Results 31 to 40 of about 7,556,433 (371)

Empirical analysis of rough set categorical clustering techniques based on rough purity and value set [PDF]

open access: yes, 2017
Clustering a set of objects into homogeneous groups is a fundamental operation in data mining. Recently, attention has been put on categorical data clustering, where data objects are made up of non-numerical attributes.
Abdulhasan, Raed abdulkareem   +5 more
core   +1 more source

Rough Neutrosophic Sets [PDF]

open access: yesNeutrosophic Sets and Systems, 2014
Both neutrosophic sets theory and rough sets theory are emerging as powerful tool for managing uncertainty, indeterminate, incomplete and imprecise information.
Said Broumi   +2 more
doaj  

Pythagorean fuzzy soft rough sets and their applications in decision-making

open access: yesJournal of Taibah University for Science, 2020
This paper aims to originate two new notions that are soft rough Pythagorean fuzzy set and Pythagorean fuzzy soft rough set, and investigate some important properties of soft rough Pythagorean fuzzy set and Pythagorean fuzzy soft rough set in detail ...
Azmat Hussain   +2 more
doaj   +1 more source

Decision-Theoretic Rough Set: A Fusion Strategy

open access: yesIEEE Access, 2020
Decision-theoretic rough set is a popular topic. However, such single-granulation rough set model is not able to handle complex information well, such as multi-source, multi-scale and high dimensions data.
Tao Yin   +5 more
doaj   +1 more source

An Attempt of Object Reduction in Rough Set Theory [PDF]

open access: yes, 2019
Attribute reduction is a popular topic in rough set theory; however, object reduction is not considered popularly. In this paper, from a viewpoint of computing all relative reducts, we introduce a concept of object reduction that reduces the number of ...
KUDO Yasuo, MURAI Tetsuya
core   +2 more sources

Evaluation of Xiashu loess slope stability in Zhenjiang area using different methods

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao, 2021
Slope instability is the result of the continuous evolution of the interaction of geological environment conditions in a certain area, so many factors should be considered when evaluating the stability of a slope. In this paper, the influence factors and
Jingjing QU   +4 more
doaj   +1 more source

Brain Image Segmentation Based on FCM Clustering Algorithm and Rough Set

open access: yesIEEE Access, 2019
In this paper, a new image segmentation method is proposed by combining the FCM clustering algorithm with a rough set theory. First, the attribute value table is constructed based on the segmentation results of FCM under different clustering numbers, and
Hong Huang   +4 more
semanticscholar   +1 more source

Picture Fuzzy Rough Set and Rough Picture Fuzzy Set on Two Different Universes and Their Applications

open access: yesJournal of Mathematics, 2020
The major concern of this article is to propose the notion of picture fuzzy rough sets (PFRSs) over two different universes which depend on δ,ζ,ϑ-cut of picture fuzzy relation ℛ on two different universes (i.e., by combining picture fuzzy sets (PFSs ...
Dliouah Ahmed, Binxiang Dai
doaj   +1 more source

Agents and rough sets [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2014
Rough set theory gives approximation models of complex knowledge structure. Agents are not present in the definition of the rough sets. Now we will show that a set of conflicting agents or active set can be used to model inconsistent decision in rough ...
Germano Resconi, Chris Hinde
doaj   +1 more source

Interval Neutrosophic Rough Set [PDF]

open access: yesNeutrosophic Sets and Systems, 2015
This Paper combines interval- valued neutrouphic sets and rough sets. It studies roughness in interval- valued neutrosophic sets and some of its properties.
Said Broumi, Florentin Smarandache
doaj  

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