artificial intelligence machine learning 63 deep learning 43 History of engineering & technology 33 Technology: general issues 31 Medicine 18 convolutional neural networks 15 convolutional neural network 14 COVID-19 13 transfer learning 13 neural network 12 optimization 12 Research & information: general 11 artificial neural network 11 big data 11 neural networks 11 AI 10 artificial neural networks 9 classification 9 smart cities 9 Artificial intelligence 8 data augmentation 8 feature selection 8 healthcare 8 support vector machine 8 Information technology industries 7 IoT 7 computer vision 7 digital twin 7 feature extraction 7