How LDA Groups Words Into Topics
The intuition behind the model.
The Big Idea
LDA assumes every document was written by mixing a few topics, and every topic prefers certain words. It works backwards to recover both.
Two Hidden Recipes
LDA learns two things at once: which topics each document uses, and which words each topic favors. Both are hidden until the model finds them. 🍳
All lessons in this course
- What Topic Modeling Solves
- How LDA Groups Words Into Topics
- Running LDA With Gensim
- Interpreting and Labeling Topics