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相关论文: Complex networks of earthquakes and aftershocks

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We explore the robustness of complex networks against physical damage. We focus on spatially embedded network models and datasets where links are physical objects or physically transfer some quantity, which can be disrupted at any point…

统计力学 · 物理学 2024-12-13 Luka Blagojević , Ivan Bonamassa , Márton Pósfai

We construct a connected network of 3.9 million nodes from mobile phone call records, which can be regarded as a proxy for the underlying human communication network at the societal level. We assign two weights on each edge to reflect the…

Numerical and experimental turbulence simulations are nowadays reaching the size of the so-called big data, thus requiring refined investigative tools for appropriate statistical analyses and data mining. We present a new approach based on…

流体动力学 · 物理学 2017-01-05 Stefania Scarsoglio , Giovanni Iacobello , Luca Ridolfi

The elementary theory of relaxation of the source cooling down after the main shock of an earthquake is presented axiomatically. The names of the objects under study are given and the relationships between them are determined. A new basic…

地球物理 · 物理学 2024-10-18 A. V. Guglielmi

Complex networks are the subject of fundamental interest from the scientific community at large. Several metrics have been introduced to characterize the structure of these networks, such as the degree distribution, degree correlation, path…

物理与社会 · 物理学 2019-01-14 Francesco Sorrentino , Abu Bakar Siddique , Louis M. Pecora

Earthquake phenomenology exhibits a number of power law distributions including the Gutenberg-Richter frequency-size statistics and the Omori law for aftershock decay rates. In search for a basic model that renders correct predictions on…

无序系统与神经网络 · 物理学 2009-11-11 Amit P. Mehta , Karin A. Dahmen , Yehuda Ben-Zion

Analysis of the Sumatra-Andaman earthquake on 26.12.2004 (M = 9) has allowed us to identify two non- trivial properties of the dynamics of aftershocks. First, the strongest aftershock (M = 7.2) was likely triggered by the round-the-world…

地球物理 · 物理学 2013-07-17 A. V. Guglielmi , O. D. Zotov , A. D. Zavyalov

The relaxation dynamics of aftershocks after large volatility shocks are investigated based on two high-frequency data sets of the Shanghai Stock Exchange Composite (SSEC) index. Compared with previous relevant work, we have defined main…

统计金融 · 定量金融 2008-12-02 Guo-Hua Mu , Wei-Xing Zhou

I study a recently proposed statistical model of earthquake dynamics that incorporates aging as a fundamental ingredient. The model is known to generate earthquake sequences that quantitatively reproduce the spatial and temporal clustering…

统计力学 · 物理学 2015-05-19 E. A. Jagla

The aftershock sequence of the devastating Japan earthquake of March 2011 is analyzed for the presence of periodicities at the Earth tide periods. We use spectral analysis as well as a time-domain method KORRECT developed earlier to detect…

地球物理 · 物理学 2011-06-16 Arjun Datta , Kamal

We study statistical properties of the number of large earthquakes over the past century. We analyze the cumulative distribution of the number of earthquakes with magnitude larger than threshold M in time interval T, and quantify the…

地球物理 · 物理学 2012-03-30 Eric G. Daub , Eli Ben-Naim , Robert A. Guyer , Paul A. Johnson

Reliable earthquake forecasting methods have long been sought after, and so the rise of modern data science techniques raises a new question: does deep learning have the potential to learn this pattern? In this study, we leverage the large…

地球物理 · 物理学 2023-07-06 Jonas Koehler , Wei Li , Johannes Faber , Georg Ruempker , Nishtha Srivastava

The earthquake source after the main shock can theoretically be represented as a black box without an entrance. At the output, there is a signal in the form of aftershocks, the frequency of which decreases on average with time according to…

地球物理 · 物理学 2023-03-07 A. Guglielmi , O. Zotov

The decay pattern of aftershocks in the so-called 'coherent-noise' models [M. E. J. Newman and K. Sneppen, Phys. Rev. E54, 6226 (1996)] is studied in detail. Analytical and numerical results show that the probability to find a large event…

数据分析、统计与概率 · 物理学 2009-10-30 C. Wilke , S. Altmeyer , T. Martinetz

Network science provides a universal framework for modeling complex systems, contrasting the reductionist approach generally adopted in physics. In a prototypical study, we utilize network models created from spectroscopic data of atoms to…

In this work the distribution of inter-occurrence times between earthquakes in aftershock sequences is analyzed and a model based on a non-homogeneous Poisson (NHP) process is proposed to quantify the observed scaling. In this model the…

地球物理 · 物理学 2007-05-23 Robert Shcherbakov , Gleb Yakovlev , Donald L. Turcotte , John B. Rundle

Large earthquakes occurring worldwide have long been recognised to be non Poisson distributed, so involving some large scale correlation mechanism, which could be internal or external to the Earth. Till now, no statistically significant…

地球物理 · 物理学 2020-04-07 Vito Marchitelli , Paolo Harabaglia , Claudia Troise , Giuseppe De Natale

Plenty of algorithms for link prediction have been proposed and were applied to various real networks. Among these works, the weights of links are rarely taken into account. In this paper, we use local similarity indices to estimate the…

信息检索 · 计算机科学 2009-08-14 Linyuan Lu , Tao Zhou

Spatiotemporal clustering of earthquake events is a generally-established fact, and is important for designing models and assessment techniques in seismicity. Here, we investigate how this behavior can manifest in the statistical…

地球物理 · 物理学 2013-07-08 Rene C. Batac , Holger Kantz

Network science have constantly been in the focus of research for the last decade, with considerable advances in the controllability of their structural. However, much less effort has been devoted to study that how to improve the…

系统与控制 · 计算机科学 2016-10-12 Jiuqiang Xu , Jinfa Wang , Hai Zhao , Siyuan Jia