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arXiv 2304.02496cs.CLcs.AI
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ChatGPT 系列模型在生物医学推理与分类任务中的评估

Evaluation of ChatGPT Family of Models for Biomedical Reasoning and Classification

Mass General Brigham, Harvard Medical School(麻省总医院布莱根,哈佛医学院);Brigham and Women’s Hospital/Dana-Farber Cancer Institute(布莱根妇女医院/丹娜-法伯癌症研究所);Technische Universität Darmstadt(达姆施塔特工业大学);Maastricht University(马斯特里赫特大学)

Shan Chen, Yingya Li, Sheng Lu, Hoang Van, Hugo JWL Aerts, Guergana K. Savova, Danielle S. Bitterman

AI总结:

该研究用超过10000个样本评估ChatGPT系列模型在生物医学分类和因果推理任务上的表现,发现微调BioBERT仍是最佳策略,简单词袋模型可与复杂LLM提示相媲美。

摘要:

大型语言模型(LLMs)的最新进展在生物医学问答中展现出令人印象深刻的能力,但尚未在更具体的生物医学应用中得到充分研究。本研究考察了 ChatGPT 系列模型(GPT-3.5s、GPT-4)等 LLMs 在问答之外的生物医学任务上的表现。由于无法将患者数据传递到 OpenAI API 公共接口,我们使用超过 10000 个样本作为临床领域两项基本任务——分类和推理——的代理来评估模型性能。第一项任务是分类科学文献中的临床和政策建议陈述是否构成健康建议。第二项任务是从生物医学文献中检测因果关系。我们将 LLMs 与更简单的模型进行了比较,例如使用逻辑回归的词袋模型(BoW)以及经过微调的 BioBERT 模型。尽管病毒式传播的 ChatGPT 令人兴奋,但我们发现针对两项基本 NLP 任务的微调仍然是最佳策略。简单的 BoW 模型与最复杂的 LLM 提示表现相当。提示工程需要大量投入。

英文摘要:

Recent advances in large language models (LLMs) have shown impressive ability in biomedical question-answering, but have not been adequately investigated for more specific biomedical applications. This study investigates the performance of LLMs such as the ChatGPT family of models (GPT-3.5s, GPT-4) in biomedical tasks beyond question-answering. Because no patient data can be passed to the OpenAI API public interface, we evaluated model performance with over 10000 samples as proxies for two fundamental tasks in the clinical domain - classification and reasoning. The first task is classifying whether statements of clinical and policy recommendations in scientific literature constitute health advice. The second task is causal relation detection from the biomedical literature. We compared LLMs with simpler models, such as bag-of-words (BoW) with logistic regression, and fine-tuned BioBERT models. Despite the excitement around viral ChatGPT, we found that fine-tuning for two fundamental NLP tasks remained the best strategy. The simple BoW model performed on par with the most complex LLM prompting. Prompt engineering required significant investment.

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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