Assessing The Potential Of Mid-Sized Language Models For Clinical QA

• URL: http://arxiv.org/abs/2404.15894v1
• Date: Wed, 24 Apr 2024 14:32:34 GMT
• Title: Assessing The Potential Of Mid-Sized Language Models For Clinical QA
• Authors: Elliot Bolton, Betty Xiong, Vijaytha Muralidharan, Joel Schamroth, Vivek Muralidharan, Christopher D. Manning, Roxana Daneshjou,
• Abstract summary: Large language models, such as GPT-4 and Med-PaLM, have shown impressive performance on clinical tasks. Mid-size models such as BioGPT-large, BioMedLM, LLaMA 2, and Mistral 7B avoid these drawbacks. This study provides the first head-to-head assessment of open source mid-sized models on clinical tasks.
• Score: 24.116649037975762
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Large language models, such as GPT-4 and Med-PaLM, have shown impressive performance on clinical tasks; however, they require access to compute, are closed-source, and cannot be deployed on device. Mid-size models such as BioGPT-large, BioMedLM, LLaMA 2, and Mistral 7B avoid these drawbacks, but their capacity for clinical tasks has been understudied. To help assess their potential for clinical use and help researchers decide which model they should use, we compare their performance on two clinical question-answering (QA) tasks: MedQA and consumer query answering. We find that Mistral 7B is the best performing model, winning on all benchmarks and outperforming models trained specifically for the biomedical domain. While Mistral 7B's MedQA score of 63.0% approaches the original Med-PaLM, and it often can produce plausible responses to consumer health queries, room for improvement still exists. This study provides the first head-to-head assessment of open source mid-sized models on clinical tasks.

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