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. 2011 Dec 6;6(12):e27506. doi: 10.1371/journal.pone.0027506

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He et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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are the Dirichlet priors for the distribution of bio-terms over topics, topic over words, and journals over topics. B is the total set of bio-terms. T denotes the total set of topics. D is the overall set of documents. N_d is the set of words in a given document d.

Inline graphic — are the Dirichlet priors for the distribution of bio-terms over topics, topic over words, and journals over topics. B is the total set of bio-terms. T denotes the total set of topics. D is the overall set of documents. N_d is the set of words in a given document d.