Latest News

The latest version of the manuscript associated with this project has been accepted for publication in IEEE Transactions on Neural Networks and Learning Systems (DOI: 10.1109/TNNLS.2026.3658522 ).

Prototype Mask and Contrast for Multimodal FL

Official Implementation of paper "Incomplete Multimodal Federated Learning via Masking and Contrasting Prototypes". In this repository, we provide the implementation of the PmcmFL (Prototype Mask and Contrast for Multimodal Federated Learning) algorithm.

Data Preparation

The VQAv2 dataset needs to be placed in the following directory:

├── src
│    └── data
│         ├── train2014
│               └── (images)
│         ├── val2015
│               └── (images)
│         ├── test2015
│               └── (images)
│         ├── vqa
│               └── (annotations)

Training

Please first execute the following python command in the terminal to build data partition:

from datasets.dataset import VQAv2Dataset
from transformers import XLMRobertaTokenizer
tokenizer = XLMRobertaTokenizer("init_weight/beit3.spm")
VQAv2Dataset.make_dataset_index(data_path="./data", tokenizer=tokenizer, annotation_data_path="data/vqa", scale=False)
VQAv2Dataset.make_modal_missing_index('./data', modal_missing_rate=0.5, alpha=0.1, n_clients=30, n_classes=310)

To quickly perform training, run the following command:

CUDA_VISIBLE_DEVICES='0,1,2,3' python -m torch.distributed.launch --nproc_per_node=4 mian.py

Please refer to the main.py for more detailed training configuration.

Testing

To test the trained global model, run the following command:

CUDA_VISIBLE_DEVICES='0' python -m torch.distributed.launch --nproc_per_node=1 test_ckpt.py

Acknowledgement

This repository is built using the BEiT3 and the CreamFL repository.