Keyphrases
- xpath queries
- ranked retrieval
- data retrieval
- xml documents
- relational database management systems
- query evaluation
- query relaxation
- query language
- query processing
- xml query languages
- relational database systems
- xml queries
- database objects
- xml data
- update operations
- relational databases
- path expressions
- range queries
- twig queries
- xml query processing
- structured documents
- databases
- keyword queries
- database
- data model
- data integration
- xquery full text
- response time
- web search engines
- database queries
- data sources
- efficient processing
- markup language
- native xml databases
- database query languages
- database engine
- semi structured
- object oriented
- content and structure
- xml retrieval
- xpath expressions
- xml databases
- metadata
- xml trees
- query patterns
- rdf data