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Federated Text-driven Prompt Generation for Vision-Language Models [ICLR 2024]

This is the companion code for the implementation of FedTPG proposed in the ICLR 2024 paper Federated Text-driven Prompt Generation for Vision-Language Models by Chen Qiu et al. The code allows the users to reproduce and extend the results reported in the study. Please cite the above paper when reporting, reproducing or extending the results.

Purpose of the project

This software is a research prototype, solely developed for and published as part of the publication. It will neither be maintained nor monitored in any way.

Approach

Existing prompt learning techniques replace hand-crafted text prompts with learned vectors that offer improvements on seen classes, but struggle to generalize to unseen classes. Our work addresses this challenge by proposing Federated Text-driven Prompt Generation (FedTPG), which learns a unified prompt generation network across multiple remote clients in a scalable manner. The prompt generation network is conditioned on task-related text input, thus is context-aware, making it suitable to generalize for both seen and unseen classes.

How to install

Manage your environment:

$ conda create -n fedtpg python=3.8
$ conda activate fedtpg
$ conda install pytorch==1.12.1 torchvision==0.13.1 cudatoolkit=10.2 -c pytorch
$ pip install -r requirements.txt

Prepare the data:

Please refer to CoOP for data preparation.

How to run

Training

Please run the command for training a model:

python Launch_FL.py --root YOUR_DATA_PATH --exp_name $1 --model_name $2 --num_cls_per_client NUM_CLASS_PER_CLIENT --avail_percent PERCENT_AVAIL_CLIENT_PER_ROUND

--exp_name specifies the class of experiment. It can be cross_cls for generalization to seen and unseen classes, cross_data for generalization to unseen datasets, or cross_domain for generalization to unseen data variants.

--model_name specifies the method. It can be fedtpg for our proposed FedTPG, coop for a federated variant of CoOp (and with --w 8 for KgCoOp), or vlp for a federated variant of Vision-Language prompt learning.

Evaluating the trained models

  1. run the command for testing a trained FedTPG model for the experiment cross_cls:
python Launch_FL.py --root YOUR_DATA_PATH --exp_name cross_cls --model_name fedtpg --eval-only --model-dir output/cross_cls/fedtpg/20_8/43/ --load-epoch 500
  1. run the command for testing a trained FedTPG model for the experiment cross_data:
python Launch_FL.py --root YOUR_DATA_PATH --exp_name cross_data --model_name fedtpg --eval-only --model-dir output/cross_data/fedtpg/5_8/43/ --load-epoch 500

License

FedTPG is open-sourced under the AGPL-3.0 license. See the LICENSE file for details.

For a list of other open source components included in FedTPG, see the file 3rd-party-licenses.txt.