Keyphrases
- xml documents
- xml data
- markup language
- metadata
- relational databases
- data model
- xml databases
- xml format
- data integration
- data exchange
- xml schema
- loosely structured
- object oriented
- semi structured
- xml retrieval
- databases
- relational data
- xml queries
- document centric
- data transformation
- ranked retrieval
- data mining query language
- real time
- semi structured documents
- extensible markup language
- content and structure
- semistructured data
- keyword search
- digital libraries
- information retrieval