Results 11 to 20 of about 1,458,480 (298)

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   +3 more sources

ROUGH SETS, ROUGH RELATIONS AND ROUGH FUNCTIONS

open access: yesFundamenta Informaticae, 1996
The paper explores the concepts of approximate relations and functions in the framework of the theory of rough sets. The difficulties with the application of the idea of rough relation to general rough function definition are discussed. The definition of rough function for the domain of real numbers is introduced and its properties are investigated in ...
Zdzislaw Pawlak
openaire   +5 more sources

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

Full Rough Sets [PDF]

open access: yesAnnals of computer science and information systems, 2014
I will analyze Pawlak’s rough sets and extend the usual setting of characterization via an equivalence relation to any arbitrary relation, or a full relation. I extract the specification of rough sets by two operators: probable operator and sure operator.
Ray-Ming Chen
doaj   +4 more sources

A Note on Graded Granular Rough Sets

open access: yes, 2021
FRSA International Conference on Zdislaw Pawlak's 95th Birth Anniversary, November 2021. Abstract: Of the many generalizations of rough sets in the literature, graded rough sets are among the most controversial.
A MANI
core   +1 more source

Algebraic structures and lattice properties of hypergraph Pre-Rough sets‎ [PDF]

open access: yesMathematics and Computational Sciences
The study introduces and examines the concept of hypergraph pre-rough sets, which are developed by combining minimum soft descriptions with hypergraph structures.
Ganesan Gomathi   +3 more
doaj   +1 more source

Rough quotient in topological rough sets

open access: yesOpen Mathematics, 2019
In this paper, we introduce a rough quotient. Also, we present conditions ensuring that G/H are partitions of G. The rough projection map is also presented. We discuss first, second and third rough isomorphism theorems and other related results.
Alharbi Nof   +3 more
doaj   +1 more source

(𝓘, 𝓣) −Standard neutrosophic rough set and its topologies properties [PDF]

open access: yesNeutrosophic Sets and Systems, 2016
In this paper, we defined (𝓘, 𝓣) − standard neutrosophic rough sets based on an implicator 𝓘 and a tnorm 𝓣 on 𝑫∗ ; lower and upper approximations of standard neutrosophic sets in a standard neutrosophic approximation are defined.
Nguyen Xuan Thao, Florentin Smarandache
doaj   +1 more source

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

Rough analysis in lattices [PDF]

open access: yes, 1991
An outline of an algebraie generalization of the rough set theory is presented in the paper. It is shown that the majority of the basic concepts of this theory has an immediate algebraic generalization, and that some rough set facts are true in general ...
Iwinski, Tadeusz B.
core   +1 more source

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