Keyphrases
- xml documents
- xml data
- markup language
- xml databases
- xml format
- relational databases
- xml schema
- metadata
- data model
- data exchange
- databases
- xml data management
- object oriented
- object oriented databases
- relational data
- extensible markup language
- data integration
- xml retrieval
- database systems
- case study
- update operations
- loosely structured
- semistructured data
- data types
- native xml
- information extraction
- semi structured
- document structure
- labeling scheme
- semi structured data
- comparative analysis
- database
- open source
- learning algorithm
- data sets