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• W2261841894 abstract "Inference of low-dimensional structures, such as clusters, on large networks is a central problem in network science. An important class of models describing such structures is the Random Dot Product Graph (RDPG), which assigns low dimensional latent position vectors to nodes and computes edge probabilities using dot products between these vectors. The RDPG provides a more flexible network model compared with the standard Stochastic Block Model (SBM). In this paper, we introduce the Logistic RDPG, which uses a logistic link function mapping from latent positions to edge probabilities. The logistic RDPG includes most SBMs as well as other low-dimensional structures, such as degree-corrected models, that are not described by SBMs. Over this model, we derive a method for efficient, asymptotically exact maximum-likelihood inference of latent position vectors. Our method involves computing the top eigenvectors of the mean-centered adjacency matrix and performing a logistic regression step to recover the appropriate eigenvalue scaling. Applied to the network clustering problem on diverse synthetic network models, we illustrate that our method is more accurate and more robust than existing spectral and semidefinite network clustering methods." @default.
• W2261841894 created "2016-06-24" @default.
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• W2261841894 date "2015-10-03" @default.
• W2261841894 modified "2023-09-25" @default.
• W2261841894 title "Clustering over Logistic Random Dot Product Graphs" @default.
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