Results 21 to 30 of about 1,694,129 (281)

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

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

Granule Vectors and Granular Convolutional Classifiers

open access: yesIEEE Access, 2020
Convolutional operations can extract effective features and have been widely used in the field of deep learning. For the deficiency of convolution mainly dealing with numerical data, we propose a novel convolutional operator on granules with a set form ...
Yumin Chen   +3 more
doaj   +1 more source

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   +1 more source

Novel Graph Neighborhoods Emerging from Ideals

open access: yesMathematics, 2023
Rough set theory is a mathematical approach that deals with the problems of uncertainty and ambiguity in knowledge. Neighborhood systems are the most effective instruments for researching rough set theory in general.
Ayşegül Çaksu Güler   +4 more
doaj   +1 more source

Fundamental properties of fuzzy rough sets based on triangular norms and fuzzy implications: the properties characterized by fuzzy neighborhood and fuzzy topology

open access: yesComplex & Intelligent Systems, 2023
Fuzzy rough set models are useful tools for dealing with fuzzy and real-valued data. They have been used in many real-world applications. In this paper, we investigate the fuzzy rough set model based on triangular norms and fuzzy implications.
Zhaohao Wang
doaj   +1 more source

Autonomous clustering using rough set theory [PDF]

open access: yes, 2008
This paper proposes a clustering technique that minimises the need for subjective human intervention and is based on elements of rough set theory. The proposed algorithm is unified in its approach to clustering and makes use of both local and global ...
Chandra Kambhampati   +3 more
core   +1 more source

Incomplete neighbourhood multi-granulation decision-theoretic rough set in the hybrid-valued decision system

open access: yesThe Journal of Engineering, 2019
It is an important subject to mine valuable knowledge from complex and massive data in the era of big data. Rough set theory is a new mathematical tool for dealing with uncertain and inaccurate data, decision-theoretic rough set model (DTRS), as an ...
Jiajun Chen   +3 more
doaj   +1 more source

Six-Set Approximation Theorem of neighborhood related rough sets

open access: yesInternational Journal of Approximate Reasoning, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liwen Ma, Hui Lu
openaire   +3 more sources

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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