Keyphrases
- query processing
- query optimization
- multidatabase environment
- processing queries
- efficient query processing
- similarity search
- index structure
- aggregate queries
- query execution
- xml data
- dynamic environments
- data management
- database systems
- cost model
- real time
- database query processing
- highly dynamic
- social networks
- r tree
- user queries
- knowledge base
- robotic systems
- multi dimensional
- inverted index
- database
- data mining
- real world
- data sets
- mobile robot
- query language