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How to Run

The running scripts are provided in scripts/cocoop/. Make sure you change the path in DATA and run the commands under CoOp/scripts/cocoop/.

Generalization From Base to New Classes

This corresponds to the experiments in Section 4.1, i.e., Table 1.

You will need both scripts/cocoop/base2new_train.sh and scripts/cocoop/base2new_test.sh. The former trains a model on bash classes while the latter evaluates the trained model on new classes. Both scripts have two input arguments, i.e., DATASET and SEED.

DATASET takes as input a dataset name, like imagenet or caltech101. The valid names are the files' names in CoOp/configs/datasets/.

Below we provide an example on how to evaluate the model on ImageNet.

# seed=1
bash base2new_train.sh imagenet 1
bash base2new_test.sh imagenet 1

# seed=2
bash base2new_train.sh imagenet 2
bash base2new_test.sh imagenet 2

# seed=3
bash base2new_train.sh imagenet 3
bash base2new_test.sh imagenet 3

When the evaluation is done, you can use parse_test_res.py to automatically calculate the average results. For instance, after you finish the evaluation (including base2new_train.sh and base2new_test.sh) on ImageNet using the aforementioned commands, you would get

output
|–– base2new/
|   |–– test_new/
|   |   |–– imagenet/
|   |   |   |–– shots_16/
|   |   |   |   |–– CoCoOp/
|   |   |   |   |   |–– vit_b16_c4_ep10_batch1_ctxv1/
|   |   |   |   |   |   |–– seed1/
|   |   |   |   |   |   |–– seed2/
|   |   |   |   |   |   |–– seed3/
|   |–– train_base/
|   |   |–– imagenet/
|   |   |   |–– shots_16/
|   |   |   |   |–– CoCoOp/
|   |   |   |   |   |–– vit_b16_c4_ep10_batch1_ctxv1/
|   |   |   |   |   |   |–– seed1/
|   |   |   |   |   |   |–– seed2/
|   |   |   |   |   |   |–– seed3/

Then, to get the average performance on the base classes, run

python parse_test_res.py output/base2new/train_base/imagenet/shots_16/CoCoOp/vit_b16_c4_ep10_batch1_ctxv1

To get the average performance on the new classes, run

python parse_test_res.py output/base2new/test_new/imagenet/shots_16/CoCoOp/vit_b16_c4_ep10_batch1_ctxv1 --test-log

Cross-Dataset Transfer

This corresponds to the experiments in Section 4.2, i.e., Table 2.

The relevant scripts are scripts/cocoop/xd_train.sh and scripts/cocoop/xd_test.sh where the DATASET variable is set to the default, namely imagenet. To train the model, run

# seed=1
bash xd_train.sh 1

# seed=2
bash xd_train.sh 2

# seed=3
bash xd_train.sh 3

Then, you evaluate the model on other datasets, e.g.,

for SEED in 1 2 3
do
    bash xd_test.sh caltech101 ${SEED}
    bash xd_test.sh oxford_pets ${SEED}
    bash xd_test.sh stanford_cars ${SEED}
done

Domain Generalization

This corresponds to the experiments in Section 4.3, i.e., Table 3.

The steps are similar to those discussed in "Cross-Dataset Transfer" except you evaluate the model on the variants of ImageNet, i.e., imagenetv2, imagenet_sketch, imagenet_a and imagenet_r.