arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0907.1719physics.soc-phcond-mat.stat-mech
收藏

复杂社会经济网络中的可沟通性与社区

Communicability and Communities in Complex Socio-Economic Networks

Ernesto Estrada, Naomichi Hatano

摘要:

针对复杂的社会经济网络引入了可通信性的概念。可通信性函数表示影响如何在网络中从一个地方传播到另一个地方。这一职能被用来明确界定社会经济共同体的概念。温度的概念在复杂的社会经济网络中也被引入,作为一种方式来解释这些系统所受到的外部压力。这种外部压力可以极大地改变网络中社区的结构。我们在这里分析了一个出口金属杂项制品的国家的贸易网络。“我们确定了这个网络的社区结构,显示有27个社区具有不同程度的重叠。当只有社区与小于80%的重叠被认为是我们发现5个社区,这是很好的特点,在地缘政治关系方面。对这些社区所受外部压力的分析表明,一些国家受到这些危急局势的严重影响,经济危机。这些最薄弱的环节是明确确定的,代表着一旦系统的外部“温度”升高就与主要贸易隔绝的国家。目前的方法增加了一个重要的工具,在现实世界中的社会经济网络的分析。

英文摘要:

The concept of communicability is introduced for complex socio-economic networks. The communicability function expresses how an impact propagates from one place to another in the network. This function is used to define unambiguously the concept of socio-economic community. The concept of temperature in complex socio-economic networks is also introduced as a way of accounting for the external stresses to which such systems are submitted. This external stress can change dramatically the structure of the communities in a network. We analyze here a trade network of countries exporting 'miscellaneous manufactures of metal.' We determine the community structure of this network showing that there are 27 communities with diverse degree of overlapping. When only communities with less than 80% of overlap are considered we found 5 communities which are well characterized in terms of geopolitical relationships. The analysis of external stress on these communities reveals that several countries are very much influenced by these critical situations, i.e., economical crisis. These weakest links are clearly identified and represent countries that are isolated from the main trade as soon as the external "temperature" of the system is increased. The current approach adds an important tool for the analysis of socio-economic networks in the real-world.

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。

↑