Results 21 to 30 of about 12,077,058 (321)
F-transform 3D Point Cloud Filtering Algorithm [PDF]
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]
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
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]
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]
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]
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
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
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]
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
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

