Keyphrases
- xml documents
- xml data
- xpath queries
- xml queries
- xml streams
- xml processing
- xpath expressions
- xml databases
- xml query languages
- path expressions
- relational databases
- data model
- semi structured data
- xml schema
- xml fragments
- query optimization
- xml trees
- query processing
- signature verification
- transitive closure
- native xml databases
- query language
- xml data management
- database systems
- keyword search
- relational data
- relational database systems
- information retrieval systems
- data exchange
- integrity constraints
- xml format
- structured data
- noise reduction
- query evaluation
- semantic query optimization
- data integration
- databases
- color images
- data management
- extensible markup language
- xml views
- semi structured
- query rewriting
- signature scheme
- markup language
- regular expressions
- filtering algorithm