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• A New Score Function of IFSs and its Application in the Evaluation of Software Quality

  Ngoc Minh Chau, Nguyen Xuan Thao, Nguyen Thi Thao

  Received: Aug 07, 2023 / Published: Jun 28, 2024

   Abstract PDF

  The score function is used to compare intutionistic fuzzy numbers. In this paper, a novel score function of intuitionistic fuzzy sets (IFSs) is investigated. The novel score function was constructed by combining the polynomial and exponential functions working on the degree of membership and degree of non-membership of intuitionistic fuzzy sets. Then, the newly obtained measure overcomes the limitations of some existing score functions. Next, we applied the new measure to construct a method to deal with a multi-criteria decision-making (MCDM) problem. Finally, this MCDM model was used to assess the quality of software projects. The results showed that the new measure was well done and better than other score functions in some cases. This demonstrate the effectiveness of the newly proposed method.

• A Novel Multi-Criteria Decision Making Method for Evaluating Water Reuse Applications under Uncertainty

  Le Thi Nhung, Nguyen Xuan Thao

  Received: Feb 13, 2019 / Published: Feb 13, 2019

   Abstract PDF

  There are currently many places in the world where water is scarce. Therefore, water reuse has been mentioned by many researchers. Evaluation of water reuse applications is the selection of the best water reuse application of the existing options; it is also one of the applications of multi-criteria decision making (MCDM). In this paper, we introduce a new dissimilarity measure of picture fuzzy sets. This new measure overcomes the restriction of other existing dissimilarity measures of picture fuzzy sets. Then, we apply it to the multi-criteria decision making. Finally, we refer to a new method for selecting the best water reuse application of the available options by using the picture fuzzy MCDM.