Keyphrases
- flexible querying
- query language
- query processing
- fuzzy logic
- queries involving
- database
- data model
- imprecise information
- spatio temporal databases
- web search engines
- efficient query processing
- fuzzy sets
- free form
- three dimensional
- answering queries
- range queries
- data retrieval
- database queries
- databases
- query engine
- boolean queries
- efficient processing
- query interface
- query evaluation
- membership functions
- fuzzy rules
- user queries
- fuzzy numbers
- multimedia databases
- query formulation
- fuzzy clustering
- rdf data
- index structure
- recursive queries
- moving object databases
- search engine
- user specifies
- database querying
- rough sets
- multi dimensional
- query optimization
- query refinement
- surface reconstruction
- complex queries