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Belief Control Strategies for Interactions over Weak Graphs

by   Hawraa Salami, et al.

In diffusion social learning over weakly-connected graphs, it has been shown recently that influential agents end up shaping the beliefs of non-influential agents. This paper analyzes this control mechanism more closely and addresses two main questions. First, the article examines how much freedom influential agents have in controlling the beliefs of the receiving agents. That is, the derivations clarify whether receiving agents can be driven to arbitrary beliefs and whether the network structure limits the scope of control by the influential agents. Second, even if there is a limit to what influential agents can accomplish, this article develops mechanisms by which these agents can lead receiving agents to adopt certain beliefs. These questions raise interesting possibilities about belief control over networked agents. Once addressed, one ends up with design procedures that allow influential agents to drive other agents to endorse particular beliefs regardless of their local observations or convictions. The theoretical findings are illustrated by means of several examples.


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