Keyphrases
- named entities
- named entity recognition
- information extraction
- co occurrence
- natural language processing
- text mining
- relation extraction
- question answering
- named entity extraction
- person names
- linguistic features
- annotated corpus
- web news
- artificial intelligence
- noun phrases
- global context
- unsupervised learning
- databases
- knowledge representation
- pattern recognition
- information retrieval
- weakly supervised
- proper names