Consider the following model to study adversarial effects on opinion forming. A set of initially selected experts form their binary opinion while being influenced by an adversary, who may convince some of them of the falsehood. All other participants in the network then take the opinion of the majority of their neighboring experts. Can the adversary influence the experts in such a way that the majority of the network believes the falsehood? Alon et al. [2] conjectured that in this context an iterative dissemination process will always be beneficial to the adversary. In this note we provide a counterexample to that conjecture.

中文翻译：

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迭代性对对抗性意见形成的影响

考虑以下模型来研究意见形成的对抗性影响。一组最初选定的专家在受到对手影响的同时形成了他们的二元观点，对手可能会让他们中的一些人相信谎言。然后，网络中的所有其他参与者都会听取大多数邻近专家的意见。对手是否可以影响专家，使网络中的大多数人相信谎言？阿隆等人。[2]推测在这种情况下，迭代传播过程总是对对手有利。在本文中，我们提供了该猜想的反例。