Results 31 to 40 of about 3,651 (294)

Adapting fuzzy rough sets for classification with missing values [PDF]

open access: yes, 2021
We propose an adaptation of fuzzy rough sets to model concepts in datasets with missing values. Upper and lower approximations are replaced by interval-valued fuzzy sets that express the uncertainty caused by incomplete information.
Peralta, Daniel   +2 more
core   +1 more source

A New Single-Valued Neutrosophic Rough Sets and Related Topology

open access: yesJournal of Mathematics, 2021
(Fuzzy) rough sets are closely related to (fuzzy) topologies. Neutrosophic rough sets and neutrosophic topologies are extensions of (fuzzy) rough sets and (fuzzy) topologies, respectively. In this paper, a new type of neutrosophic rough sets is presented,
Qiu Jin   +3 more
doaj   +1 more source

Advances in fuzzy sets and rough sets

open access: yesInternational Journal of Approximate Reasoning, 2006
n ...
Masulli, F., Petrosino, A.
openaire   +2 more sources

A Hesitant Soft Fuzzy Rough Set and its Applications

open access: yesIEEE Access, 2019
The difficulty of establishing a common membership degree is not because there is a margin of error or some possibility distribution values, but because there is a set of possible values.
Ting Xie, Zengtai Gong
doaj   +1 more source

On the measurement of TL - fuzzy rough sets [PDF]

open access: yes, 2006
In fuzzy rough sets a fuzzy T-similarity relation is employed to describe the degree of similarity between two objects and to construct lower and upper approximations for arbitrary fuzzy sets.
Tsang, ECC   +3 more
core   +1 more source

Rule induction based on fuzzy rough sets [PDF]

open access: yes, 2007
In this paper, we propose one method of rule induction based on fuzzy rough set. First, the consistence degree is proposed as the basic concept to induce rules based on fuzzy rough sets.
Tsang, ECC   +5 more
core   +1 more source

Confidence Level Aggregation Operators Based on Intuitionistic Fuzzy Rough Sets With Application in Medical Diagnosis

open access: yesIEEE Access, 2023
In recent days, due to the complexities of different diseases of similar types, it becomes very difficult to diagnose an accurate type of disease, and so medical diagnosis becomes a difficult task for the experts working in health departments.
Tahir Mahmood   +3 more
doaj   +1 more source

Boundary-wise loss for medical image segmentation based on fuzzy rough sets [PDF]

open access: yes
The loss function plays an important role in deep learning models as it determines the model convergence behavior and performance. In semantic segmentation, many methods utilize pixel-wise (e.g. cross-entropy) and region-wise (e.g.
Chen, Xin   +3 more
core   +2 more sources

Certain Types of Covering-Based Multigranulation (ℐ,T)-Fuzzy Rough Sets with Application to Decision-Making [PDF]

open access: yes, 2020
As a generalization of Zhan’s method (i.e., to increase the lower approximation and decrease the upper approximation), the present paper aims to define the family of complementary fuzzy β-neighborhoods and thus three kinds of covering-based ...
Mohammed Atef   +3 more
core   +1 more source

Granular Structure of Type-2 Fuzzy Rough Sets over Two Universes [PDF]

open access: yes, 2017
Granular structure plays a very important role in the model construction, theoretical analysis and algorithm design of a granular computing method. The granular structures of classical rough sets and fuzzy rough sets have been proven to be clear.
Yan-Hui Zhai   +3 more
core   +1 more source

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