Abstract
A multi-attribute comprehensive evaluation with vagueness and imprecision can be made flexibly by intuitionistic fuzzy set (IFS). In this paper, the general operator in intuitionistic fuzzy comprehensive evaluation (IFCE) is presented in accordance with the theory that vague set (VS) is equivalent to IFS and fuzzy set (FS) is a special case of IFS. The general operator is more reasonable and easier than other operators in multi-attribute IFCE. At the same time, three methods to select the most desirable one(s) from IFS alternatives are put forward.
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