Achieving Exact Cluster Recovery Threshold via Semidefinite Programming: Extensions

26 Feb 2015Bruce HajekYihong WuJiaming Xu

Resolving a conjecture of Abbe, Bandeira and Hall, the authors have recently shown that the semidefinite programming (SDP) relaxation of the maximum likelihood estimator achieves the sharp threshold for exactly recovering the community structure under the binary stochastic block model of two equal-sized clusters. The same was shown for the case of a single cluster and outliers... (read more)

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