arXiv:2511.03367cs.CVcs.AI2025-11中稿 · Pattern Recognitio…被引 3

提出AAPL方法,让视觉语言模型更关注语义特征而非增强带来的表面变化。

Decoupling Augmentation Bias in Prompt Learning for Vision-Language Models

  • 引入对抗性标记嵌入,分离图像增强带来的表层变化与语义特征
  • 在11个数据集上,零样本、少样本等设置下均优于现有方法
  • 适合需要提升泛化能力的视觉语言模型研究者

大规模视觉语言模型在零样本学习任务中取得显著进展。如CoOp和CoCoOp等方法通过可学习向量替代人工设计提示,提升了性能,但对全新类别泛化能力仍不足。传统零样本方法依赖多种数据增强,而提示学习主要聚焦文本修改,忽视了图像增强的潜力。本文研究图像级增强(尤其是属性特异性变化)对提示学习的支持作用。分析揭示其有助于提升泛化能力。同时发现现有方法(如CoCoOp)缺乏引导学习聚焦语义视觉特征的机制。为此,提出新增属性提示学习(AAPL),引入对抗性标记嵌入,解耦增强带来的表面视觉变化与类别相关语义表示。该解耦使学习到的提示更关注与目标类别一致的判别性视觉特征。在11个基准数据集上进行广泛实验,AAPL在少样本、零样本、跨数据集及领域泛化设置下均持续优于现有方法。源代码已公开于https://github.com/Gahyeonkim09/AAPL。

原文摘要 · Abstract (English)

Recent advances in large-scale vision and language models have led to significant progress in zero-shot learning tasks. Methods such as CoOp and CoCoOp have shown that replacing handcrafted prompts with learnable vectors, known as prompt learning, can result in improved performance. However, these models often struggle to generalize to entirely unseen categories. While traditional zero-shot learning techniques benefit from various data augmentation strategies, prompt learning has primarily focused on text-based modifications, leaving the potential of image-based augmentation largely unexplored. In this work, we explore how image-level augmentations, particularly those that introduce attribute-specific variations, can support and enhance prompt learning. Our analysis examines the interaction between these augmentations and soft prompt frameworks, revealing their potential to improve generalization. We also identify a limitation in existing methods, such as CoCoOp, which do not provide explicit guidance for learning prompts that focus on semantically meaningful visual features. To address this, we propose Adding Attributes to Prompt Learning, AAPL, a novel method that introduces adversarial token embeddings to decouple superficial visual variations introduced by augmentation from class-relevant semantic representations. This decoupling enables the learned prompts to concentrate on visually discriminative features that align with the target categories. We conduct comprehensive experiments on eleven benchmark datasets, and AAPL consistently outperforms existing methods across few-shot, zero-shot, cross-dataset, and domain generalization settings. Our source code is publicly available at: https://github.com/Gahyeonkim09/AAPL

提示学习视觉语言模型增强解耦泛化能力

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