Keyphrases
- xml data
- query decomposition
- xml documents
- keyword search
- xml databases
- xml queries
- data model
- relational databases
- query optimization
- querying xml data
- query processing
- relational data
- xml schema
- query language
- distributed systems
- query evaluation
- object oriented database systems
- xml keyword search
- xpath queries
- semi structured data
- relational and xml data
- xml query processing
- object oriented
- data integration
- information retrieval systems
- labeling scheme
- xml elements
- distributed database systems
- database management systems