Keyphrases
- event detection
- topological features
- link prediction
- social networks
- text streams
- social network analysis
- random walk
- video event detection
- persistent homology
- network structure
- video analysis
- video surveillance
- event recognition
- complex networks
- activity recognition
- supervised learning
- data sets
- topological map
- composite events
- scan statistic
- active database management systems
- semantic event detection