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研究生: 蔡穆泓
Tsai, Mu-Hong
論文名稱: 使用長短期記憶模型以預測住院病患死亡
Using Long Short-Term Memory Model to Predict Inpatient Mortality
指導教授: 鄧維光
Teng, Wei-Guang
學位類別: 碩士
Master
系所名稱: 工學院 - 工程科學系
Department of Engineering Science
論文出版年: 2024
畢業學年度: 112
語文別: 英文
論文頁數: 64
中文關鍵詞: 長短期記憶模型住院病患死亡早期預警系統深度學習
外文關鍵詞: long short-term memory model, inpatient mortality, early warning system, deep learning
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  • Chapter 1 Introduction 1 1.1 Motivation and Overview 1 1.2 Contributions of This Work 2 Chapter 2 Preliminaries 4 2.1 Advantages and Challenges of Typical EWS 4 2.2 Prior Works on Predicting Inpatient Mortality 6 2.3 Predicting Inpatient Mortality by Time Series Model 8 2.3.1 Problem Definition of Predicting Inpatient Mortality 8 2.3.2 Selection of Time Series Models 10 2.3.3 Preprocessing Tasks of Time Series Data 12 2.3.4 Impact of Time Window Setting 15 Chapter 3 Our Proposed Scheme of DeepEWS 17 3.1 Our Proposed Flow of DeepEWS 17 3.2 Data Preprocessing Before Model Training 20 3.3 Time Window Creation and Binary Labeling 24 3.4 Building a Prediction Model Using LSTM 26 3.5 Model Performance Evaluation 29 Chapter 4 Experimental Studies 33 4.1 Development Environment 33 4.2 Dataset Used in Our Experiments 35 4.3 Experiment Results 38 4.3.1 Comparison of Different Prediction Techniques 39 4.3.2 Impact of Different Interpolation Methods 40 4.3.3 Impact of Different Settings of Time Windows 43 4.3.4 Impact of Adding Changes in Vital Signs 45 4.3.5 Impact of Adding More Vital Signs 47 Chapter 5 Conclusions and Future Work 49 Bibliography 50

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