Keyphrases
- document centric
- xml documents
- databases
- xml data sources
- xml data
- query language
- markup language
- data model
- xml schema
- xml queries
- data exchange
- metadata
- xml query languages
- xml databases
- data retrieval
- relational databases
- recursive queries
- xml format
- object oriented
- query processing
- database
- native xml databases
- data representation
- data integration
- semi structured data
- query optimization
- xml trees
- labeling scheme
- query engine
- efficient query processing
- data transformation
- semistructured data
- storage and retrieval
- keyword search
- semi structured
- document structure
- extensible markup language
- search engine
- structured data