Keyphrases
- relation extraction
- automatic extraction
- information extraction
- semantic relations
- named entity recognition
- text summarization
- named entities
- domain specific
- dependency trees
- semantic features
- semantic role labeling
- reference resolution
- question answering
- broad coverage
- dependency tree
- tree kernels
- natural language processing
- natural language
- knowledge acquisition
- high level
- higher order
- annotated corpus