A new density-ratio based approach for patient-specific biomedical monitoring.
Publication in refereed journal

香港中文大學研究人員

全文

其它資訊
摘要In order to denote the abnormalities of the patients, we propose a novel approach to detect anomaly in biomedical monitoring using density ratio values as the Patient Status Index (PSI). The key idea of the proposed method is to define the ratio of training and testing data densities, where training dataset only consist of normal data and testing dataset consist of both normal and abnormal data, and identify irregular samples for testing patients' dataset. Furthermore, we define four inequalities to denote the interval values of density ratio and give the corresponding status for patients. In addition, the applied Kullback-Leibler based algorithm for calculating density ratio values without involving density estimation is equipped with a cross validation (CV) model selection procedure, allowing us to objectively optimize values of tuning parameters. We select training and testing data from Physionet database to do our pilot experiment. The experimental results for 11901 beats show that the density-ratio based approach work very well in terms of specificity and sensitivity.
著者Chen D., Meng M.Q.
期刊名稱Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society
詳細描述organized by IEEE,
出版年份2011
月份12
日期1
卷號2011
頁次6943 - 6946
國際標準期刊號1557-170X
語言英式英語

上次更新時間 2020-29-11 於 02:32