Keyphrases
- part of speech
- pos tagging
- n gram
- phrase structure
- natural language processing
- unsupervised grammar induction
- word sense disambiguation
- linguistic information
- text documents
- syntactic categories
- noun phrases
- training corpus
- natural language
- tf idf
- chinese word segmentation
- pos taggers
- wordnet
- probabilistic model
- penn treebank
- similarity measure