Results 161 to 170 of about 185,811 (251)
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ROUGH FUZZY SETS AND FUZZY ROUGH SETS*

International Journal of General Systems, 1990
The notion of a rough set introduced by Pawlak has often been compared to that of a fuzzy set, sometimes with a view to prove that one is more general, or, more useful than the other. In this paper we argue that both notions aim to different purposes.
Henri Prade
exaly   +3 more sources

Generalized fuzzy rough sets

Information Sciences, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wei-Zhi Wu   +2 more
exaly   +3 more sources

On the generalization of fuzzy rough sets

IEEE Transactions on Fuzzy Systems, 2005
Rough sets and fuzzy sets have been proved to be powerful mathematical tools to deal with uncertainty, it soon raises a natural question of whether it is possible to connect rough sets and fuzzy sets. The existing generalizations of fuzzy rough sets are all based on special fuzzy relations (fuzzy similarity relations, T-similarity relations), it is ...
D S Yeung, Degang Chen, Wang Xizhao
exaly   +2 more sources

Fuzzy rough sets

Fuzzy Sets and Systems, 1992
The authors introduce the concept of a fuzzy rough set by fuzzifying rough sets. They show some easy properties of fuzzy rough sets.
Nanda, S., Majumdar, S.
exaly   +3 more sources

On Robust Fuzzy Rough Set Models

open access: yesIEEE Transactions on Fuzzy Systems, 2012
Rough sets, especially fuzzy rough sets, are supposedly a powerful mathematical tool to deal with uncertainty in data analysis. This theory has been applied to feature selection, dimensionality reduction, and rule learning.
Qinghua Hu, Shuang An, David Zhang
exaly   +2 more sources

Feature Selection With Local Density-Based Fuzzy Rough Set Model for Noisy Data

IEEE transactions on fuzzy systems, 2023
Fuzzy rough set theory can model uncertainty in data and has been applied to feature selection for machine learning tasks. The existence of noise in data is one of the reasons for data uncertainty. However, most classical fuzzy rough set models are often
Xiaoling Yang   +6 more
semanticscholar   +1 more source

A novel fuzzy rough set model with fuzzy neighborhood operators

Information Sciences, 2021
It is not widely acknowledged that none of existing fuzzy β -neighborhood operators satisfies the reflexivity when β ≠ 1 . To overcome this shortcoming, four types of fuzzy β -neighborhood operators are redefined, which shows that two redefined operators
Jin Ye, J. Zhan, Weiping Ding, H. Fujita
semanticscholar   +1 more source

Attribute reduction methods in fuzzy rough set theory: An overview, comparative experiments, and new directions

Applied Soft Computing, 2021
Fuzzy rough set theory is a powerful tool to deal with uncertainty information, which has been successfully applied to the fields of attribute reduction, rule extraction, classification tree induction, etc.
Zhong Yuan   +5 more
semanticscholar   +1 more source

Textures and fuzzy unit operations in rough set theory: An approach to fuzzy rough set models

open access: yesFuzzy Sets Syst., 2017
In this paper, an approach for the fuzzy rough set models is presented using textures and a fuzzy version of the unit operations of Wybraniec-Skardowska. First, a fuzzy unit operation and fuzzy unit co-operation on fuzzy lattices are defined.
Murat Diker
semanticscholar   +2 more sources

Roughness of a fuzzy set

Information Sciences, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mohua Banerjee, Sankar K. Pal
openaire   +1 more source

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