´´à n this paper we present a definition of a domain relational calculus for fuzzy relational databases using the GEFRED model as a starting point. It is possible to define an equivalent fuzzy tuple relational calculus and consequently we achieve the two query language levels that Codd designed for
β¦ LIBER β¦
A domain calculus for fuzzy relational databases
β Scribed by Billy P Buckles; Frederick E Petry; Harvinder S Sachar
- Book ID
- 107901378
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 939 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0165-0114
No coin nor oath required. For personal study only.
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A new definition of Fuzzy Relational Database is given by using logical concepts. With this definition it is possible to consider several kinds of fuzziness for the database attributes. A Domain Calculus-based query language is also established for the model. It allows us to formulate several types