Human motions 2 Motion features Aerobics teachings 1 Algebra 1 Attention 1 Deep learning 1 Depth integrations 1 Extraction 1 Forecasting 1 Human body motion 1 Human motion 1 Human postures 1 Inevitable trends 1 Iterative methods 1 Key-frame extraction 1 Key-frames 1 Lie Algebra 1 Lie-algebra 1 Modern information technologies 1 Motion estimation 1 Motion prediction 1 Real- time 1 Skeletal motions 1 Spatial aggregation 1 Spatio-temporal aggregation 1 Temporal aggregation 1