Corpus ID: 2836094

Convex relaxation for finding planted influential nodes in a social network

  title={Convex relaxation for finding planted influential nodes in a social network},
  author={Lisa Elkin and Ting Kei Pong and Stephen A. Vavasis},
We consider the problem of maximizing influence in a social network. We focus on the case that the social network is a directed bipartite graph whose arcs join senders to receivers. We consider both the case of deterministic networks and probabilistic graphical models, that is, the so-called “cascade” model. The problem is to find the set of the k most influential senders for a given integer k. Although this problem is NP-hard, there is a polynomial-time approximation algorithm due to Kempe… Expand
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