Positive influence dominating sets in power-law graphs

Wei Zhang, Weili Wu, Feng Wang, Kuai Xu

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


Finding the minimum Positive Influence Dominating Set (PIDS) is a problem arisen from the social network applications. The problem has been studied on general random graphs. However, the social networks is presented more precisely by power-law graphs. One of the most important properties of social networks is the power-law degree distribution. In this paper, we focus on the PIDS problem in power-law graphs and prove that the greedy algorithm has a constant approximation ratio. Simulation results also demonstrate that greedy algorithm can effectively select a small scale PIDS set.

Original languageEnglish (US)
Pages (from-to)31-37
Number of pages7
JournalSocial Network Analysis and Mining
Issue number1
StatePublished - Jan 1 2012


  • Greedy algorithm
  • Positive influence dominating set problem
  • Power-law distribution
  • Social networks

ASJC Scopus subject areas

  • Information Systems
  • Communication
  • Media Technology
  • Human-Computer Interaction
  • Computer Science Applications


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