[MAHOUT-684] Topics regularization for LDA

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Fix Version/s: 0.8
• Component/s: classic
• Labels: LDA.
• Assignee: Jake Mannix
• Reporter: Vasil Vasilev
• Created: 28/Apr/11 13:28
• Updated: 31/Jan/24 22:14
• Resolved: 01/Jun/13 21:53

Description

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).