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arXiv 1106.0872physics.soc-phcs.SI
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社交网络中的意见传播模型

Model of Opinion Spreading in Social Networks

Igor Kanovsky, Omer Yaary

摘要:

我们提出了一个新的模型,它捕捉信息和意见传播之间的主要区别。在信息传播中,额外接触某些信息的影响很小。相反,当一个行动者接触到两个有意见的行动者时,他接受这个意见的可能性要比接触一个这样的行动者时高得多(J. Kleinberg称之为“0-1-2效应”)。在每个时间步中,如果一个参与者没有意见,我们随机选择2个他的网络邻居。如果他们中的一个有一个意见,演员采用的意见与一些低概率,如果两个-与较高的概率。在不同的现实世界社交网络和相似的随机无标度网络上模拟了意见传播。结果表明,小世界结构对临界点时间有着至关重要的影响.“0-1-2”效应导致行动者启动舆论传播能力的显著差异。根据他在网络中的拓扑位置,演员是一个影响者。

英文摘要:

We proposed a new model, which capture the main difference between information and opinion spreading. In information spreading additional exposure to certain information has a small effect. Contrary, when an actor is exposed to 2 opinioned actors the probability to adopt the opinion is significant higher than in the case of contact with one such actor (called by J. Kleinberg "the 0-1-2 effect"). In each time step if an actor does not have an opinion, we randomly choose 2 his network neighbors. If one of them has an opinion, the actor adopts opinion with some low probability, if two - with a higher probability. Opinion spreading was simulated on different real world social networks and similar random scale-free networks. The results show that small world structure has a crucial impact on tipping point time. The "0-1-2" effect causes a significant difference between ability of the actors to start opinion spreading. Actor is an influencer according to his topological position in the network.

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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