Keyphrases
- xml databases
- xml documents
- efficient storage
- xml data
- xml queries
- relational databases
- join algorithms
- scientific data
- relational database systems
- semi structured
- materialized views
- keyword search
- xpath queries
- xml schema
- relational database management systems
- databases
- xml query processing
- relational model
- formal model
- database technology
- main memory
- text mining
- information retrieval