arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.00099cs.SI
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建模社交网络算法如何影响意见极化

Modeling how social network algorithms can influence opinion polarization

Henrique F. de Arruda, Felipe M. Cardoso, Guilherme F. de Arruda, Alexis R. Hernández, Luciano da F. Costa, Yamir Moreno

摘要:

在社交网络的不同方面中,动力学已经被提出来模拟意见如何被传输。在这项研究中,我们提出了一个模型,模拟在一个在线的社交网络,其中的职位是从外部信息创建的通信。我们将网络的节点和边分别视为用户和他们的友谊。一个实数与代表其意见的每个用户相关联。动态开始于与随机意见有联系的用户,并且根据给定的概率函数,这个人可以发布这个意见。这一步在下文中称为后传递。在下一个步骤中,称为帖子分布,另一个概率函数被用来选择可以看到帖子的用户的朋友。帖子传输和分发分别表示用户和社交网络算法。如果一个人与一个帖子有联系,它的观点可能会被吸引或排斥。此外,被拒绝的人可以通过重新布线来改变他们的友谊。这些步骤被多次执行,直到动态收敛。取得了一些令人印象深刻的成果,其中包括形成了两极分化和意见一致的局面。在回声室的情况下,重新布线概率的可能性被发现是决定性的。然而,对于特定的网络拓扑结构,具有明确定义的社区结构,这种影响也可能发生。总之,研究结果表明,职位分配策略是缓解或促进两极分化的关键。

英文摘要:

Among different aspects of social networks, dynamics have been proposed to simulate how opinions can be transmitted. In this study, we propose a model that simulates the communication in an online social network, in which the posts are created from external information. We considered the nodes and edges of a network as users and their friendship, respectively. A real number is associated with each user representing its opinion. The dynamics starts with a user that has contact with a random opinion, and, according to a given probability function, this individual can post this opinion. This step is henceforth called post transmission. In the next step, called post distribution, another probability function is employed to select the user's friends that could see the post. Post transmission and distribution represent the user and the social network algorithm, respectively. If an individual has contact with a post, its opinion can be attracted or repulsed. Furthermore, individuals that are repulsed can change their friendship through a rewiring. These steps are executed various times until the dynamics converge. Several impressive results were obtained, which include the formation of scenarios of polarization and consensus of opinions. In the case of echo chambers, the possibility of rewiring probability is found to be decisive. However, for particular network topologies, with a well-defined community structure, this effect can also happen. All in all, the results indicate that the post distribution strategy is crucial to mitigate or promote polarization.

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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