Results 11 to 20 of about 3,229 (278)

New Neighborhood Based Rough Sets [PDF]

open access: yes, 2015
Neighborhood based rough sets are important generalizations of the classical rough sets of Pawlak, as neighborhood operators generalize equivalence classes. In this article, we introduce nine neighborhood based operators and we study the partial order relations between twenty-two different neighborhood operators obtained from one covering.
Lynn D'eer, Chris Cornelis
openaire   +3 more sources

On Covering-Based Rough Intuitionistic Fuzzy Sets

open access: yesMathematics, 2022
Intuitionistic Fuzzy Sets (IFSs) and rough sets depending on covering are important theories for dealing with uncertainty and inexact problems. We think the neighborhood of an element is more realistic than any cluster in the processes of classification ...
R. Mareay   +3 more
doaj   +2 more sources

Some New Covering-Based Multigranulation Fuzzy Rough Sets and Corresponding Application in Multicriteria Decision Making

open access: yesJournal of Mathematics, 2021
Multigranulation rough set theory is an important tool to deal with the problem of multicriteria information system. The notion of fuzzy β-neighborhood has been used to construct some covering-based multigranulation fuzzy rough set (CMFRS) models through
Zaibin Chang, Lingling Mao
doaj   +2 more sources

Covering Fuzzy Rough Sets via Variable Precision

open access: yesJournal of Mathematics, 2021
Lately, covering fuzzy rough sets via variable precision according to a fuzzy γ-neighborhood were established by Zhan et al. model. Also, Ma et al. gave the definition of complementary fuzzy γ-neighborhood with reflexivity.
Mohammed Atef, A. A. Azzam
doaj   +2 more sources

Port throughput influence factors based on neighborhood rough sets: An exploratory study

open access: yesJournal of Industrial Engineering and Management, 2015
Purpose: The purpose of this paper is to devise a efficient method for the importance analysis on Port Throughput Influence Factors. Design/methodology/approach: Neighborhood rough sets is applied to solve the problem of selection factors.
Weiping Cui, Lei Huang, Ying Wang
doaj   +4 more sources

Feature Selection Combining Information Theory View and Algebraic View in the Neighborhood Decision System

open access: yesEntropy, 2021
Feature selection is one of the core contents of rough set theory and application. Since the reduction ability and classification performance of many feature selection algorithms based on rough set theory and its extensions are not ideal, this paper ...
Jiucheng Xu   +3 more
doaj   +2 more sources

Topological Approaches for Rough Continuous Functions with Applications

open access: yesComplexity, 2021
In this paper, we purposed further study on rough functions and introduced some concepts based on it. We introduced and investigated the concepts of topological lower and upper approximations of near-open sets and studied their basic properties.
A. S. Salama   +3 more
doaj   +2 more sources

Two Different Views for Generalized Rough Sets with Applications

open access: yesMathematics, 2021
Rough set philosophy is a significant methodology in the knowledge discovery of databases. In the present paper, we suggest new sorts of rough set approximations using a multi-knowledge base; that is, a family of the finite number of general binary ...
Radwan Abu-Gdairi   +3 more
doaj   +2 more sources

Neighborhood Rough Fuzzy Penetration Control Method with Variable Precision Based on GMAW

open access: yesApplied Sciences, 2023
Considering the nonlinear, time-varying, and multivariate coupling nature of the welding process, achieving excellent control of the welding process can be challenging.
Xiaohong Xiang   +7 more
doaj   +2 more sources

Covering rough sets based on neighborhoods: An approach without using neighborhoods

open access: yesInternational Journal of Approximate Reasoning, 2011
Rough set theory, a mathematical tool to deal with inexact or uncertain knowledge in information systems, has originally described the indiscernibility of elements by equivalence relations. Covering rough sets are a natural extension of classical rough sets by relaxing the partitions arising from equivalence relations to coverings.
Ping Zhu, Zhu, Ping
core   +5 more sources

Home - About - Disclaimer - Privacy