Data Dependencies and Normalization of Intuitionistic Fuzzy Databases

  • Asma R. ShoraEmail author
  • Afshar Alam
Part of the Smart Innovation, Systems and Technologies book series (SIST, volume 27)


Intuitionistic Fuzzy sets can be considered as a generalization of Fuzzy sets. It is an emerging branch of research on soft computing. Intuitionistic Fuzzy logic adds the indeterminacy factor to the Fuzzy logic techniques and is thus capable to solve multi-state logical problems. It can help machines make complex decisions, involving degrees of uncertainty and imprecision. In order to facilitate efficient retrieval and updating, the data stored in the Intuitionistic Fuzzy databases has to have an efficient information base, which can be ensured by proper organization of data. In this paper, we propose Intuitionistic Fuzzy Normalization. This process decomposes the Intuitionistic fuzzy relation into sub relations, in order to provide an efficient storage mechanism. We define data dependencies and their properties and use the same for Normalizing Intuitionistic fuzzy databases.

Abbreviations: IF (Intuitionistic Fuzzy), IFS (Intuitionistic Fuzzy Set), IFDB (Intuitionistic Fuzzy database), IFFD (Intuitionistic Fuzzy Functional dependency), NF – IF or NF (IF) (Intuitionistic Fuzzy normal form)


Intuitionistic Fuzzy normal forms Intuitionistic Fuzzy key BCNF (IF) Soft Computing 


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© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Department of Computer ScienceJamia Hamdard UniversityNew DelhiIndia

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