arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2408.06285cs.CLcs.AIcs.LG
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利用大语言模型从临床病历生成合成医患对话

Synthetic Patient-Physician Dialogue Generation from Clinical Notes Using LLM

Trisha Das, Dina Albassam, Jimeng Sun

AI总结:

针对医疗对话系统训练数据受隐私限制难以获取的问题,提出SynDial方法,通过带反馈循环的大语言模型零样本迭代从临床病历生成合成医患对话,在事实性上优于基线且多样性与GPT-4相当。

摘要:

医疗对话系统(MDS)可优化医患沟通、提升医疗可及性并降低成本,但获取适配的训练数据面临重大挑战:隐私顾虑导致真实对话无法使用,亟需合成替代方案。从公开临床病历生成合成对话是兼具真实性与隐私保护性的可行方案。我们提出的SynDial方法采用单一大语言模型,结合零样本提示与反馈循环迭代生成并优化高质量合成对话,反馈包含相似度与抽取度的加权评估分,迭代过程确保对话达到预设阈值,借由反馈循环实现更优的抽取表现。此外,评估显示生成对话在事实性指标上优于基线模型,多样性得分与GPT-4相当。

英文摘要:

Medical dialogue systems (MDS) enhance patient-physician communication, improve healthcare accessibility, and reduce costs. However, acquiring suitable data to train these systems poses significant challenges. Privacy concerns prevent the use of real conversations, necessitating synthetic alternatives. Synthetic dialogue generation from publicly available clinical notes offers a promising solution to this issue, providing realistic data while safeguarding privacy. Our approach, SynDial, uses a single LLM iteratively with zero-shot prompting and a feedback loop to generate and refine high-quality synthetic dialogues. The feedback consists of weighted evaluation scores for similarity and extractiveness. The iterative process ensures dialogues meet predefined thresholds, achieving superior extractiveness as a result of the feedback loop. Additionally, evaluation shows that the generated dialogues excel in factuality metric compared to the baselines and has comparable diversity scores with GPT4.

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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