classification machine learning 39 deep learning 29 Research & information: general 19 History of engineering & technology 16 Technology: general issues 16 convolutional neural network 13 transfer learning 12 feature selection 11 neural networks 11 artificial intelligence 9 pattern recognition 9 support vector machine 9 Information technology industries 8 clustering 8 detection 8 optimization 8 remote sensing 8 Biology, life sciences 7 artificial neural network 7 feature extraction 7 image processing 7 monitoring 7 multi-objective optimization 7 IoT 6 aging 6 big data 6 convolutional neural networks 6 data fusion 6 image classification 6