1 Retraction to: International Journal of Fuzzy Systems (2020) 22(2):400–413 https://doi.org/10.1007/s40815-019-00775-y

The Editor-in-Chief has retracted this article [1] because it significantly overlaps with a previously published article by Lin and Chang [2] and an article that simultaneously under consideration at another journal by Lin [3]. The author agrees with the retraction but disagrees with the wording of the retraction notice.