Keyphrases
- xml documents
- xml data
- markup language
- xml databases
- xml schema
- metadata
- data model
- navigation systems
- data transformation
- data exchange
- relational data
- xml format
- robot navigation
- data representation
- labeling scheme
- semi structured data
- semistructured data
- information space
- databases
- xml queries
- land vehicle
- indoor environments
- structured data
- relational databases
- information retrieval
- relational database systems
- keyword search
- data integration
- relational database management systems
- dynamic environments
- object oriented
- data sources
- xml technology
- data mining