Model Selection for Degree-corrected Block Models

  title={Model Selection for Degree-corrected Block Models},
  author={Xiaoran Yan and Jacob E. Jensen and Florent Krzakala and Cristopher Moore and Cosma Rohilla Shalizi and Lenka Zdeborov{\'a} and Pan Zhang and Yaojia Zhu},
  journal={Journal of statistical mechanics},
  volume={2014 5}
The proliferation of models for networks raises challenging problems of model selection: the data are sparse and globally dependent, and models are typically high-dimensional and have large numbers of latent variables. Together, these issues mean that the usual model-selection criteria do not work properly for networks. We illustrate these challenges, and show one way to resolve them, by considering the key network-analysis problem of dividing a graph into communities or blocks of nodes with… CONTINUE READING
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