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SiRi: A Simple Selective Retraining Mechanism for Transformer-based Visual Grounding

This repository is an official PyTorch implementation of the ECCV 2022 paper SiRi: A Simple Selective Retraining Mechanism for Transformer-based Visual Grounding.

Introduction

we investigate a new training mechanism to improve the Transformer encoder, named Selective Retraining (SiRi), which continually update the parameters of the encoder while periodically re-initialize the rest parameters as the training goes on. In this way, the model can be better optimized based on an enhanced encoder. Figure below shows the training process of SiRi. For more details. please refer to our paper.

SiRi

Updates

2022-7-25 Code and model link of SiRi in MDETR-like model on task REC
We will update the code and models on TransVG and other VL tasks such as RES.

Installation

Environment:

We provide instructions how to install dependencies via conda. First, clone the repository locally:
```
git clone https://github.com/qumengxue/siri-vg.git
```

Make a new conda env and activate it:

conda create -n siri python=3.8
conda activate siri

Install the the packages in the requirements.txt:
```
pip install -r requirements.txt
```

Dataset preparation

Prepare COCO training set ("train2014")
Download the pre-processed annotations that are converted to coco format in MDETR.
Modify the config file under configs/ according to your dataset path, especially coco_path, refexp_ann_path.

For more installation details, please see the repository of MDETR, our code is built based on it.

Training

For example, if with 2 decoders and 8 retraining periods in RefCOCOg, run
```
sh refcocog.sh
```

For individual initial training, run

python -m torch.distributed.launch   --nproc_per_node=4  --use_env main.py  --dataset_config configs/refcocog.json  --batch_size 18  --output-dir exps/refcocog_retrain_2decoder_1/   --ema   --lr 5e-5   --lr_backbone 5e-5   --text_encoder_lr 1e-5  --num_queries 16  --no_contrastive_align_loss  --cascade_num 2

Evaluation

Training with running *.sh will automatically evaluate for each round of SiRi, so you can check it directly.

For individual model evaluation, run

python -m torch.distributed.launch  --nproc_per_node=4  --use_env main.py  --dataset_config configs/refcocog.json  --batch_size 18 --output-dir exps/   --ema   --lr 5e-5   --lr_backbone 5e-5   --text_encoder_lr 1e-5  --num_queries 16  --no_contrastive_align_loss  --cascade_num 2  --resume exps/refcocog_1d.pth  --eval

Model Zoo

TASK1: Referring Expression Comprehension

RefCOCO

Model	val	testA	testB	model
MDETR* +SiRi	85.83	88.56	81.27	gdrive
MDETR* + MT SiRi	85.82	89.11	81.08	gdrive

RefCOCO+

Model	val	testA	testB	model
MDETR* +SiRi	76.68 (76.63)	82.01 (81.99)	66.33 (66.86)	gdrive
MDETR* + MT SiRi	77.47 (77.53)	83.04 (82.47)	67.11 (67.89)	gdrive

RefCOCOg

Model	val	test	model
MDETR* +SiRi	76.63	76.46	gdrive
MDETR* + MT SiRi	77.39	76.80	gdrive

TASK2: Referring Expression Segmentation

Coming soon!

Citing SiRi

@inproceedings{qu2022siri,
  title={SiRi: A Simple Selective Retraining Mechanism for Transformer-based Visual Grounding},
  author={Qu,Mengxue and Wu, Yu and Liu, Wu and Gong, Qiqi and Liang, Xiaodan and Olga, Russakovsky and Zhao, Yao and Wei, Yunchao},
  booktitle={ECCV},
  year={2022}
}

Acknowledgement

Our code is built on the previous work MDETR.