I Started Writing a Book!
Over the last couple of years I have been doing a fair amount of NLP work in my day to day. One of the methods I often use for dimensionality reduction and summarization of text is Latent Dirichlet Allocation (LDA).
In an effort to gain a deeper understanding of all the moving parts of LDA, I started writing a short gitbook focused on LDA and Gibbs Sampling. You can check it out at ldabook.com. Feel free to contact me via with comments or suggestions.