Keyphrases
- story link detection
- document representation
- topic detection and tracking
- bag of words
- document clustering
- dependency structure
- document collections
- data fusion
- vector space model
- word sense disambiguation
- text documents
- vector space
- keywords
- web documents
- semantic information
- latent semantic indexing
- language model
- feature selection
- semantic relations
- background knowledge
- noun phrases
- query expansion