Keyphrases
- text retrieval
- test collection
- document collections
- retrieval systems
- information retrieval
- retrieval model
- cross language
- latent semantic indexing
- image retrieval
- inverted file
- keyword extraction
- document retrieval
- query expansion
- multimedia retrieval
- term weighting
- cross language information retrieval
- language model
- automatic query expansion
- relevant documents
- search tasks
- information access
- retrieval effectiveness
- databases
- information retrieval systems