Fig. 4
From: Deep learning-based lung sound analysis for intelligent stethoscope
Deep learning-based framework for lung sound analysis. For two different medical tasks (ASD and RDR), the training set is used to construct the model including the steps of preprocessing, feature extraction, model selection. Finally, the test set is used to evaluate the performance of model. FNN fully connected neural network, CNN convolutional neural network, RNN recurrent neural network, COPD chronic obstructive pulmonary disease