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Title: Early Detecting In-Hospital Cardiac Arrest Based on Machine Learning on Imbalanced Data
Authors: 邱淑怡
Chiu, Shu-i
Chang, Hsiao-Ko
Liu, Ji-Han
Lim, Wee Shin
Wang, Hui-Chih;Jang, Jyh-Shing Roger
Contributors: 資科系
Keywords: Cardiac arrest;cardiopulmonary resuscitation;imbalanced data classification;machine learning;prediction
Date: 2019-06
Issue Date: 2021-01-26 15:16:05 (UTC+8)
Abstract: In-hospital cardiac arrest (IHCA) diminish the survival rate of patients, despite most of the IHCA cases are preventable. More than 54% IHCA patient had abnormal clinical manifestation before they suffered a cardiac arrest. If appropriate steps were taken, patients’ survival rate would be higher and medical expense would be decreased. This paper proposes a novel approach to detect IHCA before the event occurred. We construct two types of shifting windows (corresponding to two tasks) that allow machine learning to be applied for our dataset which is severely imbalanced. The results show that our approach can effectively handle the imbalanced dataset for detecting cardiac arrest. As the selection of performance index, we used the area under the receiver operating characteristic curve (AUROC) and the area under the precision–recall curve (AUPRC). In our experiments, the best classifier is random forest for task 1, with AUROC of 0.88. LSTM is the best for task 2, with AUPRC of 0.71 for the second task.
Relation: IEEE International Conference on Healthcare Informatics, China, pp.1-10
Data Type: conference
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