Keyphrases
- multi objective
- keyword queries
- keyword search
- evolutionary algorithm
- keywords
- structured data
- structured databases
- objective function
- semantic information
- keyword search in relational databases
- conceptual model
- nearest neighbor
- semi structured
- database schema
- graph structure
- structured queries
- genetic algorithm
- information access
- database
- query language
- query processing
- xml databases
- information retrieval
- data mining
- query keywords