albietz / dpmm

Variational inference for Dirichlet process mixture models with multinomial mixture components.

Variational inference for Dirichlet Process mixture models with multinomial mixture components. You can find more information in this report. Based on the following paper:

Blei, D. M., & Jordan, M. I. (2006). Variational inference for Dirichlet process mixtures. Bayesian analysis, 1(1), 121-143. pdf

You can get an example dataset here (2246 documents from the Associated Press, from David Blei).

dpmm's Issues

Request for detailed inference of one Equation

Could you please release the detailed inference of this equation? Thanks

The question of the update function

Thank you for your contributions. It helps a lot. But I have some questions, looking forward to your reply:

When you get the update equations, How do you get the derivative of the digamma function?
How do you get lambda in the update function. Since there are no lambda in the lower bound.

Thank you for your precious time.