Some Recent Defuzzification Methods

Kumar, Harendra

doi:10.4018/978-1-5225-1848-8.ch002

Cited by 15 publications

(7 citation statements)

References 10 publications

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“…Thus, we obtain a matrix of TFNs of each analysed group, which contains a lot of information that is difficult to analyse. Therefore, in agreement with Kumar [27], the matrix is defuzzified into a matrix of real and clear information since the uncertainty and vagueness of the information have been adequately managed. Crisp values are then obtained through the weighted average of the 3-tuple calculated as follows:…”

Section: Methodology 41 Fuzzy-hybrid Topsis Approachmentioning

confidence: 92%

“…In this study, a hybrid method based on a fuzzy approach and technique of similarity to ideal solution (TOPSIS) is used to measure the citizens' attitudes toward immigrants. This approach has had a growing interest in many fields, such as the hotel industry [27], education [8], green energy [28], logistics [29], social sciences [30], agriculture [31], and healthcare [31].…”

Section: Methodology 41 Fuzzy-hybrid Topsis Approachmentioning

confidence: 99%

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Comparing Regional Attitudes toward Immigrants in Six European Countries

Indelicato

Martín

Scuderi

2022

Axioms

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Many immigrants have risked their lives searching for a better future by crossing the Mediterranean Sea or the Atlantic Ocean. The Canary Islands became the centre of another emerging humanitarian and human rights crisis at Europe’s frontier in 2020. The study aims to analyse whether attitudes towards immigrants are affected by territories close to these humanitarian crises. To this end, the study is based on previous studies using a Fuzzy-Hybrid TOPSIS method to analyse attitudes toward immigrants. The synthetic indicator will be built upon a set of eight indicators that proxy the ethnic, economic, cultural, and religious threats experienced by the citizens. The International Social Survey Program (ISSP) dataset for the year 2013 for six countries, namely Belgium, Germany, Spain, France, United Kingdom, and Portugal, will be used. Results show that the attitude toward immigrants is affected by the territorial dimension as classified by the nomenclature of territorial units for statistics at NUTS2 and NUTS3 levels, and that attitudes are very different between those of some of the archipelagos and islands considered in the study. In particular, our results point out a sort of duality between the Balearic Islands—the most open territory toward immigrants, and Corse—the least open territory toward immigrants.

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Section: Methodology 41 Fuzzy-hybrid Topsis Approachmentioning

confidence: 92%

Section: Methodology 41 Fuzzy-hybrid Topsis Approachmentioning

confidence: 99%

Comparing Regional Attitudes toward Immigrants in Six European Countries

Indelicato

Martín

Scuderi

2022

Axioms

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“…Thus, the information matrix is processed through a clarification or defuzzification method to synthesize the information before applying other type of analysis, like, for example, the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) or the segment-attribute analysis. A good overview of the different existing defuzzification techniques that exist can be consulted in Kumar (2017). In essence, the idea is to convert the fuzzy information into a plausible or credible real number – crisp information.…”

Section: Methodsmentioning

confidence: 99%

A hybrid-fuzzy segmentation analysis of residents’ perception towards tourism in Gran Canaria

2019

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Tourist destinations have evolved throughout the world because governments invest on developing a tourist sector. The ultimate goal is to improve the quality of life of the local residents. For this reason, the impacts of tourism, both positive and negative, need to be measured from the local residents’ perspective. This study segments local residents according to their perception on tourism. A hybrid fuzzy segmentation method was applied to a sample of 504 local residents in Gran Canaria. Three representative profiles are obtained for two scenarios: (1) extreme tourist lovers, extreme tourist haters and ambivalents and (2) lovers, haters and ambivalents. Contributions to the body of knowledge and policy implications are discussed. A future research agenda is given.

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“…Dhanasekar, Rani, and Annamalai [19] regard the cost of transportation units as a trapezoidal intuitionistic fuzzy number (TRIFN) in the transportation industry and use fractions and fractional expectation functions to rank the costs effectively, solving the problem of incomplete and uncertain information. Kumar [20,21] proposed that blurring is a process of converting fuzzy sets or numbers into clear values or numbers. By using fuzzy modeling and fuzzy control systems, the fuzzy output of the system is transformed into clear values, and a blurring method is proposed.…”

Section: Fuzzy Evaluationmentioning

confidence: 99%

Research on Fuzzy Evaluation of Village Officials Based on Triangular Multiplication Preference Relationship Theory

Zhao,

Lin,

Zhang

et al. 2024

Journal of Applied Mathematics

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Our research objective is to establish a fuzzy evaluation mechanism for rural village officials in China using the theory of triangular multiplication preference relationships. Our survey targets villagers in rural areas of China where village autonomy is implemented. The research methods include a questionnaire survey, Delphi, and fuzzy evaluation methods. After research analysis and comparison of results, it is shown that for the evaluation index system of village officials constructed using the Delphi method, practical evaluation of village officials can be achieved through fuzzy comprehensive evaluation based on triangular multiplication preference relationships. Using the Delphi technique, this article first created a village official assessment index system. It then performed validity tests based on the Kaiser-Meyer-Olkin (KMO) and Bartlett index system, as well as reliability testing using the Cronbach coefficient. Then, the preference relationship of triangular multiplication and the root product square method were used to determine the weight of the questionnaire indicators, and consistency was judged. Then, based on the membership function, the fuzzy boundaries of various indicators are displayed to construct a fuzzy evaluation matrix. Finally, the evaluation matrix is subjected to the Zadeh operation to obtain a fuzzy, comprehensive evaluation result of the work performance of village officials. Our main contribution is establishing an evaluation index system for village officials through the Delphi method and achieving a practical evaluation of village officials using triangular multiplication preference relationships and fuzzy evaluation theory.

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Some Recent Defuzzification Methods

Cited by 15 publications

References 10 publications

Comparing Regional Attitudes toward Immigrants in Six European Countries

Comparing Regional Attitudes toward Immigrants in Six European Countries

A hybrid-fuzzy segmentation analysis of residents’ perception towards tourism in Gran Canaria

Research on Fuzzy Evaluation of Village Officials Based on Triangular Multiplication Preference Relationship Theory

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