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Connectivity patterns of relevance in neuroscience and systems biology can be encoded in hierarchical modular networks (HMNs). Moreover, recent studies highlight the role of hierarchical modular organization in shaping brain activity…

无序系统与神经网络 · 物理学 2017-11-22 Ali Safari , Paolo Moretti , Miguel A. Muñoz

Dimension is a fundamental property of objects and the space in which they are embedded. Yet ideal notions of dimension, as in Euclidean spaces, do not always translate to physical spaces, which can be constrained by boundaries and…

物理与社会 · 物理学 2022-07-06 Robert L. Peach , Alexis Arnaudon , Mauricio Barahona

Dynamical networks are powerful tools for modeling a broad range of complex systems, including financial markets, brains, and ecosystems. They encode how the basic elements (nodes) of these systems interact altogether (via links) and evolve…

物理与社会 · 物理学 2019-03-13 Edward Laurence , Nicolas Doyon , Louis J Dubé , Patrick Desrosiers

This paper describes how realistic neuromorphic networks can have their connectivity fully characterized in analytical fashion. By assuming that all neurons have the same shape and are regularly distributed along the two-dimensional…

无序系统与神经网络 · 物理学 2007-05-23 Luciano da Fontoura Costa , Marconi Soares Barbosa

As network data has become ubiquitous in the sciences, there has been growing interest in network models whose structure is driven by latent node-level variables in a (typically low-dimensional) latent geometric space. These "latent…

统计理论 · 数学 2026-01-12 Roddy Taing , Keith Levin

Reducing dimension redundancy to find simplifying patterns in high-dimensional datasets and complex networks has become a major endeavor in many scientific fields. However, detecting the dimensionality of their latent space is challenging…

物理与社会 · 物理学 2022-11-09 Pedro Almagro , Marian Boguna , M. Angeles Serrano

What is the dimension of a network? Here, we view it as the smallest dimension of Euclidean space into which nodes can be embedded so that pairwise distances accurately reflect the connectivity structure. We show that a recently proposed…

社会与信息网络 · 计算机科学 2023-06-27 Peter Grindrod , Desmond John Higham , Henry-Louis de Kergorlay

We derive a renormalization method to calculate the spectral dimension $\bar{d}$ of deterministic self-similar networks with arbitrary base units and branching constants. The generality of the method allows the affect of a multitude of…

统计力学 · 物理学 2015-05-13 Christophe P. Haynes , Anthony P. Roberts

Much of the qualitative nature of physical systems can be predicted from the way it scales with system size. Contrary to the continuum expectation, we observe a profound deviation from logarithmic scaling in the impedance of a…

We consider discrete stochastic processes, modeled by classical master equations, on networks. The temporal growth of the lack of information about the system is captured by its non-equilibrium entropy, defined via the transition…

统计力学 · 物理学 2017-04-26 Oliver Muelken , Sarah Heinzelmann , Maxim Dolgushev

From social interactions to the human brain, higher-order networks are key to describe the underlying network geometry and topology of many complex systems. While it is well known that network structure strongly affects its function, the…

Dimensionality is one of the most important properties of complex physical systems. However, only recently this concept has been considered in the context of complex networks. In this paper we further develop the previously introduced…

物理与社会 · 物理学 2013-08-19 Filipi Nascimento Silva , Luciano da Fontoura Costa

Starting from the working hypothesis that both physics and the corresponding mathematics have to be described by means of discrete concepts on the Planck-scale, one of the many problems one has to face in this enterprise is to find the…

高能物理 - 理论 · 物理学 2010-05-12 Thomas Nowotny , Manfred Requardt

Neurons in the brain communicate with spikes, which are discrete events in time and value. Functional network models often employ rate units that are continuously coupled by analog signals. Is there a qualitative difference implied by these…

无序系统与神经网络 · 物理学 2021-07-20 Christian Keup , Tobias Kühn , David Dahmen , Moritz Helias

Dynamic networks, also called network streams, are an important data representation that applies to many real-world domains. Many sets of network data such as e-mail networks, social networks, or internet traffic networks are best…

社会与信息网络 · 计算机科学 2014-11-17 Timothy La Fond , Jennifer Neville , Brian Gallagher

Starting from the morphological-functional assumption of the fractal brain, a mathematical model is given by activating brain non-differentiable dynamics through the determinism-nondeterminism inference of the responsible mechanisms. The…

神经元与认知 · 定量生物学 2015-11-18 Maricel Agop , Alina Gavrilut , Gabriel Crumpei , Mitica Craus , Vlad Birlescu

We analyse a collection of empirical networks in a wide spectrum of disciplines and show that strong non-normality is ubiquitous in network science. Dynamical processes evolving on non-normal networks exhibit a peculiar behaviour, as…

适应与自组织系统 · 物理学 2018-11-09 Malbor Asllani , Renaud Lambiotte , Timoteo Carletti

Two-dimensional networks of ordered quantum dots beyond the percolation threshold are studied, as typical example of conducting nanostructures with quenched random disorder. Theory predicts anomalous diffusion with stretched-exponential…

统计力学 · 物理学 2016-01-06 Fabrizio Cleri

Using the previously gained insight about the particle/field relation in conformal quantum field theories which required interactions to be related to the existence of particle-like states associated with fields of anomalous scaling…

高能物理 - 理论 · 物理学 2009-10-31 Bert Schroer

Functional networks provide a topological description of activity patterns in the brain, as they stem from the propagation of neural activity on the underlying anatomical or structural network of synaptic connections. This latter is well…

无序系统与神经网络 · 物理学 2021-02-11 Ali Safari , Paolo Moretti , Ibai Diez , Jesus M. Cortes , Miguel Ángel Muñoz
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