Keyphrases
- xml documents
- xml data
- positive and negative
- databases
- data integration
- xml retrieval
- data model
- relational databases
- sql queries
- object oriented
- data transformation
- xml format
- xml queries
- data representation
- topic maps
- keyword search
- semi structured data
- markup language
- xml databases
- xml schema
- data exchange
- metadata
- data sets
- relational data
- xpath queries
- twig queries
- web pages
- document centric