Abstract
The limitations and disadvantages of the available intuitionistic fuzzy set scoring functions are investigated. Two improved methods for handling multi-criteria fuzzy decision-making problems are provided. They are based on the two theories of intuitionistic fuzzy set and cross entropy, with the adoption of cross entropy of the degree of membership from the degree of non-membership handling the effect of hesitancy degree. Score function method and weighted score function method are their names. This study presents and investigates a novel strategy for ranking interval-valued intuitionistic fuzzy sets. Examples using numbers are used to demonstrate the technique.
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