Keyphrases
- information retrieval
- information retrieval systems
- query expansion
- search engine
- relevance feedback
- retrieval effectiveness
- retrieval model
- test collection
- text mining
- document retrieval
- information access
- language model
- machine learning
- term weighting
- vector space model
- information filtering
- latent semantic indexing
- database
- language modeling
- text categorization
- multiscale
- artificial intelligence
- real world
- real time