Topics regularization for LDA
-----------------------------
Key: MAHOUT-684
URL: https://issues.apache.org/jira/browse/MAHOUT-684
Project: Mahout
Issue Type: Improvement
Components: Clustering
Reporter: Vasil Vasilev
Priority: Minor
Implementation provided for the alpha parameters estimation as described in the
paper of Blei, Ng and Jordan
(http://www.cs.princeton.edu/~blei/papers/BleiNgJordan2003.pdf).
Remark: there is a mistake in the last formula in A.4.2 (the signs are wrong).
The correct version is described here:
http://www.cs.cmu.edu/~jch1/research/dirichlet/dirichlet.pdf (page 6).
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