Spatial Relational Algebra: An Extended Relational Algebra for Spatial Databases.
Alberto BelussiMauro NegriGiuseppe PelagattiPublished in: SEBD (1996)
Keyphrases
- relational algebra
- spatial databases
- relational model
- spatial data
- spatial objects
- relational database systems
- relational calculus
- expressive power
- spatial database systems
- data model
- spatial queries
- geographic information systems
- normal form
- geographical information systems
- r tree
- transitive closure
- road network
- query language
- complex objects
- object relational
- data quality
- database
- range queries
- spatio temporal data
- databases
- first order logic
- spatial information
- distributed systems
- neural network