Gradient Boost Part 3 (of 4): Classification @statquest
Gradient Boost Part 3 (of 4): Classification  @statquest
Uploaded April 2019 | Updated September 2026, 1 week ago
This is Part 3 in our series on Gradient Boost. At long last, we are showing how it can be used for classification. This video gives focuses on the main ideas behind this technique. The next video in this series will focus more on the math and how it works with the underlying algorithm.

This StatQuest assumes that you have already watched Part 1:
youtu.be/3CC4N4z3GJc

...and it also assumed that you understand Logistic Regression pretty well. Here are the links for...

A general overview of Logistic Regression: youtu.be/yIYKR4sgzI8
how to interpret the coefficients: youtu.be/vN5cNN2-HWE
and how to estimate the coefficients: youtu.be/BfKanl1aSG0

Lastly, if you want to learn more about using different probability thresholds for classification, check out the StatQuest on ROC and AUC: youtu.be/xugjARegisk

This StatQuest is based on the following sources:

A 1999 manuscript by Jerome Friedman that introduced Stochastic Gradient Boost: https://statweb.stanford.edu/~jhf/ftp/stobst.pdf

The Wikipedia article on Gradient Boosting: en.wikipedia.org/wiki/Gradient_boosting

The scikit-learn implementation of Gradient Boosting: scikit-learn.org/stable/modules/ensemble.html#gradient-boosting

For a complete index of all the StatQuest videos, check out:
statquest.org/video-index

If you'd like to support StatQuest, please consider...

Patreon: patreon.com/statquest
...or...
YouTube Membership: youtube.com/channel/UCtYLUTtgS3k1Fg4y5tAhLbw/join

...buying one of my books, a study guide, a t-shirt or hoodie, or a song from the StatQuest store...
statquest.org/statquest-store

...or just donating to StatQuest!
paypal.me/statquest

Lastly, if you want to keep up with me as I research and create new StatQuests, follow me on twitter:
twitter.com/joshuastarmer

#statquest #gradientboost
Gradient Boost Part 3 (of 4): ClassificationThe AI Buzz, Episode #1: ChatGPT, Transformers and AttentionIntroduction to Coding Neural Networks with PyTorch and LightningHuman Stories in AI: Fabio UrbinaHuman Stories in AI: Achal DixitThe Simplex Algorithm, Mathematical Details!!!Human Stories in AI: Amy FinneganStatQuest: Random Forests Part 2: Missing data and clusteringMultiple Regression in R, Step by Step!!!XGBoost Part 4 (of 4): Crazy Cool OptimizationsNormalized DataMaximum Likelihood for the Exponential Distribution, Clearly Explained!!!
StatQuest with Josh Starmer |

Gradient Boost Part 3 (of 4): Classification

SHARE TO X SHARE TO REDDIT SHARE TO FACEBOOK WALLPAPER