Fig. 4: Electrocardiogram pattern training and inference task. | npj 2D Materials and Applications

Fig. 4: Electrocardiogram pattern training and inference task.

From: Photoelectroactive artificial synapse and its application to biosignal pattern recognition

Fig. 4

a Five types of electrocardiogram (ECG) waveforms and preparation process for training and testing datasets. b Schematic illustration of the designed single-layer neural network with a size of 160 × 5. c Representation of synaptic weight using the conductance difference between two equivalent photoelectroactive synaptic devices. d Mapping images of 800 synaptic weights after 10th and 1000th epochs. e Confusion matrix of heartbeat type classification for 600 test datasets. f Training accuracy as a function of the number of training epochs according to the number of pulses.

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