Results 11 to 20 of about 12,077,058 (321)

Semiring-Valued Fuzzy Sets and F-Transform [PDF]

Mathematics, 2021
The notion of a semiring-valued fuzzy set is introduced for special commutative partially pre-ordered semirings, including basic operations with these fuzzy structures. It is showed that many standard MV-algebra-valued fuzzy type structures with standard
Jiří Močkoř
doaj   +3 more sources

Preimage Problem Inspired by the F-Transform

Mathematics, 2022
In this article, we focus on discrete data processing. We propose to use the concept of closeness, which is less restrictive than a metric, to describe a certain relationship between objects.
Jiří Janeček, Irina Perfilieva
doaj   +3 more sources

A novel Covid-19 and pneumonia classification method based on F-transform. [PDF]

Chemometr Intell Lab Syst, 2021
Nowadays, Covid-19 is the most important disease that affects daily life globally. Therefore, many methods are offered to fight against Covid-19. In this paper, a novel fuzzy tree classification approach was introduced for Covid-19 detection. Since Covid-
Tuncer T, Ozyurt F, Dogan S, Subasi A.
europepmc   +2 more sources

Advanced F-Transform-Based Image Fusion

Advances in Fuzzy Systems, 2012
We propose to use the modern technique of the F-transform in order to show that it can be successfully applied to the image fusion. We remind two working algorithms (SA—the simple algorithm, and CA—the complete algorithm) which are based on the F ...
Marek Vajgl, Irina Perfilieva, Petra Hod'áková   +2 more
doaj   +3 more sources

On the Numerical Solution of Ordinary, Interval and Fuzzy Differential Equations by Use of F-Transform

Axioms, 2020
An interesting property of the inverse F-transform f ^ of a continuous function f on a given interval [ a , b ] says that the integrals of f ^ and f on [ a , b ] coincide.
Davide Radi, Laerte Sorini, Luciano Stefanini   +2 more
doaj   +2 more sources

Granular F-transform and its application [PDF]

arXiv.org, 2022
This contribution introduces the concept of granular F-transform and investigates its basic properties by using the theory of fuzzy numbers and horizontal membership functions. Further, we present a numerical method based on granular F-transform to solve
Abha Tripathi, S. P. Tiwari, J. Kavikumar   +2 more
semanticscholar   +3 more sources

Why Use a Fuzzy Partition in F-Transform? [PDF]

Axioms, 2019
In many application problems, F-transform algorithms are very efficient. In F-transform techniques, we replace the original signal or image with a finite number of weighted averages.
Vladik Kreinovich, Olga Kosheleva, Songsak Sriboonchitta   +2 more
doaj   +3 more sources

F-transform and discrete convolution [PDF]

Advances in Intelligent Systems Research, 2015
Discrete convolution is commonly used operation in the image processing field. The technique modifies an input image in various ways by scalable and easy computation.
Pavel Vlasánek, I. Perfilieva
semanticscholar   +2 more sources

Seasonal Time Series Forecasting by F¹-Fuzzy Transform [PDF]

Sensors, 2019
We present a new seasonal forecasting method based on F1-transform (fuzzy transform of order 1) applied on weather datasets. The objective of this research is to improve the performances of the fuzzy transform-based prediction method applied to seasonal ...
Ferdinando Di Martino, Salvatore Sessa
doaj   +3 more sources

Adaptive Membership Functions and F-Transform

IEEE Transactions on Fuzzy Systems
The definition of the fuzzy-transform (F-transform) has been limited mainly to 1-D signals and 2-D data due to the difficulty of defining membership functions, their centres, and support on a domain with arbitrary dimensionality and topology.
Simone Cammarasana, Giuseppe Patané
semanticscholar   +2 more sources