Representation learning Semantics 2 Activity trajectory 1 Aggregates 1 Attention mechanisms 1 Computer vision 1 Context path 1 Data distribution 1 Deep learning 1 Graph neural networks 1 Head 1 Image enhancement 1 Image recognition 1 Imbalanced Learning 1 Input space 1 Learning algorithms 1 Location-based social networks 1 Long-tailed Recognition 1 Long-tailed recognition 1 Magnetic heads 1 Multilevels 1 Real-world scenario 1 Residual Learning 1 Residual learning 1 Sampling rates 1 Similarity computation 1 Social sciences computing 1 Tail 1 Task analysis 1 Time measurement 1