Keyphrases
- query processing
- database systems
- data management
- aggregate queries
- multidatabase environment
- efficient query processing
- efficient processing
- r tree
- index structure
- user queries
- range queries
- cost model
- query evaluation
- database query processing
- processing queries
- continuous queries
- query optimization
- similarity search
- xml data
- databases
- materialized views
- data sets
- query processor
- query types
- neural network