Fixed bound computation mistake in author-topic model#1156
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…gnments by the number of words in the document.
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Noticed a mistake in the
boundmethod of the author-topic model (atmodel). This is a very simple fix.Basically, I forgot to multiply the expectation over author assignments (
np.log(1.0 / len(authors_d))) by the number of words in the documentsum(cts), and fixed that in this PR.This fix changes the bound, only by adding a factor that depends only on the data (constant w.r.t. the model).