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arXiv 2103.00482cs.CLcs.LG
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用于有限数据表型分型的通用和可转移的患者语言表示

Generalized and Transferable Patient Language Representation for Phenotyping with Limited Data

The University of Texas Health Science Center at Houston(德克萨斯大学休斯顿健康科学中心);McGovern Medical School, The University of Texas Health Science Center at Houston(德克萨斯大学休斯顿健康科学中心麦戈文医学院)

Yuqi Si, Elmer V Bernstam, Kirk Roberts

摘要:

通过迁移学习进行表征学习的范例有可能极大地增强临床自然语言处理。在这项工作中,我们提出了一个多任务的预训练和微调的方法学习广义和可转移的病人表示从医学语言。该模型首先使用不同但相关的高患病率表型进行预训练,并在下游目标任务上进行进一步微调。我们的主要贡献集中在这种技术对低患病率表型的影响上,由于缺乏数据,这是一项具有挑战性的任务。我们验证了预训练的表示,并对低患病率表型的多任务预训练模型进行了微调,包括38种循环系统疾病,23种呼吸系统疾病和17种泌尿生殖系统疾病。我们发现多任务预训练提高了学习效率,并在大多数表型中实现了一致的高性能。最重要的是,多任务预训练几乎总是表现最好的模型,或者表现得相当接近表现最好的模型,我们称之为鲁棒性。所有这些结果使我们得出结论,这种多任务迁移学习架构是一种强大的方法,用于为许多表型开发通用和可转移的患者语言表示。

英文摘要:

The paradigm of representation learning through transfer learning has the potential to greatly enhance clinical natural language processing. In this work, we propose a multi-task pre-training and fine-tuning approach for learning generalized and transferable patient representations from medical language. The model is first pre-trained with different but related high-prevalence phenotypes and further fine-tuned on downstream target tasks. Our main contribution focuses on the impact this technique can have on low-prevalence phenotypes, a challenging task due to the dearth of data. We validate the representation from pre-training, and fine-tune the multi-task pre-trained models on low-prevalence phenotypes including 38 circulatory diseases, 23 respiratory diseases, and 17 genitourinary diseases. We find multi-task pre-training increases learning efficiency and achieves consistently high performance across the majority of phenotypes. Most important, the multi-task pre-training is almost always either the best-performing model or performs tolerably close to the best-performing model, a property we refer to as robust. All these results lead us to conclude that this multi-task transfer learning architecture is a robust approach for developing generalized and transferable patient language representations for numerous phenotypes.

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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