Research Article

Patient-Specific Deep Architectural Model for ECG Classification

Figure 5

Schematic view of SDA for feature learning and DNN-based classification: (a) three layers of SDA and four layers of DNN; (b) part of the first layer weights of unsupervised trained SDA model; (c) extracted features of number 100 record first heartbeat; and (d) details of the weights marked with a red box.