A novel soft rough fuzzy set: Z-soft rough fuzzy ideals of hemirings and corresponding decision making

A novel soft rough fuzzy set: Z-soft rough fuzzy ideals of hemirings and corresponding decision making
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一种新颖的软粗糙模糊集:Hemirings的Z-软粗糙模糊理想及其相应的决策

DOI:
10.1007/s00500-016-2119-9
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发表时间:
2016-03
期刊:
影响因子:
4.1
通讯作者:
Kuanyun Zhu
Kuanyun Zhu
中科院分区:
计算机科学3区
文献类型:
--
作者:
Jianming Zhan;Kuanyun Zhu

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本文引入半环的Z-软粗糙模糊集的概念,它是软粗糙集和粗糙模糊集概念的推广。指出该新概念消除了Feng-soft粗糙模糊集和Meng-soft粗糙模糊集中满软集所要求的限制条件。本文研究了半环中的粗糙度。研究了半环上的软粗糙模糊运算。特别地,Z-下和Z-上软粗糙模糊理想(k-理想,h-理想,强h-理想)进行了研究。最后,提出了一种基于Z软粗糙模糊集的决策方法,并给出了一个实例。分析了相应的基于Z软粗糙模糊集的决策方法。
This paper introduces the notion of Z-soft rough fuzzy sets of hemirings, which is an extended notion of soft rough sets and rough fuzzy sets. It is pointed out that this novel concept removes the limiting condition that full soft sets require in Feng-soft rough fuzzy sets and Meng-soft rough fuzzy sets. We study roughness in hemirings with respect to a ZS-approximation space. Some new soft rough fuzzy operations over hemirings are explored. In particular, Z-lower and Z-upper soft rough fuzzy ideals (k-ideals, h-ideals, strong h-ideals) are investigated. Finally, we put forth an approach for decision making problem based on Z-soft rough fuzzy sets and give an example. Corresponding decision making methods based on Z-soft rough fuzzy sets are analysed.
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