Keyphrases
- genia corpus
- named entities
- text mining
- named entity recognition
- information extraction
- relation extraction
- co occurrence
- question answering
- named entity extraction
- natural language processing
- unsupervised learning
- text documents
- machine learning
- chinese named entity recognition
- annotated corpus
- noun phrases
- person names
- image retrieval
- text corpus
- global context
- feature selection
- web news
- search engine
- automatic extraction
- maximum entropy
- news corpus
- information retrieval
- database