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Infinite Sparse Block Model with Text Using 2DCRP

6 April 2015
Ryohei Hisano
ArXiv (abs)PDFHTML
Abstract

The roles and interactions which nodes take part in has a significant impact on the structure of a network. In order to estimate this underlying latent structure, its numbers and composition from real data, flexible treatment of the structural uncertainty and efficient use of available information becomes a key issue. I take a Bayesian nonparametric approach, jointly modeling sparse network, node textual information and potentially unbounded number of components to handle the aforementioned task. I show using synthetic and real datasets that my model successfully learns the underlying structure utperforming previous method.

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