topic proportions in my corpus?

Question

Thanks for reading and taking the time to think about and respond to this.

I am using Gensim's wrapper for Mallet (ldamallet.py), and it works like a charm. I need to get the topic proportions for my corpus (over all my documents) and I do not know how to do that. model.alpha is not it as it is not normalized to 1. Plus, alpha contains my Dirichlet parameters, and not the topic proportions. Am I correct?

Any help is much appreciated.

Answer 1

When you call mallet from the command line, the switch --output-doc-topics gives you the topic composition (as a csv file).