Keyphrases
- named entities
- named entity extraction
- information extraction
- named entity recognition
- co occurrence
- text mining
- relation extraction
- question answering
- natural language processing
- text documents
- text corpus
- unsupervised learning
- wordnet
- chinese named entity recognition
- noun phrases
- person names
- object recognition
- annotated corpus
- news corpus
- data sets
- data analysis
- word sense
- knowledge base
- semantic classes
- web news
- data mining