Keyphrases
- relation extraction
- automatic extraction
- information extraction
- domain specific
- named entities
- dependency tree
- semantic relations
- semantic features
- semantic role labeling
- question answering
- reference resolution
- named entity recognition
- dependency trees
- broad coverage
- tree kernels
- conditional random fields
- structured data
- wordnet
- unsupervised learning
- higher level
- natural language processing
- artificial intelligence
- machine learning