Results 21 to 30 of about 782 (249)

Maximum Consistent Block Based Variable Precision Rough Set Model and Attribute Reduction

open access: yesJisuanji 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
doaj   +1 more source

Optimal Scale Selection and Rule Acquisition in Inconsistent Generalized Decision Multi-scale Ordered Information Systems [PDF]

open access: yesJisuanji 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
doaj   +1 more source

Dual Three-way Concept Lattice Based on Composition of Concepts and Its Concept Reduction [PDF]

open access: yesJisuanji 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
doaj   +1 more source

Three-Way Concept Acquisition and Attribute Characteristic Analysis Based on Pictorial Diagrams [PDF]

open access: yesJisuanji 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
doaj   +1 more source

An Algorithm for Computing All Rough Set Constructs for Dimensionality Reduction

open access: yesMathematics, 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
doaj   +1 more source

Incremental Versus Non-incremental: Data and Algorithms Based on Ordering Relations [PDF]

open access: yesInternational 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
doaj   +1 more source

An Algorithm on the Parameter Reduction of Soft Sets

open access: yesFuzzy Information and Engineering, 2016
Soft set theory is a mathematical tool for dealing with uncertain. In this paper, the parameter reduction of soft sets is investigated by means of the attribute reduction in information systems and its algorithm is obtained. Moreover, an example is given
Ning-Xin Xie
doaj   +1 more source

Increment algorithm for attribute reduction based on improvement of discernibility matrix [PDF]

open access: yes, 2012
An incremental updating algorithm for computing core based on an improved discernibility matrix definition is proposed to improve the efficiency of computing attribute core and attribute reduction in rough sets. This new algorithm is mainly used to solve
Feng, Shao-Rong   +3 more
core   +1 more source

Improved binary discernibility matrix attribute reduction algorithm in customer relationship management

open access: yes, 2010
This paper proposed an improved binary discernibility matrix, and attribute reduction algorithm based on the improved binary discernibility matrix.
Li, Ju   +5 more
core   +1 more source

Another View on Picture Fuzzy Soft Sets and Their Product Operations with Soft Decision-Making

open access: yesJournal of New Theory, 2022
Cuong [Picture Fuzzy Sets, Journal of Computer Science and Cybernetics 30 (4) (2014) 409–420] has introduced the concept of picture fuzzy soft sets (pfs-sets) relying on his definition and operations of picture fuzzy sets (pf -sets), in which there exist
Samet Memiş
doaj   +1 more source

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