Keyphrases
- relation extraction
- weakly supervised
- automatic extraction
- information extraction
- named entities
- semantic relations
- domain specific
- named entity recognition
- question answering
- dependency tree
- semantic role labeling
- broad coverage
- supervised learning
- semantic features
- semi supervised
- dependency trees
- machine learning
- unsupervised learning
- generative model
- natural language
- feature selection
- learning algorithm
- knowledge discovery
- object recognition
- reference resolution