Keyphrases
- query processing
- database systems
- data management
- query optimization
- index structure
- r tree
- efficient processing
- query evaluation
- efficient query processing
- aggregate queries
- query execution
- cost model
- range queries
- similarity search
- processing queries
- xml data
- multidatabase environment
- join queries
- query processor
- query types
- artificial intelligence
- mobile database
- neural network