Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/114061
Title: Competition between global and local online social networks
Author: Kleineberg, Kaj Kolja
Boguñá, Marián
Keywords: Xarxes complexes (Matemàtica)
Sistemes no lineals
Transformacions de fase (Física estadística)
Complex networks (Physics)
Nonlinear systems
Phase transformations (Statistical physics)
Issue Date: 27-Apr-2016
Publisher: Nature Publishing Group
Abstract: The overwhelming success of online social networks, the key actors in the Web 2.0 cosmos, has reshaped human interactions globally. To help understand the fundamental mechanisms which determine the fate of online social networks at the system level, we describe the digital world as a complex ecosystem of interacting networks. In this paper, we study the impact of heterogeneity in network fitnesses on the competition between an international network, such as Facebook, and local services. The higher fitness of international networks is induced by their ability to attract users from all over the world, which can then establish social interactions without the limitations of local networks. In other words, inter-country social ties lead to increased fitness of the international network. To study the competition between an international network and local ones, we construct a 1:1000 scale model of the digital world, consisting of the 80 countries with the most Internet users. Under certain conditions, this leads to the extinction of local networks; whereas under different conditions, local networks can persist and even dominate completely. In particular, our model suggests that, with the parameters that best reproduce the empirical overtake of Facebook, this overtake could have not taken place with a significant probability
Note: Reproducció del document publicat a: https://doi.org/10.1038/srep25116
It is part of: Scientific Reports, 2016, vol. 6, p. 25116
Related resource: https://doi.org/10.1038/srep25116
URI: http://hdl.handle.net/2445/114061
ISSN: 2045-2322
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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