研究生: |
Ahmad Khairul Faizin Ahmad Khairul Faizin |
---|---|
論文名稱: |
Machine Learning Application to Septic Pig Data Detection Machine Learning Application to Septic Pig Data Detection |
指導教授: |
張以全
I-Tsyuen Chang |
口試委員: |
林顯易
Hsien-I Lin 藍振洋 Chen-yang Lan |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 機械工程系 Department of Mechanical Engineering |
論文出版年: | 2020 |
畢業學年度: | 108 |
語文別: | 英文 |
論文頁數: | 118 |
中文關鍵詞: | Sepsis detection 、feature extraction 、DWT 、EMD 、Artificial Neural Networks |
外文關鍵詞: | Sepsis detection, feature extraction, DWT, EMD, Artificial Neural Networks |
相關次數: | 點閱:263 下載:0 |
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Sepsis remains a costly and prevalent syndrome in hospitals; however, machine learning systems together with signal processing technique can increase sepsis detection and prediction. This study validates artificial neural networks (ANN) machinelearning tool and nonlinear signal analysis using empirical mode decomposition to extract features (EMD) for sepsis detection and early semiprediction.
A dataset was drawn from the database at National Taiwan University of Science and Technology in join research with Taipei Medical University representing pig object measurement from February 2012 to May 2014 in all experiments. This database contains medical measurement data of forty pigs and includes the given sepsis diagnosis, and with at least one recording of each of six vital signs (heart rate, systolic blood pressure, diastolic blood pressure, mean arterial pressure, body temperature, and systemic vascular resistance) were included.
Two separate models were constructed using the six vital signs. First, the complete model which consist of six vital signs. Second, the hypertension model which consist of SVR and blood pressure. The area under the receiver operating characteristic (AUC) curve was our primary measure of accuracy. These two models achieved high performance in sepsis detection that seen from the area under the receiver operating characteristic (AUC) curves were 0.92 (0.880.95) and 0.86 (0.800.92), respectively. Furthermore, we constructed the performance of the machine learning algorithm(ANN) to early semiprediction task of sepsis. ANN performance was measured at 0.5 hours to 2 hours prior to sepsis onset and achieved an AUC in range 0.95 (0.930.97) to 0.83 (0.720.93). The ANN predicts sepsis up to 2 hours in advance and identifies sepsis onset had competed accurately with wellknown previous sepsis prediction studies, also maintaining high performance for both sepsis detection and early semiprediction.
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