Fuzzy dependencies in approximation semantic based on the hedge algebras approach.

Đoàn Văn Ban, Trương Công Tuấn, Đoàn Văn Thắng

Abstract


In this paper, we study fuzzy dependencies among attributes, between the attributes and methods in a fuzzy object class basing on approximate semantic. Similarly in the clear/fuzzy relational database, we present the definition of fuzzy attribute dependency and fuzzy method dependency. Furthermore, we applied fuzzy dependencies to find quite approximate answers for Null queries on object-oriented database model with fuzzy information and uncertainty.


Keywords


Fuzzy object-oriented database, fuzzy dependencies, hedge algrebra.

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Journal of Computer Science and Cybernetics ISSN: 1813-9663

Published by Vietnam Academy of Science and Technology