Keyphrases
- relation extraction
- dependency trees
- automatic extraction
- information extraction
- named entities
- domain specific
- broad coverage
- question answering
- semantic relations
- dependency tree
- reference resolution
- semantic features
- video sequences
- named entity recognition
- semantic role labeling
- visual features
- video data
- tree kernels
- information retrieval
- search engine
- low level features
- dependency parser
- key frames
- general purpose
- natural language processing
- artificial intelligence