A New Group Decision-making Method Based on Fuzzy Set Operations

Naim Çağman, Xiaoting Wang


In this study we suggest a new group decision-making method which is
based on some basic fuzzy set operations. By using this method, we
can get two types of results. First, we can identify which
alternative is the best. The second result, a crucial point of this
work, is the screening of decision-makers. The decision-makers
should be serious and responsible in giving their opinions otherwise
the process will eliminate them because of their inappropriate
evaluations to the alternatives compared with that of the other
decision-makers. We also discuss an application to demonstrate the
process of the method.


Fuzzy sets; $\alpha$-level set; Group decision-making.

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