arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2205.13481cs.LG
收藏

DeepJoint:临床存在变化下的稳健生存模型

DeepJoint: Robust Survival Modelling Under Clinical Presence Shift

MRC Biostatistics Unit(英国医学研究理事会生物统计学组);University of Cambridge(剑桥大学);Health e-Research Centre(健康电子研究中心);University of Manchester(曼彻斯特大学)

Vincent Jeanselme, Glen Martin, Niels Peek, Matthew Sperrin, Brian Tom, Jessica Barrett

摘要:

医学中的观察数据是由于患者和医疗保健系统之间复杂的相互作用而产生的。抽样过程往往极不规则,本身就是一个提供信息的过程。当使用这些数据来开发预测模型时,这种现象往往被忽视,导致在实践发展时模型的次优性能和通用性。我们提出了一个多任务的递归神经网络模型的三个临床存在的尺寸-即纵向,观察和失踪的过程-平行的生存结果。在使用MIMIC III实验室测试的预测任务中,与最先进的预测模型相比,这三个过程的显式建模显示出更好的性能(1天范围内的C指数:0.878)。更重要的是,所提出的方法是更强大的临床存在设置的变化,表现出在工作日和周末入院的患者之间的性能比较。该分析证明了研究和利用临床存在以提高性能并创建更可移植的临床模型的重要性。

英文摘要:

Observational data in medicine arise as a result of the complex interaction between patients and the healthcare system. The sampling process is often highly irregular and itself constitutes an informative process. When using such data to develop prediction models, this phenomenon is often ignored, leading to sub-optimal performance and generalisability of models when practices evolve. We propose a multi-task recurrent neural network which models three clinical presence dimensions -- namely the longitudinal, the inter-observation and the missingness processes -- in parallel to the survival outcome. On a prediction task using MIMIC III laboratory tests, explicit modelling of these three processes showed improved performance in comparison to state-of-the-art predictive models (C-index at 1 day horizon: 0.878). More importantly, the proposed approach was more robust to change in the clinical presence setting, demonstrated by performance comparison between patients admitted on weekdays and weekends. This analysis demonstrates the importance of studying and leveraging clinical presence to improve performance and create more transportable clinical models.

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。

↑