模糊粗糙集中依参数粗糙度的新算法
首发时间:2006-08-28
摘要:自M.Banerjeehe 和S.K.pal提出了模糊粗糙集的基本模型以来,模糊粗糙集一直是粗糙集理论研究的一个重要课题。 本文在模糊粗糙集基本模型基础上做了进一步探讨,首先从 -模糊截集的概念出发,提出了基于 -模糊截集的上、下近似的概念,进一步利用它们给出了依参数粗糙度的新计算方法,从而使模糊粗糙集中依参数粗糙度得到了显著的改进,并通过具体实例证明了该方法的有效性,特别是当处理的数据较多时该方法尤为优越。
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A new method for the roughness measure of a fuzzy set
Abstract:It is very important to study fuzzy rough sets in rough sets theory, since the definition of fuzzy rough sets introduced by M. Banerjee and S.K. pal in [1]. In this paper, fuzzy rough sets based on -fuzzy cut sets were studied continuously, and the definition of upper and lower approximation based on -fuzzy cut sets were gave. Furthermore, a new method of the roughness measure of a fuzzy set was proposed to simplify it. Finally, it was shown that the method was valuable by the example.
Keywords: rough fuzzy set roughness measure of a fuzzy set -fuzzy cut set
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No.8062748631156752****
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