Preferential attachment in the growth of social networks: The internet encyclopedia Wikipedia
Preferential attachment in the growth of social networks: The internet encyclopedia Wikipedia
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DOI：
10.1103/physreve.74.036116
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发表时间：
2006-09-01
影响因子：
2.4
通讯作者：
Caldarelli, G.
中科院分区：
文献类型：
--
作者：
Capocci, A.;Servedio, V. D. P.;Caldarelli, G.
我们对免费在线百科全书维基百科的统计特性和增长进行了分析。通过用顶点和它们之间的超链接作为边来描述主题，我们可以将这个百科全书表示为一个有向图。这个图的拓扑属性与万维网的拓扑属性非常相似，尽管它们的增长机制非常不同。特别是，我们测量了进出度的尺度不变分布，并且我们能够通过简单的统计模型再现这些特征。其主要后果是，维基百科的发展可以用优先依恋机制等局部规则来描述，尽管对其演变负有责任的用户可以在网络上采取全球行动。
We present an analysis of the statistical properties and growth of the free on-line encyclopedia Wikipedia. By describing topics by vertices and hyperlinks between them as edges, we can represent this encyclopedia as a directed graph. The topological properties of this graph are in close analogy with those of the World Wide Web, despite the very different growth mechanism. In particular, we measure a scale-invariant distribution of the in and out degree and we are able to reproduce these features by means of a simple statistical model. As a major consequence, Wikipedia growth can be described by local rules such as the preferential attachment mechanism, though users, who are responsible of its evolution, can act globally on the network.