Abstract

Comprehensive evaluation model is a useful model in practical application. To extend the fuzzy comprehensive evaluation model is a very meaningful thing which can promote the perfection of a comprehensive evaluation of the theory and application areas. In this paper, according to the theory of fuzzy comprehensive evaluation, we extend the max–min model to a new multi-level max–min fuzzy comprehensive evaluation model. With introducing the extended max–min model, we improved the max–min model of the fuzzy comprehensive evaluation, and get the combination of subjective and objective weights effectively. Then we build the multi-level max–min fuzzy comprehensive evaluation model based on comprehensive weights. In the end, it had drawn the evaluation of scores and the sorting, according to the improved max–min fuzzy comprehensive evaluation model which can further promote the application areas and rough set theory.

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