Keyphrases
- xml data
- data model
- approximate query answering
- xml documents
- query optimization
- relational databases
- query language
- on line analytical processing
- xml databases
- xml queries
- data cube
- relational and xml data
- xml schema
- query evaluation
- semi structured data
- business intelligence
- query processing
- relational data
- keyword search
- efficient query processing
- data warehouse
- xpath queries
- data warehousing
- querying xml data
- path expressions
- queries on xml data
- query execution
- data integration
- multi dimensional
- labeling scheme
- database management systems
- object oriented
- database
- query decomposition
- native xml
- data sources
- standard for data exchange
- databases
- semi structured
- data structure