Annotation errors 1 Classification (of information) 1 Data annotation 1 Economic and social effects 1 Emboli characterization 1 Embolus characterization 1 Errors 1 Feature space 1 Label propagation Learning algorithms 1 Motion compensation 1 Nearest neighbor search 1 Nearest-neighbour 1 Noisy labels 1 Quality metrices 1 Semi-automatics 1 Semi-supervised learning 1 Stochastic systems 1 Stroke 1 Supervised learning 1