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A fractal can be simply understood as a set or pattern in which there are far more small things than large ones, e.g., far more small geographic features than large ones on the earth surface, or far more large-scale maps than small-scale…

History and Overview · Mathematics 2015-05-20 Bin Jiang

The central place models are fundamentally important in theoretical geography and city planning theory. The texture and structure of central place networks have been demonstrated to be self-similar in both theoretical and empirical studies.…

Physics and Society · Physics 2018-12-20 Yanguang Chen

Even though many objects and phenomena of importance in geophysics have been shown to have fractal character, there are still many of them which show self-similar character and yet to be studied. The objective of the present work is to…

Geophysics · Physics 2015-01-27 Nakul N. Karle , Kiran M. Kolwankar

The communications and interrelations between different locations on the Earth's surface have far-reaching implications for both social and natural systems. Effective spatial analytics ideally require a spatial representation, where…

Physics and Society · Physics 2024-12-02 Hezhishi Jiang , Liyan Xu , Tianshu Li , Jintong Tang , Zekun Chen , Yuxuan Wang , Hongmou Zhang , Yu Liu

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…

Physics and Society · Physics 2015-05-20 Yukio Hayashi

In this paper, we delve into the fascinating realm of fractal calculus applied to fractal sets and fractal curves. Our study includes an exploration of the method analogues of the separable method and the integrating factor technique for…

General Mathematics · Mathematics 2023-10-26 Alireza Khalili Golmankhaneh , Donatella Bongiorno

For a long time, many methods are developed to make temporal signal analyses based on time series. However, for geographical systems, spatial signal analyses are as important as temporal signal analyses. Nonstationary spatial and temporal…

Physics and Society · Physics 2020-12-29 Yanguang Chen , Yuqing Long

A gray-level image texture descriptors based on fractal dimension estimation is proposed in this work. The proposed method estimates the fractal dimension using probability (Voss) method. The descriptors are computed applying a multiscale…

Data Analysis, Statistics and Probability · Physics 2012-05-15 J. B. Florindo , O. M. Bruno

Fractals have been at the heart of geophysical and geospatial studies in the recent past. We examine the emergent fractal character of water vapor distributions above the surface of the Earth as a function of both image resolution (number…

Pattern Formation and Solitons · Physics 2025-03-24 Anirudha Menon , Banasri Basu

Recent advances in deep learning have transformed many fields by introducing generic embedding spaces, capable of achieving great predictive performance with minimal labeling effort. The geology field has not yet met such success. In this…

Machine Learning · Computer Science 2021-08-23 Jonathan Kavitzky , Jonathan Zarecki , Idan Brusilovsky , Uriel Singer

The variability of temporal (or spatial) fluctuations of any variable is represented in conventional statistical theory by the relative dispersion equal to the standard deviation divided by the mean . The Relative Dispersion decreases with…

chao-dyn · Physics 2007-05-23 A. M. Selvam , Suvarna Fadnavis , S. U. Athale

Scale invariance of intrinsic patterns is an important concept in geology that can be observed in numerous geological objects and phenomena. These geological objects and phenomena are described as containing statistically selfsimilar…

Geophysics · Physics 2018-02-20 Adewale Amosu , Hamdi Mahmood , Paul Ofoche , Mohamed Imsalem

Motivated by a $2$-dimensional (unsupervised) image segmentation task whereby local regions of pixels are clustered via edge detection methods, a more general probabilistic mathematical framework is devised. Critical thresholds are…

Machine Learning · Computer Science 2021-09-07 Robert A. Murphy

Fractional calculus has been used to describe physical systems with complexity. Here, we show that a fractional calculus approach can restore or include complexity in any physical systems that can be described by partial differential…

Mesoscale and Nanoscale Physics · Physics 2024-08-06 Kyle Rockwell , Ezio Iacocca

In fractal geometry, the main objects of study have been geometric objects with a global dimension that need not be integer valued. More recently, locally fractal objects, ones in which the dimension is a local property rather than a global…

Complex Variables · Mathematics 2016-04-22 Raphael Reyna , Steven Damelin

Graphs are used in almost every scientific discipline to express relations among a set of objects. Algorithms that compare graphs, and output a closeness score, or a correspondence among their nodes, are thus extremely important. Despite…

Discrete Mathematics · Computer Science 2020-11-17 Sam Safavi , José Bento

The distance-decay function of the geographical gravity model is originally an inverse power law, which suggests a scaling process in spatial interaction. However, the distance exponent of the model cannot be explained with the ideas from…

Physics and Society · Physics 2018-12-19 Yanguang Chen

Using numerical simulations of a simple sea-coast mechanical erosion model, we investigate the effect of spatial long-range correlations in the lithology of coastal landscapes on the fractal behavior of the corresponding coastlines. In the…

Statistical Mechanics · Physics 2011-07-29 Pablo A. Morais , Erneson A. Oliveira , Nuno A. M. Araujo , H. J. Herrmann , J. S. Andrade

The relationship between geometric and dynamic properties of fractal-like aggregates is studied in the continuum mass and momentum-transfer regimes. The synthetic aggregates were generated by a cluster-cluster aggregation algorithm. The…

Soft Condensed Matter · Physics 2013-11-13 Anastasios D. Melas , Lorenzo Isella , Athanasios G. Konstandopoulos , Yannis Drossinos

In this paper, we study the topology associated to the fractal manifold model. It turns out that this topology is actually a family of topologies that gives to the fractal manifold a structure of variable topological space. Additionally, we…

General Mathematics · Mathematics 2012-11-16 Helene Porchon