Keyphrases
- ranked retrieval
- information retrieval
- xml documents
- retrieval functions
- databases
- information retrieval systems
- database
- retrieval strategies
- document retrieval
- retrieval model
- keyword search
- xml retrieval
- indexing techniques
- image retrieval
- query dependent
- book covers
- structured documents
- keyword queries
- book presents
- relational databases
- text retrieval
- retrieval systems
- data fusion
- test collection
- query expansion