New characteristics in FSQL, a fuzzy SQL for fuzzy databases
AIKED'05 Proceedings of the 4th WSEAS International Conference on Artificial Intelligence, Knowledge Engineering Data Bases
An expert system approach for the choice of appropriate data types in a Fuzzy Database
Journal of Intelligent & Fuzzy Systems: Applications in Engineering and Technology
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In this article we present a proposal for the application of fuzzy logic to conceptual modeling as an extension to the EER model. In order to do this, we extend some EER components to fuzzy ERR and we propose a notation for fuzzy representations, such as fuzzy values in the attributes, the degree in each value of an attribute and the degree in a set of values of diverse attributes, as well as fuzzy entities treated as a degree in all the instances of the entity. In the case of the degrees we have found that these may have a different meaning to that which we are trying to represent.