Keyphrases
- response time
- database
- query processing
- relevance feedback
- query evaluation
- database queries
- keywords
- database objects
- user defined
- keyword search
- range queries
- user queries
- database applications
- user interaction
- query expansion
- information retrieval systems
- relational databases
- data structure
- data objects
- cd rom
- retrieval method
- complex queries
- query formulation
- efficient processing
- table of contents
- search engine