Keyphrases
- xml documents
- xml data
- markup language
- databases
- database
- xml format
- relational databases
- data exchange
- data representation
- loosely structured
- xpath queries
- xml databases
- xml queries
- semi structured documents
- twig queries
- data centric
- data sets
- xml schema
- data integration
- structured documents
- xml retrieval
- relational data
- labeling scheme
- data types
- data transformation
- building blocks
- object oriented
- interchange format
- data mining
- data mining query language