E-learning Performance 3 article Deep learning 2 deep learning 2 human 2 Audio acoustics 1 Audio processing 1 Audio recordings 1 Automated defect recognition 1 Automation 1 Back Propagation 1 Backpropagation 1 Contrast-to-noise ratio 1 Cross-phase modulations 1 Defect recognition 1 Defects 1 Digital X-ray radiography 1 Digital voice communications 1 Fiber nonlinearities 1 Gradient methods 1 Image quality 1 Image quality parameters 1 Learning algorithms 1 Learning process 1 Learning systems 1 Light transmission 1 Non destructive testing 1 Nondestructive examination 1 Nonlinear optics 1