A spectral estimator for the homophily parameter in large stochastic blockmodels with discrete covariates is asymptotically normal, scales better than variational EM, and detects homophily in Facebook data.
The first two terms of the variance are given above in Lemma A.1
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Spectral inference for large Stochastic Blockmodels with nodal covariates
A spectral estimator for the homophily parameter in large stochastic blockmodels with discrete covariates is asymptotically normal, scales better than variational EM, and detects homophily in Facebook data.