Keyphrases
- xml documents
- document centric
- xml data sources
- databases
- xml data
- query language
- markup language
- multivalued dependencies
- relational databases
- data model
- xml format
- database
- data retrieval
- xml queries
- native xml databases
- xml query languages
- object oriented
- data integration
- xml fragments
- object oriented databases
- functional dependencies
- xml databases
- xml schema
- data exchange
- query interface
- metadata
- semi structured
- efficient query processing
- xml trees
- semi structured data
- semistructured data
- keyword queries
- labeling scheme
- xpath queries
- extensible markup language
- conflict free
- database querying
- xml retrieval
- data sources
- penn treebank