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arXiv 2409.00543cs.CVcs.CLcs.LGeess.IV
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文本提示的多样化可解释性如何影响医学视觉-语言零样本任务?

How Does Diverse Interpretability of Textual Prompts Impact Medical Vision-Language Zero-Shot Tasks?

Imperial College London(帝国理工学院)

Sicheng Wang, Che Liu, Rossella Arcucci

AI总结:

本研究首次系统评估了三种MedVLP方法在15种疾病上对六种不同提示风格的敏感性,发现模型性能随提示可解释性变化而不稳定,揭示了其在理解复杂医学概念上的鲁棒性不足。

摘要:

医学视觉-语言预训练(MedVLP)的最新进展通过利用大规模医学图文对预训练,显著增强了诸如图像分类等零样本医学视觉任务。然而,这些任务的性能可能受到描述类别的文本提示的变异性严重影响,因此MedVLP模型需要对多样化提示风格具备鲁棒性。然而,这种敏感性仍有待探索。在本研究中,我们首次系统评估了三种广泛使用的MedVLP方法对15种不同疾病的各种提示的敏感性。为此,我们设计了六种独特的提示风格以模拟真实临床场景,并随后按可解释性对其进行排名。研究结果表明,所有评估的MedVLP模型在不同提示风格下均表现出不稳定的性能,表明缺乏鲁棒性。此外,模型的性能随着提示可解释性的增加而变化,揭示了在理解复杂医学概念方面的困难。本研究强调了进一步开发MedVLP方法以增强其对多样化零样本提示鲁棒性的必要性。

英文摘要:

Recent advancements in medical vision-language pre-training (MedVLP) have significantly enhanced zero-shot medical vision tasks such as image classification by leveraging large-scale medical image-text pair pre-training. However, the performance of these tasks can be heavily influenced by the variability in textual prompts describing the categories, necessitating robustness in MedVLP models to diverse prompt styles. Yet, this sensitivity remains underexplored. In this work, we are the first to systematically assess the sensitivity of three widely-used MedVLP methods to a variety of prompts across 15 different diseases. To achieve this, we designed six unique prompt styles to mirror real clinical scenarios, which were subsequently ranked by interpretability. Our findings indicate that all MedVLP models evaluated show unstable performance across different prompt styles, suggesting a lack of robustness. Additionally, the models' performance varied with increasing prompt interpretability, revealing difficulties in comprehending complex medical concepts. This study underscores the need for further development in MedVLP methodologies to enhance their robustness to diverse zero-shot prompts.

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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