within each folder. The command to create the environment is:
conda env create -f conda_env.yml
Alternatively, dockerfiles are located under dockerfiles, replace <<USER_ID>> in the files with your own user ID from the command id -u.
V-D4RL Main Evaluation
Example run commands are given below, given an environment type and dataset identifier:
ENVNAME=walker_walk # choice in ['walker_walk', 'cheetah_run', 'humanoid_walk']
TYPE=random # choice in ['random', 'medium_replay', 'medium', 'medium_expert', 'expert']
Offline DV2
python offlinedv2/train_offline.py --configs dmc_vision --task dmc_${ENVNAME} --offline_dir vd4rl_data/main/${ENV_NAME}/${TYPE}/64px --offline_penalty_type meandis --offline_lmbd_cons 10 --seed 0
DrQ+BC
python drqbc/train.py task_name=offline_${ENVNAME}_${TYPE} offline_dir=vd4rl_data/main/${ENV_NAME}/${TYPE}/84px nstep=3 seed=0
DrQ+CQL
python drqbc/train.py task_name=offline_${ENVNAME}_${TYPE} offline_dir=vd4rl_data/main/${ENV_NAME}/${TYPE}/84px algo=cql cql_importance_sample=false min_q_weight=10 seed=0
BC
python drqbc/train.py task_name=offline_${ENVNAME}_${TYPE} offline_dir=vd4rl_data/main/${ENV_NAME}/${TYPE}/84px algo=bc seed=0
Distracted and Multitask Experiments
To run the distracted and multitask experiments, it suffices to change the offline directory passed to the commands above.
Note on data collection and format
We follow the image sizes and dataset format of each algorithm's native codebase.
The means that Offline DV2 uses *.npz files with 64px images to store the offline data, whereas DrQ+BC uses *.hdf5 with 84px images.
The data collection procedure is detailed in Appendix B of our paper, and we provide conversion scripts in conversion_scripts.
For the original SAC policies to generate the data see here.
See here for distracted/multitask variants.
We used seed=0 for all data generation.
Acknowledgements
V-D4RL builds upon many works and open-source codebases in both offline reinforcement learning and online pixel-based continuous control. We would like to particularly thank the authors of:
Contact
Please contact Cong Lu or Philip Ball for any queries. We welcome any suggestions or contributions!
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