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On Fast and Effective Influence Spread Maximization in Social Networks
  • Paolo Scarabaggio ,
  • Raffaele Carli ,
  • Mariagrazia Dotoli
Paolo Scarabaggio
Politecnico di Bari, Politecnico di Bari

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Raffaele Carli
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Mariagrazia Dotoli
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The ability of social networks to disseminate information across individuals and groups is based on the social influence that people have on each other.
In this context, the so-called influence maximization problem consists in identifying the most influential nodes of a given social network.
This problem has practical relevance in a wide range of applications and despite the underlying computational complexity, several solution techniques have been presented in the related literature. Nonetheless, bringing together technical feasibility and satisfactory accuracy is still a challenging open research issue.
In this work, we address the influence maximization problem with two complementary contributions. First, we analyze two well-known influence diffusion models, namely the independent cascade and the linear threshold models, and provide a new methodology for addressing the problem of computing the influence spread in a given network. Subsequently, we propose a novel approach to select an initial set of nodes that optimizes the influence spread in large-scale scenarios.
We apply these techniques to several large-scale experiments in real-world scenarios achieving results comparable with the best-performing state-of-the-art algorithms in a shorter computational time.
This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible.