关键词: Vague集, Fuzzy集, 相似度量, 未知度

Abstract: It is shown that four factors influencing Vague sets should be taken into account while calculating the similarity degree. Considering unknown degree between Vague numbers having some impact on similar degree, a new method of similarity measure between Vague sets is proposed. The validity and intuition of the new similarity measure are illustrated by simulation results.

Key words: Vague set, Fuzzy set, similarity measure, unknown degree