Keyphrases
- xml documents
- xml data
- markup language
- xml databases
- xml format
- metadata
- keyword search
- higher order
- databases
- object oriented
- lambda calculus
- labeling scheme
- xml queries
- data model
- data exchange
- data integration
- data representation
- topic maps
- control structure
- data transformation
- database
- extensible markup language
- open source
- relational databases
- structured data
- case study
- xml retrieval
- semi structured data
- interchange format