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

摘要： 指出了影响Vague集相似度量的四个要素，考虑了未知度对相似度的影响，提出了一种新的Vague集相似度量的方法，通过实例说明该方法的有效性和直观性。

关键词: Vague集, Fuzzy集, 相似度量, 未知度