Topic Models Conditioned on Arbitrary Features with Dirichlet-multinomial Regression

author: Andrew McCallum, Department of Computer Science, University of Massachusetts Amherst
published: July 30, 2008,   recorded: July 2008,   views: 5992

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Although fully generative models have been successfully used to model the contents of text documents, they are often awkward to apply to combinations of text data and document metadata. In this paper we propose a Dirichlet-multinomial regression (DMR) topic model that includes a log-linear prior on document-topic distributions that is a function of observed features of the document, such as author, publication venue, references, and dates. We show that by selecting appropriate features, DMR topic models can meet or exceed the performance of several previously published topic models designed for specific data.

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