Keyphrases
- response time
- query result
- xpath queries
- xml data
- ranked retrieval
- query processing
- query evaluation
- query language
- relational databases
- xml documents
- query relaxation
- database
- database queries
- relational database management systems
- relational database systems
- data retrieval
- range queries
- update operations
- xml query languages
- database query languages
- web search engines
- content and structure
- database objects
- xml query processing
- xquery full text
- xml queries
- databases
- xml databases
- sql queries
- user queries
- keyword queries
- markup language
- result set
- data model
- selectivity estimation
- efficient processing
- tree patterns
- web search
- data integration
- query optimization
- metadata
- native xml databases
- xml format
- twig queries
- query engine
- data exchange
- semi structured
- xml trees
- query patterns
- xml schema
- query interface