A vague multivalued data dependency

Jaydev Mishra () and Sharmistha Ghosh ()
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Jaydev Mishra: College of Engineering and Management
Sharmistha Ghosh: Galgotias University

Fuzzy Information and Engineering, 2013, vol. 5, issue 4, 459-473

Abstract: Abstract The work in this paper is an application of vague set theory in relational databases. It is well known that integrity constraints like functional dependency, multivalued dependency, etc. play a key role in any database design. In the present work, the authors introduce a new definition of vague multivalued dependency(VMVD), called α-VMVD, on the basis of α-equality of tuples as defined in the recent work on vague functional dependency [1] in 2012. Next, the definition has been shown to be consistent and finally a set of sound and complete inference axioms have been designed and verified for the α-VMVD.

Keywords: Vague set; Similarity measure of vague sets; α-equality of vague tuples; Vague functional dependency; Vague multivalued dependency (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1007/s12543-013-0158-9

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