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Pré-Publication, Document De Travail Année : 2022

Opinion Shaping in Social Networks Using Reinforcement Learning

Résumé

In this article, we consider a variant of the classical DeGroot model of opinion propagation with random interactions, in which a prescribed subset of agents is amenable to a control parameter. There are also some stubborn agents and some agents that are neither stubborn nor amenable to control. We map the problem to a shortest path problem, where the control parameter is coupled across controlled nodes because of a common resource constraint. Hence, the problem is not amenable to a pure dynamic programming approach, and the classical reinforcement learning schemes for the latter cannot be applied here for maximizing average influence in the long run. We view it instead as a parametric optimization problem and not a control problem and use a nonclassical policy gradient scheme. We analyze its performance theoretically and through numerical experiments. We also consider a situation when only certain interactions between agents are observed.
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Dates et versions

hal-04327548 , version 1 (11-12-2023)

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Vivek S Borkar, Alexandre Reiffers-Masson. Opinion Shaping in Social Networks Using Reinforcement Learning. 2023. ⟨hal-04327548⟩
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