Results 1 to 10 of about 957,187 (164)

Box dimension of the border of Kingdom of Saudi Arabia [PDF]

open access: yesHeliyon, 2023
Fractal dimension unlike topological dimension is (usually) a non-integer number which measures complexity, roughness, or irregularity of an object with respect to the space in which the set lies.
Mohammad Sajid   +5 more
doaj   +2 more sources

Improving the signal subtle feature extraction performance based on dual improved fractal box dimension eigenvectors [PDF]

open access: yesRoyal Society Open Science, 2018
Because of the limitations of the traditional fractal box-counting dimension algorithm in subtle feature extraction of radiation source signals, a dual improved generalized fractal box-counting dimension eigenvector algorithm is proposed.
Xiang Chen   +3 more
doaj   +2 more sources

Bypassing dynamical systems: a simple way to get the box-counting dimension of the graph of the Weierstrass function [PDF]

open access: diamondPracì Mìžnarodnogo Geometričnogo Centru, 2018
In the following, bypassing dynamical systems tools, we propose a simple means of computing the box dimension of the graph of the classical Weierstrass function defined, for any real number~$x$, by \[{\mathcal W}(x)= \sum_{n=0}^{+\infty} \lambda^n\,\cos \
Claire David
doaj   +2 more sources

Optimal box-covering algorithm for fractal dimension of complex networks

open access: hybrid, 2012
The self-similarity of complex networks is typically investigated through computational algorithms the primary task of which is to cover the structure with a minimal number of boxes.
Christian M. Schneider   +8 more
core   +4 more sources

A Box-Counting Method with Adaptable Box Height for Measuring the Fractal Feature of Images [PDF]

open access: yesRadioengineering, 2013
Most of the existing box-counting methods for measuring fractal features are only applicable to square images or images with each dimension equal to the power of 2 and require that the box at the top of the box stack of each image block is of the same ...
Min Long, Fei Peng
doaj   +2 more sources

An Improved 3D Box-Counting Dimension Computing Technology for Estimating the Complexity of 3D Models

open access: yesIEEE Access, 2022
The box-counting dimension, which can effectively reflect the complexity and self-similarity of models, is an important method for calculating the fractal dimension of models.
Chong Wang, Weiqiang An
doaj   +1 more source

On the Lower and Upper Box Dimensions of the Sum of Two Fractal Functions

open access: yesFractal and Fractional, 2022
Let f and g be two continuous functions. In the present paper, we put forward a method to calculate the lower and upper Box dimensions of the graph of f+g by classifying all the subsequences tending to zero into different sets.
Binyan Yu, Yongshun Liang
doaj   +1 more source

Partially Explore the Differences and Similarities between Riemann-Liouville Integral and Mellin Transform

open access: yesFractal and Fractional, 2022
At present many researchers devote themselves to studying the relationship between continuous fractal functions and their fractional integral. But little attention is paid to the relationship between Mellin transform and fractional integral.
Zhibiao Zhou, Wei Xiao, Yongshun Liang
doaj   +1 more source

Modulation Recognition of Low-SNR UAV Radar Signals Based on Bispectral Slices and GA-BP Neural Network

open access: yesDrones, 2023
In this paper, we address the challenge of low recognition rates in existing methods for radar signals from unmanned aerial vehicles (UAV) with low signal-to-noise ratios (SNRs).
Xuemin Liu   +5 more
doaj   +1 more source

The Second Generalization of the Hausdorff Dimension Theorem for Random Fractals

open access: yesMathematics, 2022
In this paper, we present a second partial solution for the problem of cardinality calculation of the set of fractals for its subcategory of the random virtual ones.
Mohsen Soltanifar
doaj   +1 more source

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