Concentration of random graphs and application to community detection [article]

Can M. Le, Elizaveta Levina, Roman Vershynin
2018 arXiv   pre-print
Random matrix theory has played an important role in recent work on statistical network analysis. In this paper, we review recent results on regimes of concentration of random graphs around their expectation, showing that dense graphs concentrate and sparse graphs concentrate after regularization. We also review relevant network models that may be of interest to probabilists considering directions for new random matrix theory developments, and random matrix theory tools that may be of interest
more » ... o statisticians looking to prove properties of network algorithms. Applications of concentration results to the problem of community detection in networks are discussed in detail.
arXiv:1801.08724v1 fatcat:hokwnjsykrgexgp7256hatau4q