Implement Gibbs Sampling for Latent Dirichlet Allocation/LDA (In JAVA)

There are many LDA tools available on the internet nowadays. Gibbs sampling is mostly used for posterior inference in LDA. It would be better if we could understand how Gibbs Sampling works for LDA. This tutorial shows you Toy Implementation of Gibbs Sampling (for LDA) using JAVA programming language. Some simple explanations are also provided here.

I assume you have already known/at least read some materials regarding dirichlet distribution, bayesian network, mixture modelling, and generative model.

This tutorial is based on these following materials, reading these materials is absolutely recommended:

• Parameter Estimation for Text Analysis.
• Intergrating Out Multinomial Parameters in LDA and NB for Collapsed Gibbs Sampling.
• A Theoretical and Practical Implementation Tutorial of Topic Modling and Gibbs Sampling.

See the complete TUTORIAL and the CODE here