- Journal Article
Authors: Do, Anh Duc; Luu, Huu Van; Yu, Vincent F.; Chou, Shuo-Yan; Ngo, Van Hien; Ngo, The Chi; Dinh, Van Toan; Luu, Quoc Dat (2021) - Supplier selection and segmentation are crucial tasks of companies in order to reduce costs and increase the competitiveness of their goods. To handle uncertainty and dynamicity in the supplier segmentation problem, this research thus proposes a new dynamic generalized fuzzy multi-criteria group decision making (MCGDM) approach from the aspects of capabil- ity and willingness and with respect to environmental issues. The proposed approach defines the aggregated ratings of alternatives, the aggregated weights of criteria, and the weighted ratings by using generalized fuzzy numbers with the effect of time weight. Next, we determine the ranking order of alternatives via a popular centroi...
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- Final Year Project (FYP)
Authors: Do, Hai Anh; Advisor: Luu, Quoc Dat (2016) - This thesis shows the status of freight forwarding market. This thesis will indicate the role of freight to human life and situation; trend of freight forwarding market. When there are much many forwarders around the world, the market become intense competition. The shipping price and volume of each company is sharply declined. In this market, forwarders have to improve quality of product and especially quality ofservice. Furthermore, this thesis shows solutions to improve quality of services in competitive market to satisíy customers. The relationship
between these service components and customer satisíaction is also investigated through analysis. As the result showed, these three c...
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- Article
Authors: Yu, Vincent F.; Luu, Huu Van; Luu, Quoc Dat; Ha, Thi Xuan Chi; Chou, Shuo-Yan; Truong, Thi Thuy Duong (2017) - Ranking fuzzy numbers is an important component in the decision-making process with the last few
decades having seen a large number of ranking methods.
Ezzati et al. (Expert Syst Appl 39:690–695, 2012) proposed
a revised approach for ranking symmetric fuzzy numbers
based on the magnitude concepts to overcome the shortcoming of Abbasbandy and Hajjari’s method. Despite its
merits, some shortcomings associated with Ezzati et al.’s
approach include: (1) it cannot consistently rank the fuzzy
numbers and their images; (2) it cannot effectively rank
symmetric fuzzy numbers; and (3) it cannot rank nonnormal fuzzy numbers. This paper thus proposes a revised
method to rank generalized ...
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- Article
Authors: Luu, Quoc Dat (2011) - -
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- Final Year Project (FYP)
Authors: Pham, Thi Phuong Ngoan; Advisor: Luu, Quoc Dat (2016) - Applying Lean thinking and approach in healthcare sevices management is
considered as an essential factor for effectiveness and efficiency o f healthcare
industry. The adoption and implementation o f Lean healthcare method enable
hospitals to adapt to the dramatically changing healthcare services industry. The
deductive approach, the qualitative research method, and the semi-structured
interview are employed to conduct the research.
This thesis aims at investigating the interpretation o f Lean principles
generally and 5S tools particularly in healthcare sevices management, with purpose
o f identifying wastes and problems in healthcare sevices process in 108 Military
Central H...
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- Conference paper
Authors: Luu, Quoc Dat; Canh, Chi Dung; Chou, Shuo-Yan; Yu, Vincent F (2013) - Determining the arithmetic operations of fuzzy numbers is a very important issue in fuzzy sets theory,decision process, data analysis, and applications. In 1985,
Chen formulated the arithmetic operations between generalized fuzzy numbers by proposing the function principle. Since then, researchers have shown an increased interest in generalized fuzzy numbers. Most of existing studies done using generalized fuzzy numbers were based on Chen’s (1985) arithmetic operations. Despite its merits, there were some shortcomings associated with Chen’s method. In order to overcome the drawbacks of Chen’s method, this
paper develops the extension principle to derive arithmetic operations between...
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- Article
Authors: Luu, Quoc Dat; F.Yua, Vincent (2014) - Ranking fuzzy numbers is a very important decision-making procedure in decision analysis and applications. The last few decades have seen a large number of approaches investigated for ranking fuzzy numbers, yet some of these approaches are non-intuitive and inconsistent. In 1992, Liou and Wang proposed an approach to rank fuzzy number based a convex combination of the right and the left integral values through an index of optimism.
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- Article
Authors: Ali, Mumtaz; Luu, Quoc Dat; Le, Hoang Son; Smarandache, Florentin (2018) - Neutrosophic set is a powerful general formal
framework which generalizes the concepts of classic set,
fuzzy set, interval-valued fuzzy set, intuitionistic fuzzy set,
etc. Recent studies have developed systems with complex
fuzzy sets, for better designing and modeling real-life
applications. The single-valued complex neutrosophic set,
which is an extended form of the single-valued complex
fuzzy set and of the single-valued complex intuitionistic
fuzzy set, presents difficulties to defining a crisp neutrosophic membership degree as in the single-valued neutrosophic set. Therefore, in this paper we propose a new
notion, called interval complex neutrosophic set (ICNS),
and exam...
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- Thesis
Authors: Phạm, Trúc Quỳnh; Advisor: Luu, Quoc Dat (2022) - Purpose – The research aims to address how the location problem for hyperscale data center can be efficiently solved in the current Vietnamese market. Design/methodology/approach – This study uses fuzzy analytic hierarchy process to analyze expert and non-experts’ opinions to calculate the criteria’s weights for the decision making model in selecting location for hyperscale data center. Two approach for solving fuzziness are used and evaluated. The explored criteria are environment, accessibility to resources, cost, labor, and local government support. A simulation was created to demonstrate the process to evaluate locations for managers and other practioners for future use. Finding –...
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- Article
Authors: Luu, Quoc Dat; Trinh, Thi Phuong; Kao, Hsing-Pei (2015) - Market segment selection and evaluation are critical marketing activities of all companies. To evaluate and select appropriate market segments, several decision makers and criteria must be involved in the decision process. This study proposes a new integrated fuzzy quality function deployment - QFD - to support the market segment selection and evaluation process.
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![[doi 10.1109%2FiFuzzy.2013.6825474] Dat, Luu Quoc; Chou, Shuo-Yan; Dung, Canh Chi; Yu, Vincent F. -- [IEEE 2013 International Conference on Fuzzy Theory and Its Applications (iFUZZY) - Taipei, Taiwan (2).pdf.jpg](/retrieve/9c33aa05-d078-453a-a3d9-53b94afe6374/%5bdoi%2010.1109%252FiFuzzy.2013.6825474%5d%20Dat%2c%20Luu%20Quoc%3b%20Chou%2c%20Shuo-Yan%3b%20Dung%2c%20Canh%20Chi%3b%20Yu%2c%20Vincent%20F.%20--%20%5bIEEE%202013%20International%20Conference%20on%20Fuzzy%20Theory%20and%20Its%20Applications%20%28iFUZZY%29%20-%20Taipei%2c%20Taiwan%20%282%29.pdf.jpg)
