Equivalences Among Relational Expressions.
Alfred V. AhoYehoshua SagivJeffrey D. UllmanPublished in: SIAM J. Comput. (1979)
Keyphrases
- relational databases
- relational algebra
- relational data
- facial expressions
- data model
- relational model
- natural language
- relational calculus
- connected components
- neural network
- entity relationship
- multi relational
- relational learning
- artificial neural networks
- image segmentation
- functional dependencies
- information extraction
- database schema
- similarity measure
- information systems
- statistical relational learning
- data sets
- mathematical expressions
- probabilistic relational
- relational algebra expressions