Keyphrases
- relational algebra
- query language
- data model
- algebraic expressions
- finer granularity
- boolean algebra
- algebraic operations
- algebraic structure
- multiscale
- artificial neural networks
- database
- social networks
- computer vision
- security policies
- real numbers
- data sets
- image processing
- machine learning
- set theory
- expressive power
- e learning
- learning environment
- database systems