Dynamic-Tuning

The official implementation of "2024Arxiv Dynamic Tuning Towards Parameter and Inference Efficiency for ViT Adaptation".

Wangbo Zhao¹, Jiasheng Tang^2,3, Yizeng Han⁴, Yibing Song^2,3, Kai Wang¹, Gao Huang⁴, Fan Wang², Yang You¹

¹National University of Singapore, ²DAMO Academy, Alibaba Group, ³Hupan Lab, ⁴Tsinghua University

Paper

Abstract

Existing parameter-efficient fine-tuning (PEFT) methods have achieved significant success on vision transformers (ViTs) adaptation by improving parameter efficiency. However, the exploration of enhancing inference efficiency during adaptation remains underexplored. This limits the broader application of pre-trained ViT models, especially when the model is computationally extensive. In this paper, we propose Dynamic Tuning (DyT), a novel approach to improve both parameter and inference efficiency for ViT adaptation. Specifically, besides using the lightweight adapter modules, we propose a token dispatcher to distinguish informative tokens from less important ones, allowing the latter to dynamically skip the original block, thereby reducing the redundant computation during inference. Additionally, we explore multiple design variants to find the best practice of DyT. Finally, inspired by the mixture-of-experts (MoE) mechanism, we introduce an enhanced adapter to further boost the adaptation performance. We validate DyT across various tasks, including image/video recognition and semantic segmentation. For instance, DyT achieves comparable or even superior performance compared to existing PEFT methods while evoking only 71%-85% of their FLOPs on the VTAB-1K benchmark.

🛠 Dataset Prepare

• For VTAB-1K, we recommend to adopt the split provided by SSF. You can directly download the VTAB-1K from their repo.
• For other image datasets, they will be automatically downloaded when you first run our code.
• For video datasets (K400 and SSv2), you can download them from OpenDataLab or their offical websites.

🛠 Installation

pip install -r requirements.txt # install torch, timm, torchvision, etc.
wget https://github.com/rwightman/pytorch-image-models/releases/download/v0.1-vitjx/jx_vit_base_patch16_224_in21k-e5005f0a.pth # download the ckpt from timm

⚙️ Fine-tuning

bash ./train_IN21K.sh  # training on complete datasets
bash ./train_vtab.sh # training on vtab benchmark
bash ./train_video.sh # training on video datasets

Citation

If you found our work useful, please consider citing us.

@misc{zhao2024dynamic,
      title={Dynamic Tuning Towards Parameter and Inference Efficiency for ViT Adaptation}, 
      author={Wangbo Zhao and Jiasheng Tang and Yizeng Han and Yibing Song and Kai Wang and Gao Huang and Fan Wang and Yang You},
      year={2024},
      eprint={2403.11808},
      archivePrefix={arXiv},
      primaryClass={cs.CV}
}

Acknowledge

The repo is partly built based on AdaptFormer, AdViT, and PETL-ViT. We are grateful for their generous contribution to open source.

Contact

🔥🔥🔥 If you are interested in this work and hope to cooperate with us, please drop an email to wangbo.zhao96@gmail.com 🔥🔥🔥