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DomainBed is a suite to test domain generalization algorithms

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Welcome to DomainBed

DomainBed is a PyTorch suite containing benchmark datasets and algorithms for domain generalization, as introduced in In Search of Lost Domain Generalization.

Current results

Result table

Full results for commit 7df6f06 in LaTeX format available here.

Available algorithms

The currently available algorithms are:

Send us a PR to add your algorithm! Our implementations use ResNet50 / ResNet18 networks (He et al., 2015) and the hyper-parameter grids described here.

Available datasets

The currently available datasets are:

Send us a PR to add your dataset! Any custom image dataset with folder structure dataset/domain/class/image.xyz is readily usable.

Available model selection criteria

Model selection criteria differ in what data is used to choose the best hyper-parameters for a given model:

  • IIDAccuracySelectionMethod: A random subset from the data of the training domains.
  • LeaveOneOutSelectionMethod: A random subset from the data of a held-out (not training, not testing) domain.
  • OracleSelectionMethod: A random subset from the data of the test domain.

Quick start

Download the datasets:

python -m domainbed.scripts.download \
       --data_dir=/my/datasets/path

Train a model:

python -m domainbed.scripts.train\
       --data_dir=/my/datasets/path\
       --algorithm ERM\
       --dataset RotatedMNIST

Launch a sweep:

python -m domainbed.scripts.sweep launch\
       --data_dir=/my/datasets/path\
       --output_dir=/my/sweep/output/path\
       --command_launcher MyLauncher

Here, MyLauncher is your cluster's command launcher, as implemented in command_launchers.py. At the time of writing, the entire sweep trains tens of thousands of models (all algorithms x all datasets x 3 independent trials x 20 random hyper-parameter choices). You can pass arguments to make the sweep smaller:

python -m domainbed.scripts.sweep launch\
       --data_dir=/my/datasets/path\
       --output_dir=/my/sweep/output/path\
       --command_launcher MyLauncher\
       --algorithms ERM DANN\
       --datasets RotatedMNIST VLCS\
       --n_hparams 5\
       --n_trials 1

After all jobs have either succeeded or failed, you can delete the data from failed jobs with python -m domainbed.scripts.sweep delete_incomplete and then re-launch them by running python -m domainbed.scripts.sweep launch again. Specify the same command-line arguments in all calls to sweep as you did the first time; this is how the sweep script knows which jobs were launched originally.

To view the results of your sweep:

python -m domainbed.scripts.collect_results\
       --input_dir=/my/sweep/output/path

Running unit tests

DomainBed includes some unit tests and end-to-end tests. While not exhaustive, but they are a good sanity-check. To run the tests:

python -m unittest discover

By default, this only runs tests which don't depend on a dataset directory. To run those tests as well:

DATA_DIR=/my/datasets/path python -m unittest discover

License

This source code is released under the MIT license, included here.

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