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Representing Degree Distributions, Clustering, and Homophily in Social Networks With Latent Cluster Random Effects Models.


ABSTRACT: Social network data often involve transitivity, homophily on observed attributes, clustering, and heterogeneity of actor degrees. We propose a latent cluster random effects model to represent all of these features, and we describe a Bayesian estimation method for it. The model is applicable to both binary and non-binary network data. We illustrate the model using two real datasets. We also apply it to two simulated network datasets with the same, highly skewed, degree distribution, but very different network behavior: one unstructured and the other with transitivity and clustering. Models based on degree distributions, such as scale-free, preferential attachment and power-law models, cannot distinguish between these very different situations, but our model does.

SUBMITTER: Krivitsky PN 

PROVIDER: S-EPMC2827882 | biostudies-other | 2009 Jul

REPOSITORIES: biostudies-other

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Representing Degree Distributions, Clustering, and Homophily in Social Networks With Latent Cluster Random Effects Models.

Krivitsky Pavel N PN   Handcock Mark S MS   Raftery Adrian E AE   Hoff Peter D PD  

Social networks 20090701 3


Social network data often involve transitivity, homophily on observed attributes, clustering, and heterogeneity of actor degrees. We propose a latent cluster random effects model to represent all of these features, and we describe a Bayesian estimation method for it. The model is applicable to both binary and non-binary network data. We illustrate the model using two real datasets. We also apply it to two simulated network datasets with the same, highly skewed, degree distribution, but very diff  ...[more]

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