定义一种新的模糊数直觉模糊集，同时给出了它的一些运算，并讨论了它与直觉模糊集、区间值直觉模糊集的关系。
We first define the fuzzy number intuitionistic fuzzy set and give its some operations. we also discuss the links of it and the interval valued intuitionistic fuzzy set, the intuitionistic fuzzy set.
目前，国内外一些学者对区间值模糊集的基础理论作了较深入的研究，并取得了一定的研究成果。
Recently, many researchers have discussed the fundamental theory of the interval-valued fuzzy sets and have obtained lots of meaningful results.
本文主要研究区间值模糊集的贴近度及其应用的问题。
In this paper, we will study the similarity measure of interval-valued fuzzy sets and its application problem.
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