Keyphrases
- spatial databases
- spatial queries
- range queries
- spatial index
- spatial data
- r tree
- spatial objects
- query processing
- database
- multi dimensional
- efficient processing
- geographic information systems
- spatial database systems
- query evaluation
- third party
- geographical information systems
- algorithms and data structures
- index structure
- keywords
- query result
- data objects
- spatial relationships
- user queries
- k nearest neighbor
- knn
- data sets