Confidence Sets for the Source of a Diffusion in Regular Trees

  title={Confidence Sets for the Source of a Diffusion in Regular Trees},
  author={Justin Khim and Po-Ling Loh},
  journal={IEEE Transactions on Network Science and Engineering},
  • Justin Khim, Po-Ling Loh
  • Published 19 October 2015
  • Mathematics, Computer Science
  • IEEE Transactions on Network Science and Engineering
We study the problem of identifying the source of a diffusion spreading over a regular tree. When the degree of each node is at least three, we show that it is possible to construct confidence sets for the diffusion source with size independent of the number of infected nodes. Our estimators are motivated by analogous results in the literature concerning identification of the root node in preferential attachment and uniform attachment trees. At the core of our proofs is a probabilistic analysis… 

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