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arXiv 2110.07090cs.CL
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MIMICause:临床笔记中因果关系类型的表示和自动提取

MIMICause: Representation and automatic extraction of causal relation types from clinical notes

Accenture Labs(埃森哲实验室);Indian Institute of Science(印度科学学院);Arizona State University(亚利桑那州立大学);Duke University(杜克大学)

Vivek Khetan, Md Imbesat Hassan Rizvi, Jessica Huber, Paige Bartusiak, Bogdan Sacaleanu, Andrew Fano

摘要:

理解临床笔记中传达的因果叙述可以帮助向个性化医疗保健迈进。从临床记录中提取的因果信息可以与结构化的EHR数据相结合,例如患者的人口统计学,诊断和药物。这将提高医疗保健提供者识别临床记录中传达的患者故事的各个方面的能力,并帮助做出更明智的决策。在这项工作中,我们提出了注释指南,开发一个注释语料库,并提供基线分数,以确定类型和方向之间的因果关系的一对生物医学概念的临床笔记;传达隐含或明确,确定在一个单一的句子或跨多个句子。我们注释了从2018年n2 c2共享任务数据集中采样的总共2714个去识别示例,并训练了四种不同的基于语言模型的架构。基于我们的指南的注释实现了较高的注释者间一致性,即Fleiss kappa($κ$)评分为0.72,我们的因果关系识别模型在测试数据上实现了0.56的宏观F1评分。临床文本的高注释者间一致性显示了我们注释指南的质量,而提供的基线F1评分为未来研究理解临床文本中的叙述设定了方向。

英文摘要:

Understanding causal narratives communicated in clinical notes can help make strides towards personalized healthcare. Extracted causal information from clinical notes can be combined with structured EHR data such as patients' demographics, diagnoses, and medications. This will enhance healthcare providers' ability to identify aspects of a patient's story communicated in the clinical notes and help make more informed decisions. In this work, we propose annotation guidelines, develop an annotated corpus and provide baseline scores to identify types and direction of causal relations between a pair of biomedical concepts in clinical notes; communicated implicitly or explicitly, identified either in a single sentence or across multiple sentences. We annotate a total of 2714 de-identified examples sampled from the 2018 n2c2 shared task dataset and train four different language model based architectures. Annotation based on our guidelines achieved a high inter-annotator agreement i.e. Fleiss' kappa ($κ$) score of 0.72, and our model for identification of causal relations achieved a macro F1 score of 0.56 on the test data. The high inter-annotator agreement for clinical text shows the quality of our annotation guidelines while the provided baseline F1 score sets the direction for future research towards understanding narratives in clinical texts.

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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