Measuring the quality of queries in the fuzzy relational databases.
Nan-Chen HsienDing-An ChiangRick Chu-Tai ChiangPublished in: Int. J. Intell. Syst. (2001)
Keyphrases
- relational databases
- database
- query evaluation
- query processing
- high level query language
- query language
- null values
- relational database management systems
- flexible querying
- result quality
- web search engines
- membership functions
- fuzzy sets
- fuzzy logic
- high quality
- imprecise information
- relational database systems
- database queries
- xml data
- response time
- fuzzy clustering
- multi criteria
- range queries
- efficient processing
- quality measures
- query logs
- data objects
- retrieval systems
- rough sets
- data sources
- search engine