Deep Learning, Artificial Intelligence, Heart Sounds, Sound Classification, Cardiology.
LSTM–RNN and GRU–RNN models contain 3 recurrent layers with output dimensions 256, 1 024, and 256. In a similar way to the attention mechanism in CNNs, the left component (corresponding to the top one in Fig. 2) herein contains a one-dimensional convolutional layer, in which the kernel size is 1