Figure 4.
Summary of ML-DL methods employed in included studies. ANN: artificial neural network; CNN: convolutional neural network; DL: deep learning; DT: decision tree; ELM: extreme learning machine; ERT: extremely randomized trees; kNN: k-nearest neighbor; LR: logistic regression; ML: machine learning; OSELM: online sequential extreme learning machine; RF: random forest; SVM: support vector machine.