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arXiv 2401.04716cs.CV
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基础模型面临的低资源视觉挑战

Low-Resource Vision Challenges for Foundation Models

University of Amsterdam(阿姆斯特丹大学);Leiden University(莱顿大学)

Yunhua Zhang, Hazel Doughty, Cees G. M. Snoek

AI总结:

该研究针对计算机视觉领域低资源问题探索不足的现状,构建了涵盖三类专业图像的低资源基准,提出对应三项挑战的基线方法,实验证明其效果优于现有常用方法,为低资源视觉研究提供了新方向。

摘要:

低资源设置在自然语言处理领域已得到充分研究,该领域中许多语言缺乏足够数据支撑大规模深度学习。但计算机视觉领域的低资源问题尚未得到充分探索。本文填补了这一空白,探究视觉基础模型在低资源图像任务中面临的挑战。我们首先收集了一个真实低资源图像数据基准,涵盖历史地图、电路图和机械制图。这些低资源场景均存在三大挑战:数据稀缺、细粒度差异,以及从自然图像到目标专业领域的分布偏移。尽管现有基础模型展现出出色的泛化能力,但我们发现它们无法很好地迁移到我们的低资源任务中。为着手应对低资源视觉挑战,我们针对每项挑战提出了一种简单基线方法。具体而言,我们:i)通过生成模型扩大数据空间,ii)采用最优子核编码局部区域以发现细粒度差异,iii)学习针对专业领域的注意力机制。在我们的三项低资源任务上开展的实验表明,所提方法已能提供优于迁移学习、数据增强和细粒度方法的基线效果。这凸显了面向基础模型的低资源视觉所具有的独特特性与挑战,值得进一步研究。项目主页:https://xiaobai1217.github.io/Low-Resource-Vision/。

英文摘要:

Low-resource settings are well-established in natural language processing, where many languages lack sufficient data for deep learning at scale. However, low-resource problems are under-explored in computer vision. In this paper, we address this gap and explore the challenges of low-resource image tasks with vision foundation models. We first collect a benchmark of genuinely low-resource image data, covering historic maps, circuit diagrams, and mechanical drawings. These low-resource settings all share three challenges: data scarcity, fine-grained differences, and the distribution shift from natural images to the specialized domain of interest. While existing foundation models have shown impressive generalizability, we find they cannot transfer well to our low-resource tasks. To begin to tackle the challenges of low-resource vision, we introduce one simple baseline per challenge. Specifically, we i) enlarge the data space by generative models, ii) adopt the best sub-kernels to encode local regions for fine-grained difference discovery and iii) learn attention for specialized domains. Experiments on our three low-resource tasks demonstrate our proposals already provide a better baseline than transfer learning, data augmentation, and fine-grained methods. This highlights the unique characteristics and challenges of low-resource vision for foundation models that warrant further investigation. Project page: https://xiaobai1217.github.io/Low-Resource-Vision/.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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