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Shatabdi Sinha
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Mathematics

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A Unified Distance Approach for Ranking Fuzzy Numbers and Its Comparative Reviews Prasad, Shiv Prasad; Shatabdi Sinha
Journal of the Indonesian Mathematical Society VOLUME 29 NUMBER 3 (NOVEMBER 2023)
Publisher : IndoMS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jims.29.3.1337.347-371

Abstract

Even though a large number of research studies have been presented in recent years for ranking and comparing fuzzy numbers, the majority of existing techniques suffer from plenty of shortcomings. These shortcomings include counterintuitiveness, the inability to distinguish the fuzzy number and its partnered image, and the inconsistent ability to distinguish symmetric fuzzy numbers and fuzzy numbers that represent the compensation of areas. To overcome the cited drawbacks, this paper suggests a unified distance that multiplies the centroid value (weighted mean value) of the fuzzy number on the horizontal axis and a linear sum of thedistances of the centroid points of the left and right fuzziness areas from the originalpoint through an indicator. The indicator reflects the attitude of the left andright fuzziness of the fuzzy number, we can call it the indicator of fuzziness. To usethis technique, the membership functions of the fuzzy numbers need not be linear.That is the proposed approach can also rank the fuzzy numbers with non-linearmembership functions. The suggested technique is highly convenient and reliable todiscriminate the symmetric fuzzy numbers and the fuzzy numbers having compensationof areas. The advantages of the proposed approach are illustrated throughexamples that are common for a wide range of numerical studies and comparisonswith several representative approaches, that existed in the literature.
Co-Authors Prasad, Shiv Prasad