Keyphrases
- relation extraction
- information extraction
- automatic extraction
- domain specific
- named entities
- semantic relations
- semantic role labeling
- dependency trees
- reference resolution
- question answering
- named entity recognition
- semantic features
- bayesian networks
- tree kernels
- broad coverage
- maximum likelihood
- dependency tree
- maximum entropy
- text mining
- data mining
- named entity recognizer
- knowledge based systems
- semi supervised
- artificial intelligence
- machine learning