适应生成性大语言模型,从住宅老年护理的非结构化电子健康记录中提取信息:对培训方法的比较分析
Dinithi Vithanage1, Chao Deng2, Lei Wang1
1School of Computing and Information Technology, University of Wollongong, Wollongong, Australia.
Journal of healthcare informatics research
|May 1, 2025
概括
生成型大语言模型 (LLM) 显示出从健康记录中提取信息的前景. 参数效率微调 (PEFT) 显著提高了老年护理机构的LLM绩效,特别是零射击学习.
科学领域:
- 人工智能的人工智能
- 医疗信息学 医疗信息学
- 自然语言处理自然语言处理.
背景情况:
- 从非结构化的电子健康记录中提取信息是复杂的.
- 生成型大语言模型 (LLM) 为临床信息提取提供了潜在的解决方案.
- 对于住宅养老机构的最佳LLM适应方法需要进一步研究.
研究的目的:
- 评估老年护理LLMs的零射击和少数射击学习方法.
- 评估参数有效微调 (PEFT) 和检索增强生成 (RAG) 对LLM性能的影响.
- 为了比较不同LLM培训策略在护理笔记中的命名实体识别 (NER) 的有效性.
主要方法:
- 使用Llama 3.1-8B用于在澳大利亚老年护理机构的护理笔记上进行命名实体识别 (NER).
- 与PEFT和RAG的零射击和少射击学习进行比较.
- 使用准确度,精度,回忆和F1分数进行评估性能,并进行统计学意义测试.
主要成果:
- 使用PEFT或RAG的零射击和少数射击学习显示了相似的性能.
- 在没有PEFT或RAG的情况下,Few-shot学习的表现优于零射击学习.
- 对于零射击和少数射击学习,PEFT显著提高了性能.
- RAG 显著提高了性能,但仅用于几次学习.
- 使用PEFT的零射击学习实现了与使用RAG的少数射击学习相比的性能.
结论:
- PEFT是一种高度有效的方法,用于适应LLMs,以获取老年护理中的临床信息.
- 短暂的学习与RAG相结合,提供了卓越的性能.
- 这些发现指导了对临床IE在老年护理机构中的LLM优化.
关键词:
电子健康记录电子健康记录生成型的大型语言模型提取信息 提取信息拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛拉玛自然语言处理自然语言处理.更多相关视频
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