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Latent Dirichlet Allocation - Part 1

Serrano.Academy via YouTube

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Overview

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This introductory video explains the problem LDA solves and develops its probabilistic blueprint using document-topic and topic-word Dirichlet distributions. Model training with Gibbs sampling is deferred to the second video.

Syllabus

Introduction
The problem
Machine that generates documents
Blueprint for the LDA machine
Probability of a document
Quiz: Which one for topics?
A distribution of distributions
More topics? More dimensions
In More dimensions
Quiz: Where to put the topics?
Two Dirichlet distributions
Latent Dirichlet Allocation
Best settings on the machine
The winning arrangements
Series of two videos
Acknowledgements
Thank you!

Taught by

Serrano.Academy

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