中文
相关论文

相关论文: Information fractal dimension of mass function

200 篇论文

We have set ourselves the task of obtaining the probability distribution function of the mass density of a self-gravitating isothermal compressible turbulent fluid from its physics. We have done this in the context of a new notion: the…

星系天体物理 · 物理学 2018-01-10 Sava Donkov , Ivan Stefanov

Due to the fractal nature of retinal blood vessels, the retinal fractal dimension is a natural parameter for researchers to explore and has garnered interest as a potential diagnostic tool. This review aims to summarize the current…

定量方法 · 定量生物学 2021-01-25 Sam Yu , Vasudevan Lakshminarayanan

Parametric mathematical models such as parameterizations of partial differential equations with random coefficients have received a lot of attention within the field of uncertainty quantification. The model uncertainties are often…

数值分析 · 数学 2023-09-20 Philipp A. Guth , Vesa Kaarnioja

The statistics of critical wave functions at the Anderson transition in three and four dimensions are studied numerically. The distribution of the inverse participation ratios (IPR) $P_q$ is shown to acquire a scale-invariant form in the…

无序系统与神经网络 · 物理学 2009-11-07 A. Mildenberger , F. Evers , A. D. Mirlin

A method is proposed for generating compact fractal disordered media, by generalizing the random midpoint displacement algorithm. The obtained structures are invasive stochastic fractals, with the Hurst exponent varying as a continuous…

统计力学 · 物理学 2011-01-04 Christian Turk , Anna Carbone , Bernardino M. Chiaia

We propose a new method to analyze fluctuations in the strength function phenomena in highly excited nuclei. Extending the method of multifractal analysis to the cases where the strength fluctuations do not obey power scaling laws, we…

核理论 · 物理学 2009-10-31 Hirokazu Aiba , Masayuki Matsuo

This report focuses on the dependencies for the center and radius of the confidence interval that arise when estimating the mass fractal dimensions of isotropic sampling clusters in the site percolation model.

统计力学 · 物理学 2011-10-07 P. V. Moskalev , K. V. Grebennikov , V. V. Shitov

Recent literature in the last Maximum Entropy workshop introduced an analogy between cumulative probability distributions and normalized utility functions. Based on this analogy, a utility density function can de defined as the derivative…

人工智能 · 计算机科学 2009-11-10 Ali E. Abbas

The fractal dimensions of polymer chains and high-temperature graphs in the Ising model both in three dimension are determined using the conformal bootstrap applied for the continuation of the $O(N)$ models from $N=1$ (Ising model) to $N=0$…

统计力学 · 物理学 2017-02-01 Hirohiko Shimada , Shinobu Hikami

Fractal dimension is widely adopted in spatial databases and data mining, among others as a measure of dataset skewness. State-of-the-art algorithms for estimating the fractal dimension exhibit linear runtime complexity whether based on…

数据库 · 计算机科学 2009-05-27 Christos Attikos , Michael Doumpos

Texture plays an important role in computer vision. It is one of the most important visual attributes used in image analysis, once it provides information about pixel organization at different regions of the image. This paper presents a…

计算机视觉与模式识别 · 计算机科学 2014-12-30 André R. Backes , Odemir M. Bruno

A \emph{fractal} is an object exhibiting complexity at arbitrarily small scales. In order to study and characterise fractals, one is often interested in quantifying how they fill up space on small scales. This gives rise to various notions…

经典分析与常微分方程 · 数学 2026-03-12 Jonathan M. Fraser

This chapter explores the notion of "dimension" of a set. Various power laws by which an Euclidean space can be characterized are used to define dimensions, which then explore different aspects of the set. Also discussed are the…

统计力学 · 物理学 2016-11-10 Somendra M. Bhattacharjee

There are many research papers dealing with fractal dimension of real-valued fractal functions in the recent literature. The main focus of the present paper is to study fractal dimension of complex-valued functions. This paper also…

动力系统 · 数学 2022-04-08 Manuj Verma , Amit Priyadarshi , Saurabh Verma

Two semimetrics on probability distributions are proposed, given as the sum of differences of expectations of analytic functions evaluated at spatial or frequency locations (i.e, features). The features are chosen so as to maximize the…

机器学习 · 统计学 2016-10-31 Wittawat Jitkrittum , Zoltan Szabo , Kacper Chwialkowski , Arthur Gretton

A theoretical framework is developed to describe the transformation that distributes probability density functions uniformly over space. In one dimension, the cumulative distribution can be used, but does not generalize to higher…

神经与进化计算 · 计算机科学 2016-09-08 Eric Kee

This paper investigates fractal dimension of linear combination of fractal continuous functions with the same or different fractal dimensions. It has been proved that: (1) $BV_{I}$ all fractal continuous functions with bounded variation is…

经典分析与常微分方程 · 数学 2021-10-22 Wei Xiao

Fractal structures emerge from statistical and hierarchical processes in urban development or network evolution. In a class of efficient and robust geographical networks, we derive the size distribution of layered areas, and estimate the…

物理与社会 · 物理学 2015-05-20 Yukio Hayashi

For each $k\ge 3$, we determine the dimensional threshold for planar fractal percolation to contain $k$ collinear points. In the critical case of dimension $1$, the largest linear slice of fractal percolation is a Cantor set of zero…

概率论 · 数学 2025-01-28 Pablo Shmerkin , Ville Suomala

After a brief discussion of the concepts of fractional exchange and fractional exclusion statistics, we report partly analytical and partly numerical results on thermodynamic properties of assemblies of particles obeying fractional…

强关联电子 · 物理学 2011-11-10 F. M. D. Pellegrino , G. G. N. Angilella , N. H. March , R. Pucci