Keyphrases
- text representation
- text categorization
- text retrieval
- information filtering
- concept learning
- bag of words
- text documents
- text classification
- vector space model
- keywords
- index terms
- document clustering
- text mining
- probabilistic model
- word sense disambiguation
- domain knowledge
- document representation
- natural language processing
- information retrieval systems
- information extraction
- machine learning
- feature extraction