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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.
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.
借助区间值模糊集中元素的区间指数，引入点算子，该算子将一区间值模糊集与一模糊集族联系起来。
A point operator by means of interval index of an element in the interval valued fuzzy set is introduced.
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