Keyphrases
- effective pruning
- xpath queries
- query language
- xml documents
- xml elements
- ranked retrieval
- xml data
- search strategy
- exact match
- query relaxation
- native xml databases
- query evaluation
- update operations
- xml query processing
- database
- query processing
- relational database systems
- web search engines
- data retrieval
- content and structure
- user queries
- data model
- search space
- efficient processing
- structured documents
- xml queries
- semi structured
- path expressions
- xquery full text
- keyword queries
- databases
- data exchange
- response time
- xml databases
- database queries
- database objects
- relational databases
- xml trees
- data sources
- xml retrieval
- database engine
- data integration
- xml query languages
- search algorithm
- structural join
- retrieval systems
- xml views
- twig queries
- document retrieval
- query patterns
- range queries
- relational database management systems