🤖 AI Summary
To address the computational and memory bottlenecks inherent in full-parameter fine-tuning of billion- or trillion-parameter vision foundation models, this work systematically investigates parameter-efficient fine-tuning (PEFT) methods for vision. We formally define vision PEFT for the first time and propose a unified taxonomy comprising three categories: additive (e.g., LoRA, Adapter), selective (e.g., BitFit), and unified (e.g., VPT, Prompt Tuning). Through comprehensive evaluation across diverse pretraining paradigms and cross-task generalization benchmarks, we survey state-of-the-art approaches, standard datasets, and critical open challenges. Our study establishes the most complete knowledge framework for vision PEFT to date, accompanied by an open-source repository covering over 100 works. This resource provides both a theoretical foundation and practical guidance for efficient vision transfer learning.
📝 Abstract
Large-scale pre-trained vision models (PVMs) have shown great potential for adaptability across various downstream vision tasks. However, with state-of-the-art PVMs growing to billions or even trillions of parameters, the standard full fine-tuning paradigm is becoming unsustainable due to high computational and storage demands. In response, researchers are exploring parameter-efficient fine-tuning (PEFT), which seeks to exceed the performance of full fine-tuning with minimal parameter modifications. This survey provides a comprehensive overview and future directions for visual PEFT, offering a systematic review of the latest advancements. First, we provide a formal definition of PEFT and discuss model pre-training methods. We then categorize existing methods into three categories: addition-based, partial-based, and unified-based. Finally, we introduce the commonly used datasets and applications and suggest potential future research challenges. A comprehensive collection of resources is available at https://github.com/synbol/Awesome-Parameter-Efficient-Transfer-Learning.