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Clustering documents with an exponential-family approximation of the Dirichlet compound multinomial distribution
ICML, pp.289-296, (2006)
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The Dirichlet compound multinomial (DCM) distribution, also called the multivariate Polya distribution, is a model for text documents that takes into account burstiness: the fact that if a word occurs once in a document, it is likely to occur repeatedly. We derive a new family of distributions that are approximations to DCM distributions ...More
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