Abstract
When we dig into the uncertainty of a fuzzy set, there are two cases: the memberships are also fuzzy, and the elements are also fuzzy. So there exists a level-2 fuzzy set and type-2 fuzzy set which originally proposed by Zadeh. Then some scholars elaborated these two concepts, respectively.
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© 2011 Springer-Verlag Berlin Heidelberg
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Xu, J., Zhou, X. (2011). Bifuzzy Multiple Objective Decision Making. In: Fuzzy-Like Multiple Objective Decision Making. Studies in Fuzziness and Soft Computing, vol 263. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-16895-6_4
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DOI: https://doi.org/10.1007/978-3-642-16895-6_4
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-16894-9
Online ISBN: 978-3-642-16895-6
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