Keyphrases
- xpath queries
- xml documents
- query language
- query relaxation
- ranked retrieval
- xml data
- database
- xslt stylesheets
- data retrieval
- xml query languages
- query evaluation
- data model
- query patterns
- query processing
- content and structure
- xml trees
- web search engines
- database objects
- relational database management systems
- markup language
- xml query processing
- keyword queries
- xml databases
- databases
- data sources
- database queries
- xpath expressions
- twig queries
- response time
- keyword search
- range queries
- native xml databases
- metadata
- relational databases
- xml queries
- update operations
- user queries
- aggregate queries
- query result
- structured documents
- data management
- topic maps
- xml format
- database engine
- efficient processing
- data exchange
- extensible markup language
- information retrieval
- relational database systems