On similarity relations in fuzzy relational databases
β Scribed by Henry B Potoczny
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 221 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0165-0114
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π SIMILAR VOLUMES
This paper first introduces a new definition for the conformance of tuples existing in a similarity-based fuzzy database relation. Then the formal definitions of fuzzy functional and multivalued dependencies are given on the basis of the conformance values presented here. These dependencies are defi
Until now, the idea of a fuzzy database has been investigated along different lines: Some authors have dealt with the imprecision of attribute values by modeling, using fuzzy similarity relations, the extent to which these values could be regarded as interchangeable. Others have used possibility di
The queries on type-2 fuzzy relational databases may get non-reasonable answers, and as pointed out by Buckles, a tuple's membership value is not static but is a measure of the appropriateness of that tuple to a given query. Here, we use two supplementary attributes/,t, and le to model the concepts
In this paper, Shenoi and Melton's model of fuzzy relational database is considered. Proximity relation, being an important tool of the model, is characterized theoretically. An optimal -distribution in [0, 1] and consequently the domain partition are deΓΏned, and studied with examples on fuzzy queri