Keyphrases
- fuzzy sets
- graph theory
- fuzzy logic
- membership functions
- directed graph
- directed acyclic graph
- weighted graph
- graph structure
- query rewriting
- graph representation
- fuzzy numbers
- fuzzy clustering
- fuzzy rules
- random walk
- tree patterns
- regular path queries
- databases
- queries using views
- graph databases
- query answering
- connected components
- structured data
- xml documents