Keyphrases
- xml streams
- xpath queries
- keyword queries
- semantic query optimization
- xml data
- keyword search
- database schema
- structured data
- xml documents
- finite state automata
- xml fragments
- integrity constraints
- query optimization
- query interface
- xml databases
- query evaluation
- data model
- xml schema
- database
- deductive databases
- semi structured data
- efficient processing
- relational databases
- conceptual schema
- integrity checking
- databases
- object oriented
- xml queries
- semi structured
- data integration
- object oriented database systems
- information access
- data exchange
- keywords
- query language