Results 21 to 30 of about 5,204,108 (294)

Grid service discovery with rough sets [PDF]

open access: yes, 2008
Copyright [2008] IEEE. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services.
Wang, Z   +7 more
core   +7 more sources

A Novel Approach Toward Roughness of Bipolar Soft Sets and Their Applications in MCGDM

open access: yesIEEE Access, 2021
The uncertainty in the data is an obstacle in decision-making (DM) problems. In order to solve problems with a variety of uncertainties a number of useful mathematical approaches together with fuzzy sets, rough sets, soft sets, bipolar soft sets have ...
Rizwan Gul   +3 more
doaj   +1 more source

Attribute Reduction of Variable Precision Fuzzy Rough Set Based on Misclassification Cost [PDF]

open access: yesJisuanji kexue, 2022
Attribute reduction is a hot research issue in rough set.In this paper, how to reduce redundant attributes without increasing the misclassification cost is studied.Firstly, the minimum misclassification degree of variable precision fuzzy rough sets is ...
WANG Zi-yin, LI Lei-jun, MI Ju-sheng, LI Mei-zheng, XIE Bin
doaj   +1 more source

Autonomous clustering using rough set theory [PDF]

open access: yes, 2008
This paper proposes a clustering technique that minimises the need for subjective human intervention and is based on elements of rough set theory. The proposed algorithm is unified in its approach to clustering and makes use of both local and global ...
Chandra Kambhampati   +3 more
core   +1 more source

Training set edition using Rough Set Theory for Semi-supervised Classification

open access: yes, 2017
Semi-supervised Classification (SSC) is becoming an attractive research filed due to the emergence of real-world problems on which the number of unlabeled examples exceeds the labeled ones.
Nápoles, G.   +4 more
core   +4 more sources

Fuzzy-rough set models and fuzzy-rough data reduction

open access: yesCroatian Operational Research Review, 2020
Rough set theory is a powerful tool to analysis the information systems. Fuzzy rough set is introduced as a fuzzy generalization of rough sets. This paper reviewed the most important contributions to the rough set theory, fuzzy rough set theory and their
Hassan Mishmast Nehi   +1 more
doaj   +1 more source

Fermatean neutrosophic rough set [PDF]

open access: yesComputational Algorithms and Numerical Dimensions
In order to balance uncertainty, a reasonable approximation of a crisp set that yields lower as well as upper approximations of the set is made. Here, first, a special class of Fermatean Neutrosophic Set is devised by associating the Neutrosophic Set ...
S Bhuvaneshwari   +2 more
doaj   +1 more source

The Upper and Lower Approximations in Rough Subgroupoid of a Groupoid

open access: yesMoroccan Journal of Pure and Applied Analysis, 2018
In this article, we introduce the concept of rough subgroupoid of a groupoid as a generalization of a rough subgroup and give some features about the lower and the upper approximations in a groupoid [1]. We give some of the characterization of them.
Tasbozan H., Icen I.
doaj   +1 more source

The use of rough rules in the selection of topographic objects for generalizing geographical information

open access: yesPolish Cartographical Review, 2020
Selection is a key element of the cartographic generalisation process, often being its first stage. On the other hand it is a component of other generalisation operators, such as simplification.
Fiedukowicz Anna
doaj   +1 more source

Rough Standard Neutrosophic Sets: An Application on Standard Neutrosophic Information Systems [PDF]

open access: yesNeutrosophic Sets and Systems, 2016
A rough fuzzy set is the result of the approximation of a fuzzy set with respect to a crisp approximation space. It is a mathematical tool for the knowledge discovery in the fuzzy information systems.
Nguyen Xuan Thao   +2 more
doaj   +1 more source

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