Results 21 to 30 of about 12,077,058 (321)

F-transform 3D Point Cloud Filtering Algorithm [PDF]

open access: yes2018 IEEE Second International Conference on Data Stream Mining & Processing (DSMP), 2018
The paper proposes a new 3D point cloud filtering approach using F-transform. We achieve this by usage of uniform fuzzy partitioning and applying direct and inverse discrete F-transform on a point cloud data.
A. Yerokhin   +4 more
semanticscholar   +3 more sources

Dimensionality Reduction and Its F-Transform Representation [PDF]

open access: yesProceedings of the 2019 Conference of the International Fuzzy Systems Association and the European Society for Fuzzy Logic and Technology (EUSFLAT 2019), 2019
The aim of this contribution is to connect two techniques: the F-transform on a space with a fuzzy partition and dimensionality reduction. We show how a space with a fuzzy partition can be characterized in terms of the graph Laplacian.
J. Janeček, I. Perfilieva
semanticscholar   +2 more sources

Why Triangular Membership Functions Are Successfully Used in F-Transform Applications: A Global Explanation to Supplement the Existing Local Ones

open access: yesAxioms, 2019
The main ideas of F-transform came from representing expert rules. It would be therefore reasonable to expect that the more accurately the membership functions describe human reasoning, the more successful will be the corresponding F-transform formulas ...
Olga Kosheleva   +2 more
doaj   +2 more sources

Non-additive interval-valued F-transform [PDF]

open access: yesFuzzy Sets and Systems, 2015
This article proposes a new interval-valued fuzzy transform. Its construction is based on a possibilistic interpretation of the partition on which the fuzzy transform is built. The main advantage of this approach is that it provides specific interval valued functions whose interpretation is straightforward.
O. Strauss
semanticscholar   +4 more sources

F-Transforms for the Definition of Contextual Fuzzy Partitions [PDF]

open access: yes, 2019
Fuzzy partitions can be defined in many different ways, but usually, it is done taking into account the whole universe. In this paper, we present a method to define fuzzy partitions according to those elements in the universe holding certain fuzzy attribute. Specifically, we show how to define those fuzzy partitions by means of F-transforms.
Madrid-Labrador, Nicolás Miguel   +1 more
openaire   +4 more sources

Novel Image Fusion Based on F-transform [PDF]

open access: yesAdvances in Fuzzy Systems, 2014
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-transform and discuss, how they can be improved.
I. Perfilieva, M. Vajgl
semanticscholar   +3 more sources

A Novel Classification Algorithm Based on Multidimensional F1 Fuzzy Transform and PCA Feature Extraction

open access: yesAlgorithms, 2023
The bi-dimensional F1-Transform was applied in image analysis to improve the performances of the F-transform method; however, due to its high computational complexity, the multidimensional F1-transform cannot be used in data analysis problems, especially
Barbara Cardone, Ferdinando Di Martino
doaj   +1 more source

On the Similarity and Dependence of Time Series

open access: yesMathematics, 2021
In this paper, we undertake the problem of evaluating interrelation among time series. Interrelation is measured using a similarity index. In this paper, we suggest a new one based on the known fuzzy transform (F-transform), which has been proven to ...
Vilém Novák, Soheyla Mirshahi
doaj   +1 more source

On the order of magnitude of Walsh-Fourier transform [PDF]

open access: yesMathematica Bohemica, 2020
For a Lebesgue integrable complex-valued function $f$ defined on $\mathbb R^+:=[0,\infty)$ let $\hat f$ be its Walsh-Fourier transform. The Riemann-Lebesgue lemma says that $\hat f(y)\to0$ as $y\to\infty$.
Bhikha Lila Ghodadra, Vanda Fülöp
doaj   +1 more source

Laeng-Morpurgo-type uncertainty inequalities for the Weinstein transform

open access: yesCubo, 2023
In this work, by combining Carlson-type and Nash-type inequalities for the Weinstein transform $\mathscr{F}_W$ on $\mathbb{K}=\mathbb{R}^{d-1}\times[0,\infty)$, we show Laeng-Morpurgo-type uncertainty inequalities.
Fethi Soltani, Slim Ben Rejeb
doaj   +1 more source

Home - About - Disclaimer - Privacy