  Latent Dirichlet Allocation (LDA) model is a famous model in the topic model
field, it has been studied for years due to its extensive application value in
industry and academia. However, the mathematical derivation of LDA model is
challenging and difficult, which makes it difficult for the beginners to learn.
To help the beginners in learning LDA, this book analyzes the mathematical
derivation of LDA in detail, and it also introduces all the knowledge
background to make it easy for beginners to understand. Thus, this book
contains the author's unique insights. It should be noted that this book is
written in Chinese.
