Keyphrases
- text retrieval
- data retrieval
- information retrieval
- image retrieval
- data access
- databases
- inverted file
- document retrieval
- query expansion
- automatic query expansion
- query processing
- retrieval systems
- document collections
- retrieval model
- information retrieval systems
- relevance feedback
- retrieval quality
- text mining
- xml databases
- web databases
- database