Results 21 to 30 of about 1,653,449 (187)
IEEE Access, 2023 Although the concepts of imprecision are captured by both rough sets and intuitionistic fuzzy sets, investigations combining these two ideas and their applications in incompletely ordered information systems are scarce.
Iftikhar Ul Haq +4 more
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Mathematics, 2019 The basic idea underneath the generalized intuitionistic fuzzy soft set is very constructive in decision making, since it considers how to exploit an extra intuitionistic fuzzy input from the director to make up for any distortion in the information ...
Muhammad Jabir Khan +4 more
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Maximum Consistent Block Based Variable Precision Rough Set Model and Attribute Reduction
Jisuanji kexue yu tansuo, 2020 In this paper, attribute reduction of incomplete information system is studied. Firstly, optimistic and pessimistic generalized variable precision rough set models based on maximal consistent blocks are constructed.
SUN Yan, MI Jusheng, FENG Tao, LI Leijun, LIANG Meishe
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Optimal Scale Selection and Rule Acquisition in Inconsistent Generalized Decision Multi-scale Ordered Information Systems [PDF]
Jisuanji kexue, 2023 Granular computing imitates human being's thinking.It shows great promise as a new way for data mining and know-ledge discovery in the context of big data.To solve the problem of knowledge acquisition in inconsistent generalized decision multi-scale ...
YANG Ye, WU Weizhi, ZHANG Jiaru
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Dual Three-way Concept Lattice Based on Composition of Concepts and Its Concept Reduction [PDF]
Jisuanji kexue, 2023 Three-way concept lattice not only represents the information jointly owned,but also represents the information that is not owned by each other by combining positive operators and negative operators.It is an extension of the classical concept lattice ...
LIU Jin, MI Jusheng, LI Zhongling, LI Meizheng
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Allocation Reductions in Inconsistent Decision Tables Based on Dominance Relations
Fuzzy Information and Engineering, 2015 In recent years, many methods have been proposed in order to deal with inconsistent information systems based on indiscernibility relations in rough set theory. However, a little attention has been paid to inconsistent ordered decision tables.
Wen-Sheng Du, Bao-Qing Hu
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Three-Way Concept Acquisition and Attribute Characteristic Analysis Based on Pictorial Diagrams [PDF]
Jisuanji kexue yu tansuo, 2022 Three-way concepts analysis, an effective tool for knowledge discovery, is a combination of three-way decision and formal concept analysis. Based on the connections between three-way concepts and formal concepts, the method of obtaining three-way ...
WAN Qing, MA Yingcang, LI Jinhai
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Incremental updating algorithm for computing core based on improved discernibility matrix [PDF]
, 2009 分析发现杨明教授给出的改进的差别矩阵中存在不必要的计算,为此提出了改进的差别矩阵定义和求核方法;在此基础上提出一种基于改进差别矩阵的核增量式更新算法,主要考虑对象动态增加情况下核的更新问题。理论分析表明改进的核增量式更新算法具有近线性时间和空间复杂度。实验结果显示算法有效可行。Through analysis,it was found out that the improved discernibility matrix presented by Professor Yang Ming had ...
张东站 +5 more
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An Algorithm for Computing All Rough Set Constructs for Dimensionality Reduction
Mathematics, 2023 In rough set theory, a construct is an attribute subset with the same ability to discern objects belonging to different classes as the whole set of attributes, while maintaining the similarity between objects belonging to the same class.
Yanir González-Díaz +3 more
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Incremental Versus Non-incremental: Data and Algorithms Based on Ordering Relations [PDF]
International Journal of Computational Intelligence Systems, 2011 Based on multi-dominance discernibility matrices, a non-incremental algorithm RIDDM and an incremental algorithm INRIDDM are proposed by means of Dominance-based Rough Set Approach. For the incremental algorithm, when a new object arrives, after updating
Xiuyi Jia +3 more
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