Deep learning 2 Back-tracking 1 Class hierarchies 1 Classification (of information) 1 Classification networks 1 Database Index 1 Face-image 1 Hierarchical Classification 1 Hierarchical classification 1 Image processing 1 Image search 1 Image-retrieval 1 Indexing 1 Knowledge management 1 Learning settings 1 Machine Learning 1 Many-class few-shot classification 1 Medicine 1 Metalearning 1 Multi-granularity 1 Multilayers perceptrons 1 Neural networks 1 Personnel training 1 Shot classification 1 Supervised learning 1 class hierarchy 1 many-class few-shot classification 1 meta-learning 1