Nguyen Xuan Thao

Work place: Department of applied Math-Informatics, Faculty of Information Technology. Vietnam National University of Agriculture (VNUA). Hanoi, Vietnam



Research Interests: Data Mining, Programming Language Theory, Theory of Computation, Computational Complexity Theory


X.T. Nguyen was born on October 28, 1982, in Thai Binh, Viet Nam. He received the B.Sc. and M.S Degrees, in Mathematic from The College of Science Vietnamese National University (VNU), Hanoi, in 2004 and 2009, respectively. Now, he is a lecturer, Department of applied Math-Informatics, Faculty of Information Technology, Vienam National University of Agriculture (VNUA), Viet Nam. He is teaching Calculus, Optimization, Fuzzy logic and its application. His research interests are Spectral theory of operator Fuzzy set theory, Rough set theory and application in data mining.

Author Articles
A New Similarity Measure of Picture Fuzzy Sets and Application in the Fault Diagnosis of Steam Turbine

By Ngoc Minh Chau Nguyen Thi Lan Nguyen Xuan Thao

DOI:, Pub. Date: 8 Oct. 2020

Picture fuzzy set is an extension of fuzzy sets and intuitionistic sets. It is demonstrated have a wide application in the fact and theoretical. In this paper, we propose some novel similarity measures between picture fuzzy sets. The novel similarity measure is constructed by combining negative functions of each degree membership of picture fuzzy set. This similarity is shown that is better other similarity measures of picture fuzzy sets in some cases. Next, we apply them in several pattern recognition problems. Finally, we apply them to find the fault diagnosis of the steam turbine.

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Fuzzy Entropy based MOORA Model for Selecting Material for Mushroom in Viet Nam

By Tran Trung Hieu Nguyen Xuan Thao

DOI:, Pub. Date: 8 Sep. 2019

The role of materials in the proper design and operation of products has been acknowledged. An incorrectly selected material for a certain product may cause premature failure of the final product. The right choice of available materials is very important to the success and competitiveness of manufacturing organizations. In Vietnam, tropical monsoon climate conditions greatly affect mushroom cultivation. The raw materials, additives and the ratio between them will also affect the quality and yield of mushrooms. Therefore, selecting the options for growing mushrooms or choosing good materials to grow mushrooms effectively is also a matter of concern. This is a problem of many decision-making problems. In this paper we multi-objective optimization on the basis of ratio analysis (MOORA) method to evaluate mushroom cultivation options in Vietnam.

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Evaluating Water Reuse Applications under Uncertainty: A Novel Picture Fuzzy Multi Criteria Decision Making Medthod

By Nguyen Xuan Thao

DOI:, Pub. Date: 8 Nov. 2018

Evaluation of water reuse options is also one of the applications of multi-criteria decision-making (MCDM) problems. In this paper, we refer to a new method for selecting the best water reuse option in the available options by using picture fuzzy MCDM.

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Some Measures of Picture Fuzzy Sets and Their Application in Multi-attribute Decision Making

By Nguyen Van Dinh Nguyen Xuan Thao

DOI:, Pub. Date: 8 Jul. 2018

To measure the difference of two fuzzy sets / intuitionistic sets, we can use the distance measure and dissimilarity measure between fuzzy sets. Characterization of distance/dissimilarity measure between fuzzy sets/intuitionistic fuzzy set is important as it has application in different areas: pattern recognition, image segmentation, and decision making. Picture fuzzy set (PFS) is a generalization of fuzzy set and intuitionistic set, so that it have many application. In this paper, we introduce concepts: difference between PFS-sets, distance measure and dissimilarity measure between picture fuzzy sets, and also provide the formulas for determining these values. We also present an application of dissimilarity measures in multi-attribute decision making.

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