Exact Recovery of Community Detection in k-Community Gaussian Mixture Model

08/29/2020 ∙ by Zhongyang Li, et al. ∙ 0

We study the community detection problem on a Gaussian mixture model, in which vertices are divided into k≥ 2 distinct communities. The major difference in our model is that the intensities for Gaussian perturbations are different for different entries in the observation matrix, and we do not assume that every community has the same number of vertices. We explicitly find the threshold for the exact recovery of the maximum likelihood estimation. Applications include the community detection on hypergraphs.

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