cs.AI updates on arXiv.org 10月02日
视觉语言模型在保释决策中的应用审计
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本文探讨了利用视觉语言模型(VLMs)进行保释决策预测的效率,指出其在多群体中表现不佳,并设计了干预算法提升预测准确度。

arXiv:2510.00088v1 Announce Type: new Abstract: Large language models (LLMs) have been extensively used for legal judgment prediction tasks based on case reports and crime history. However, with a surge in the availability of large vision language models (VLMs), legal judgment prediction systems can now be made to leverage the images of the criminals in addition to the textual case reports/crime history. Applications built in this way could lead to inadvertent consequences and be used with malicious intent. In this work, we run an audit to investigate the efficiency of standalone VLMs in the bail decision prediction task. We observe that the performance is poor across multiple intersectional groups and models \textit{wrongly deny bail to deserving individuals with very high confidence}. We design different intervention algorithms by first including legal precedents through a RAG pipeline and then fine-tuning the VLMs using innovative schemes. We demonstrate that these interventions substantially improve the performance of bail prediction. Our work paves the way for the design of smarter interventions on VLMs in the future, before they can be deployed for real-world legal judgment prediction.

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视觉语言模型 保释决策 预测准确性 干预算法 法律决策
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