Results 11 to 20 of about 5,429,485 (293)

An Attribute Reduction Method Using Neighborhood Entropy Measures in Neighborhood Rough Sets [PDF]

open access: yesEntropy, 2019
Attribute reduction as an important preprocessing step for data mining, and has become a hot research topic in rough set theory. Neighborhood rough set theory can overcome the shortcoming that classical rough set theory may lose some useful information ...
Shiguang Zhang, Jiucheng Xu, Jiucheng Xu
exaly   +7 more sources

Reduction of Neighborhood-Based Generalized Rough Sets [PDF]

open access: yesJournal of Applied Mathematics, 2011
Rough set theory is a powerful tool for dealing with uncertainty, granularity, and incompleteness of knowledge in information systems. This paper discusses five types of existing neighborhood-based generalized rough sets.
Zhaohao Wang, Lan Shu, Xiuyong Ding
doaj   +7 more sources

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   +5 more sources

Relative Reduction of Neighborhood-Covering Pessimistic Multigranulation Rough Set Based on Evidence Theory

open access: yesInformation, 2019
Relative reduction of multiple neighborhood-covering with multigranulation rough set has been one of the hot research topics in knowledge reduction theory.
Xiaoying You, Jinjin Li, Hongkun Wang
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

Characterization of neighborhood operators based on neighborhood relationships

open access: yesJournal of Intelligent Systems
Neighborhood relationships play a pivotal role in rough set theory, addressing the limitations of equivalence relations. This article focuses on defining upper and lower approximation operators using neighborhood relationships and exploring their ...
Caixin Wei   +3 more
doaj   +2 more sources

Feature Reduction for Power System Transient Stability Assessment Based on Neighborhood Rough Set and Discernibility Matrix

open access: yesEnergies, 2018
In machine learning-based transient stability assessment (TSA) problems, the characteristics of the selected features have a significant impact on the performance of classifiers.
Bingyang Li, Jianmei Xiao, Xihuai Wang
doaj   +2 more sources

Feature selection based on neighborhood rough sets and Gini index [PDF]

open access: yesPeerJ Computer Science, 2023
Neighborhood rough set is considered an essential approach for dealing with incomplete data and inexact knowledge representation, and it has been widely applied in feature selection.
Yuchao Zhang   +8 more
doaj   +2 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   +1 more source

Feature Subset Selection Based on Variable Precision Neighborhood Rough Sets

open access: yesInternational Journal of Computational Intelligence Systems, 2021
Rough sets have been widely used in the fields of machine learning and feature selection. However, the classical rough sets have the problems of difficultly dealing with real-value data and weakly fault tolerance.
Yingyue Chen, Yumin Chen
doaj   +1 more source

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