Home Artificial Intelligence Understanding Latent Dirichlet Allocation (LDA) — A Data Scientist’s Guide (Part 2)

Understanding Latent Dirichlet Allocation (LDA) — A Data Scientist’s Guide (Part 2)

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Understanding Latent Dirichlet Allocation (LDA) — A Data Scientist’s Guide (Part 2)

LDA Convergence Explained with a Dog Pedigree Model

“What if my a priori understanding of dog breed group distribution is inaccurate? Is my LDA model doomed?”

My wife asked.

Welcome back to part 2 of the series, where I share my journey of explaining LDA to my wife. Within the previous blog post, we discussed how LDA works and the way it could be understood as a dog pedigree model.

This time around, let’s dive into the iterative fitting means of LDA!

Part 1 (link):

  • How does LDA work?
  • The best way to explain LDA to a non-technical person?

Part 2 (We’re here now!):

  • How does LDA improve iteratively?
  • How does LDA converge?
  • Bonus: Get your LDA cheatsheet here!

Part 3:

  • When to make use of LDA & when to not?
  • How can we use it in Python?
  • What are the alternatives & variants to LDAs (excluding LLMs)?

Let’s start.

If you might have not read part 1 of the series, I strongly encourage you to read it first, as we are going to construct on that understanding.

Quick Recap from Part 1

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