Keyphrases
- xml documents
- xml data
- xml databases
- markup language
- xml format
- data model
- data exchange
- databases
- xml queries
- xml schema
- object oriented
- metadata
- data integration
- data representation
- relational databases
- semi structured
- object oriented databases
- data warehouse
- topic maps
- shape representation
- relational data
- data retrieval
- genetic algorithm
- xpath queries
- twig queries
- data sets
- xml query processing
- extensible markup language