Synthetic Patient-Physician Dialogue Generation from Clinical Notes Using LLM

Trisha Das; Dina Albassam; Jimeng Sun

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arXiv · 2408.06285

Synthetic Patient-Physician Dialogue Generation from Clinical Notes Using LLM

Trisha Das·Dina Albassam·Jimeng Sun

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Abstract

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.

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Trisha Das, Dina Albassam, Jimeng Sun. 2024-08-12. Synthetic Patient-Physician Dialogue Generation from Clinical Notes Using LLM. https://arxiv.org/abs/2408.06285

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