Doan Dong Nguyen

Work place: Faculty of Information Technology, Ha Noi University of Agriculture (HUA), Vietnam



Research Interests: Computational Science and Engineering, Software Construction, Software Development Process, Software Engineering


D.D. Nguyen, born on the year 1986, in Haiduong, Vietnam, had B.Sc. in Electronic and telecommunication in 2009 and M.Sc. in Electronic in 2011 at Hanoi University of Science and Technology. Since 2010, he has been working as a lecturer at Software Engineering Department, Faculty of Information Technology, Hanoi University of Agriculture. He has done a project: “Studying and Implementation of an automatic system for controlling and monitoring water supply”, in 2012.

Author Articles
Rough Fuzzy Relation on Two Universal Sets

By Xuan Thao Nguyen Van Dinh Nguyen Doan Dong Nguyen

DOI:, Pub. Date: 8 Mar. 2014

Fuzzy set theory was introduced by L.A. Zadeh in 1965. Immediately, it has many applications in practice and in building databases, one of which is the construction of a fuzzy relational database based on similar relationship. The study of cases of fuzzy relations in different environments will help us understand its applications. In this paper, the rough fuzzy relation on Cartesian product of two universe sets is defined, and then the algebraic properties of them, such as the max, min, and composition of two rough fuzzy relations are examined. Finally, reflexive, α-reflexive, symmetric and transitive rough fuzzy relations on two universe sets are also defined.

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