PKU_HIT: An Event Detection System Based on Instances Expansion and Rich Syntactic Features.
Shiqi LiPengyuan LiuTiejun ZhaoQin LuHanjing LiPublished in: SemEval@ACL (2010)
Keyphrases
- event detection
- syntactic features
- semantic features
- semantic role labeling
- video event detection
- syntactic structures
- part of speech
- feature set
- semantic roles
- event recognition
- activity recognition
- active database management systems
- machine learning
- learning algorithm
- dependency parsing
- visual information
- wordnet
- low level
- domain knowledge
- natural language
- high level