Results 11 to 20 of about 5,614 (289)

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

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

A Neighborhood Rough Classification with Dempster-Shafer Evidence Theory

open access: yesNantong Daxue xuebao. Ziran kexue ban, 2021
In order to further improve the classification mechanism and the performance of neighborhood classifier, a Dempster-Shafer(D-S) evidence-driven neighborhood rough classification method is proposed.
JU Hengrong; DING Weiping; YIN Tao; FAN Zhe; LIU Jiubing
doaj   +2 more sources

Optimization of S-N curve fitting based on neighborhood rough set reduction with improved firefly algorithm

open access: yesFracture and Structural Integrity, 2023
S-N curve fatigue samples of titanium alloy welded joints have such a comparatively significant scatter, that results in the issue that the fatigue life prediction accuracy is not optimal.
Yangjinyu Li, Li Zou, Zhengjie Zhu
doaj   +5 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

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

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

Automatic Rule Generation Based on Neighborhood Rough Set in Network Fault Management [PDF]

open access: yesJisuanji gongcheng, 2016
The current methods to define rules manually in the network fault management do not consider the influence of redundancy and inaccurate date on the effectiveness and performance of the rules.Aiming at the problem,an automatic rule generation method is ...
HONG Guodong,MIN Weidong
doaj   +2 more sources

An Entropy-Based Neighborhood Rough Set and PSO-SVRM Model for Fatigue Life Prediction of Titanium Alloy Welded Joints. [PDF]

open access: yesEntropy (Basel), 2019
In order to obtain comprehensive assessment of the factors influencing fatigue life and to further improve the accuracy of fatigue life prediction of welded joints, soft computing methods, including entropy-based neighborhood rough set reduction ...
Zou L, Sun Y, Yang X, Yang X.
europepmc   +2 more sources

Sensor data reduction with novel local neighborhood information granularity and rough set approach

open access: yesFrontiers in Physics, 2023
Data description and data reduction are important issues in sensors data acquisition and rough sets based models can be applied in sensors data acquisition. Data description by rough set theory relies on information granularity, approximation methods and
Xiaoxue Fan   +6 more
doaj   +1 more source

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