通过将狂热者引入两极分化的社会群体来控制意见多样性
Towards control of opinion diversity by introducing zealots into a polarised social group
摘要：
我们探索一种方法来影响甚至控制两极分化的社会群体中的意见多样性。我们利用选民模型，在这个模型中，用户持有二元观点，并根据与他们联系的其他人反复更新他们的信念。顽固的代理人谁从来没有改变他们的想法（“狂热者”）也通过网络传播，这是由一个连接图建模。基于先前的结果，我们提供了一个封闭形式的表达的平均意见的组在平衡。这导致我们采取一种策略，将狂热者注入两极分化的网络，以将平均意见转向任何目标值。我们解释了可能存在的逆火效应，这可能会导致该集团作出负面反应，并加强其极化水平的回应。我们的结果得到了合成数据的数值实验的支持。
英文摘要：
We explore a method to influence or even control the diversity of opinions within a polarised social group. We leverage the voter model in which users hold binary opinions and repeatedly update their beliefs based on others they connect with. Stubborn agents who never change their minds ("zealots") are also disseminated through the network, which is modelled by a connected graph. Building on earlier results, we provide a closed-form expression for the average opinion of the group at equilibrium. This leads us to a strategy to inject zealots into a polarised network in order to shift the average opinion towards any target value. We account for the possible presence of a backfire effect, which may lead the group to react negatively and reinforce its level of polarisation in response. Our results are supported by numerical experiments on synthetic data.
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