Keyphrases
- database
- fuzzy sets
- fuzzy set theory
- membership functions
- fuzzy logic
- databases
- aggregate functions
- fuzzy numbers
- fuzzy rules
- rough sets
- information retrieval
- indexing method
- fuzzy clustering
- content based retrieval
- fuzzy controller
- relational databases
- fuzzy systems
- fuzzy neural network
- join algorithms
- object retrieval
- data mining