Keyphrases
- group activities
- spatio temporal
- human actions
- action recognition
- collaborative activities
- group dynamics
- human activities
- activity recognition
- object recognition
- feature extraction
- training set
- group members
- image sequences
- online learning
- space time
- unsupervised manner
- machine learning
- user interaction
- human computer interaction
- mental states
- log files
- unsupervised learning
- active learning
- moving objects
- virtual environment
- expectation maximization
- collaborative learning
- supervised learning
- metadata
- e learning
- learning algorithm