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相关论文: Identifying the Community Structure of the Interna…

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The Internet is composed of routing devices connected between them and organized into independent administrative entities: the Autonomous Systems. The existence of different types of Autonomous Systems (like large connectivity providers,…

网络与互联网体系结构 · 计算机科学 2016-08-08 Mariano G. Beiró , Sebastián P. Grynberg , J. Ignacio Alvarez-Hamelin

This study examines patterns of regionalisation in the International Trade Network (ITN). The study makes use of Gould Fernandez brokerage to examine the roles countries play in the ITN linking different regional partitions. An examination…

综合经济学 · 经济学 2021-12-21 Matthew Smith , Yasaman Sarabi

We study the international interbank market through a geometrical and a topological analysis of empirical data. The geometrical analysis of the time series of cross-country liabilities shows that the systematic information of the interbank…

计算金融 · 定量金融 2012-05-28 Alessandro Spelta , Tanya Araújo

In this note we study the bilateral merchandise trade flows between 186 countries over the 1948-2005 period using data from the International Monetary Fund. We use Pajek to identify network structure and behavior across thresholds and over…

综合金融 · 定量金融 2009-11-13 Irena Tzekina , Karan Danthi , Daniel N. Rockmore

In the paper we analyse dependence structures among international trade flows of major conventional weapons from 1952 to 2016. We employ a Network Disturbance Model commonly used in inferential network analysis and spatial econometrics. The…

应用统计 · 统计学 2018-03-12 Michael Lebacher , Göran Kauermann

When we detect communities in temporal networks it is important to ask questions about how they change in time. Normalised Mutual Information (NMI) has been used to measure the similarity of communities when the nodes on a network do not…

社会与信息网络 · 计算机科学 2025-11-19 Peijie Zhong , Cheick Ba , Raúl Mondragón , Richard Clegg

This paper explores the relationships between migration and trade using a complex-network approach. We show that: (i) both weighted and binary versions of the networks of international migration and trade are strongly correlated; (ii) such…

物理与社会 · 物理学 2013-09-24 Giorgio Fagiolo , Marina Mastrorillo

Economy, and consequently trade, is a fundamental part of human social organization which, until now, has not been studied within the network modelling framework. Networks are mathematical tools used in the modelling of a wide variety of…

无序系统与神经网络 · 物理学 2009-11-10 M. Angeles Serrano , Marian Boguna

Nestedness has traditionally been used to detect assembly patterns in meta-communities and networks of interacting species. Attempts have also been made to uncover nested structures in international trade, typically represented as bipartite…

Recent events such as the global financial crisis have renewed the interest in the topic of economic networks. One of the main channels of shock propagation among countries is the International Trade Network (ITN). Two important models for…

综合金融 · 定量金融 2015-02-23 Assaf Almog , Tiziano Squartini , Diego Garlaschelli

One major hurdle in the road toward a low carbon economy is the present entanglement of developed economies with oil. This tight relationship is mirrored in the correlation between most of economic indicators with oil price. This paper…

物理与社会 · 物理学 2015-09-29 Franco Ruzzenenti , Francesco Picciolo , Andreas Papandreou

Mutualistic networks have attracted increasing attention in the ecological literature in the last decades as they play a key role in the maintenance of biodiversity. Here, we develop an analytical framework to study the structural stability…

物理与社会 · 物理学 2021-02-05 Xiangrong Wang , Thomas Peron , Johan L. A. Dubbeldam , Sonia Kèfi , Yamir Moreno

Network science is an interdisciplinary endeavor, with methods and applications drawn from across the natural, social, and information sciences. A prominent problem in network science is the algorithmic detection of tightly-connected groups…

数据分析、统计与概率 · 物理学 2010-07-14 Peter J. Mucha , Thomas Richardson , Kevin Macon , Mason A. Porter , Jukka-Pekka Onnela

The structure and evolution of Terrestrial Transportation Infrastructures (TTIs) are shaped by both socio-political and geographical factors, hence encoding crucial information about how resources and power are distributed through a…

物理与社会 · 物理学 2021-09-29 Luce Prignano , Lluc Font-Pomarol , Ignacio Morer , Sergi Lozano

Triadic motifs are the smallest building blocks of higher-order interactions in complex networks and can be detected as over-occurrences with respect to null models with only pair-wise interactions. Recently, the motif structure of…

物理与社会 · 物理学 2024-02-14 Marzio Di Vece , Frank P. Pijpers , Diego Garlaschelli

This study investigates the inherently random structures of dry bulk shipping networks, often likened to a taxi service, and identifies the underlying trade dynamics that contribute to this randomness within individual cargo sub-networks.…

数理金融 · 定量金融 2025-02-04 Yan Li , Carol Alexander , Michael Coulon , Istvan Kiss

Production networks are integral to economic dynamics, yet dis-aggregated network data on inter-firm trade is rarely collected and often proprietary. Here we situate company-level production networks among networks from other domains…

Community currency networks are made up of individuals and or companies that share some physical or social characteristics and engage in economic transactions using a virtual currency. This paper investigates the structural and dynamic…

计算工程、金融与科学 · 计算机科学 2025-07-04 Camilla Ancona , Dora Ricci , Carmela Bernardo , Francesco Lo Iudice , Anton Proskurnikov , Francesco Vasca

We study the structure of inter-industry relationships using networks of money flows between industries in 20 national economies. We find these networks vary around a typical structure characterized by a Weibull link weight distribution,…

物理与社会 · 物理学 2014-07-25 James McNerney , Brian D. Fath , Gerald Silverberg

The global food system has metamorphosed from a loose aggregation of bilateral exchanges into a highly intricate, interdependent Global Food Trade Network (FTN). This comprehensive review synthesizes the extant literature to examine the FTN…

理论经济学 · 经济学 2026-01-21 Zebiao Li , Xueying Wu , Chengyi Tu