Deep learning deep learning 56 human 44 Humans 43 Article 34 Deep Learning 27 machine learning 24 convolutional neural network 20 Learning systems 19 Convolutional neural networks 18 diagnostic imaging 17 training 17 Feature extraction 15 Diagnosis 14 Neural Networks, Computer 14 controlled study 14 image segmentation 14 learning algorithm 14 Deep neural networks 13 Neural networks 13 Semantics 13 algorithm 13 sensitivity and specificity 13 Reinforcement learning 12 artificial neural network 12 feature extraction 12 COVID-19 11 Classification (of information) 11 support vector machine 11 Diseases 10