Block clustering with collapsed latent block models

Details Block clustering with collapsed latent block models Block clustering with collapsed latent block models

2010-11-12

arxiv.org/abs/1011.2948v1

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Scientific paper

We introduce a Bayesian extension of the latent block model for model-based block clustering of data matrices. Our approach considers a block model where block parameters may be integrated out. The result is a posterior defined over the number of clusters in rows and columns and cluster memberships. The number of row and column clusters need not be known in advance as these are sampled along with cluster memberhips using Markov chain Monte Carlo. This differs from existing work on latent block models, where the number of clusters is assumed known or is chosen using some information criteria. We analyze both simulated and real data to validate the technique.

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