Keyphrases
- xml documents
- xml data
- xpath queries
- xml queries
- data model
- shallow parsing
- structured data
- relational databases
- relational data
- xml processing
- xpath expressions
- path expressions
- sql queries
- semi structured data
- xml databases
- xml schema
- labeling scheme
- semantic information
- xml information retrieval
- database systems
- integrity constraints
- document structure
- database management systems
- query processing
- xml data management