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arXiv 1504.01368physics.soc-phcs.SI
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全球和地方在线社交网络之间的竞争

Competition between global and local online social networks

Kaj-Kolja Kleineberg, Marian Boguna

摘要:

网络社交网络是Web 2.0世界的关键角色,它的巨大成功重塑了全球人类的互动。为了帮助理解在系统层面上决定在线社交网络命运的基本机制,我们将数字世界描述为一个复杂的交互网络生态系统。在本文中,我们研究了网络适应性异质性对国际网络(如Facebook)和本地服务之间竞争的影响。国际网络的更高适应性是由它们吸引来自世界各地的用户的能力引起的,这些用户可以在没有本地网络限制的情况下建立社交互动。换句话说,国家间的社会联系导致国际网络的适应性增加。为了研究国际网络和本地网络之间的竞争,我们构建了一个1:1000比例的数字世界模型,由互联网用户最多的80个国家组成。在某些条件下,这会导致局部网络的消亡;而在不同的条件下,局部网络可以持续存在,甚至完全占据主导地位。特别是,我们的模型表明,使用最能再现Facebook经验超越的参数,这种超越可能不会以很大的概率发生。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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