Classification (of information) Active Learning 1 Artificial intelligence 1 Class hierarchies 1 Classification networks 1 Cost effective 1 Cost effectiveness 1 Costs 1 Deep learning 1 Hierarchical classification 1 Knowledge management 1 Label correlations 1 Label space 1 Label sparsity 1 Learning settings 1 Learning systems 1 Many-class few-shot classification 1 Metalearning 1 Multi-granularity 1 Multi-instance learning 1 Multi-label active learning 1 Multi-labels 1 Multilayers perceptrons 1 Neural networks 1 Personnel training 1 Representative 1 Shot classification 1 Supervised learning 1 Uncertainty 1 class hierarchy 1