Results 191 to 200 of about 185,811 (251)
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The notion of roughness of a fuzzy set

Fuzzy Sets and Systems, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Inés Couso   +2 more
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Covering based q-rung orthopair fuzzy rough set model hybrid with TOPSIS for multi-attribute decision making

Journal of Intelligent & Fuzzy Systems, 2019
In this manuscript we develop a comprehensive model to tackle decision making problems where strong points of view are in the favor and against some projects, entities or plans.
A. Hussain, M. Ali, T. Mahmood
semanticscholar   +1 more source

On Rough Fuzzy Set Algebras

2006
A rough fuzzy set is a pair of fuzzy sets resulting from the approximation of a fuzzy set in a crisp approximation space. A rough fuzzy set algebra is a fuzzy set algebra with added dual pair of rough fuzzy approximation operators. In this paper, structures of rough fuzzy set algebras are studied. It is proved that if a system $({\cal F}(U), \cap, \cup,
Wei-Zhi Wu 0001, You-Hong Xu
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Axiomatics for fuzzy rough sets

Fuzzy Sets and Systems, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nehad N. Morsi, Mohammed Mostafa Yakout
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An extension of rough fuzzy set

Journal of Intelligent & Fuzzy Systems, 2016
In rough fuzzy set, equivalence relation is used for approximating the target concept, which is a fuzzy set. In this paper, we extend the equivalence relation in rough fuzzy set to tolerance relation, and propose an extended model named tolerance rough fuzzy set.
Junhai Zhai, Sufang Zhang, Yao Zhang
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Attribute reduction for multi-label learning with fuzzy rough set

Knowledge-Based Systems, 2018
In multi-label learning, each sample is related to multiple labels simultaneously, and attribute space of samples is with high-dimensionality. Therefore, the key issue for attribute reduction in multi-label data is to measure the quality of each ...
Yaojin Lin   +3 more
semanticscholar   +1 more source

Where Rough Sets and Fuzzy Sets Meet

Fundamenta Informaticae, 2015
The title of this note announces an attempt at pointing to particular points where rough set and fuzzy set approaches to decision making are close to each other, the closeness meaning that formal approaches to behaviour of the two at those points can be given in an analogous form. This by no means implies that the two can be unified as theories dealing
Lech Polkowski, Maria Semeniuk-Polkowska
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On L–Fuzzy Rough Sets

2004
In this paper we introduce a new class of algebras, called extended residuated lattices. Basing on this structure we present an algebraic generalization of approximation operators and rough sets determined by abstract counterparts of fuzzy logical operations.
Anna Maria Radzikowska, Etienne E. Kerre
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Rough Soft Sets in Fuzzy Setting

2013
Fuzzy set theory, soft set theory and rough set theory are mathematical tools for dealing with uncertainties and are closely related. In the paper, we define the notion of a soft set in L-set theory, introduce several operators for L-soft set theory, and investigate the rough operators on the set of all L-soft sets induced by the rough operators on L X
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A fuzzy rough set-based feature selection method using representative instances

Knowledge-Based Systems, 2018
The fuzzy rough set theory has been widely used to deal with uncertainty in real-valued or even complex data, in which one of the most concerned issues is feature selection.
Xiao Zhang   +3 more
semanticscholar   +1 more source

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