  Recent advancements have illuminated the efficacy of some
tensorization-decomposition Parameter-Efficient Fine-Tuning methods like LoRA
and FacT in the context of Vision Transformers (ViT). However, these methods
grapple with the challenges of inadequately addressing inner- and cross-layer
redundancy. To tackle this issue, we introduce EFfective Factor-Tuning (EFFT),
a simple yet effective fine-tuning method. Within the VTAB-1K dataset, our EFFT
surpasses all baselines, attaining state-of-the-art performance with a
categorical average of 75.9% in top-1 accuracy with only 0.28% of the
parameters for full fine-tuning. Considering the simplicity and efficacy of
EFFT, it holds the potential to serve as a foundational benchmark. The code and
model are now available at
https://github.com/Dongping-Chen/EFFT-EFfective-Factor-Tuning.
