使用大型语言模型用于痴呆症检测的对抗性文本生成
Youxiang Zhu1, Nana Lin1, Kiran Sandilya Balivada1
1University of Massachusetts Boston, Boston, MA, USA.
概括
大型语言模型 (LLM) 难以从图像中检测痴呆症. 一种名为Adversarial Text Generation (ATG) 的新方法,使用特定任务的指令,提高了超过10%的准确性.
科学领域:
- 人工智能的人工智能
- 认知科学 认知科学
- 医疗信息学 医疗信息学
背景情况:
- 大型语言模型 (LLM) 在文本分类方面表现有前途,但在从图像描述中检测痴呆症等专业任务中面临挑战.
- 由于痴呆症的细微语言标记,标准提示方法是不够的,LLMs难以将内部知识与此特定的诊断任务联系起来.
研究的目的:
- 使用图像描述开发一种准确和可解释的痴呆症检测分类方法.
- 引入一种新的解码策略,即对抗性文本生成 (ATG),以提高在痴呆症检测中LLM的性能.
主要方法:
- 反对文本生成 (ATG) 被用作一种新的解码策略,将痴呆症检测与其他相关任务联系起来.
- 一套全面的特定任务指令被开发并用于指导ATG过程.
- 引入特征上下文是为了为LLM的分类决定提供人类可以理解的解释.
主要成果:
- 拟议的ATG方法在痴呆症检测中达到85%的最高准确性.
- 与传统的提示策略相比,这代表了超过10%的显著改善.
- 功能上下文分析显示,痴呆症检测与评估细节,语言和清晰度的注意力相关,与环境和特征特征相关.
结论:
- 与标准提示相比,Adversarial Text Generation (ATG) 提供了一种更准确,更易于解释的方法来使用LLM检测痴呆症.
- 功能上下文为LLM的决策过程提供了有价值的见解,突出了痴呆症的关键歧视性特征.
- 未来的研究将探索多模式的LLM,以整合语音和视觉信息,以加强痴呆症评估.
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