Elbow method

Concept

A heuristic used in determining the optimal number of clusters in a data set, often visualized as an 'elbow' in a plot of the within-cluster sum of squares against the number of clusters.

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Videos Mentioning Elbow method

Stanford CS229 Machine Learning | Spring 2026 | Lecture 9: K-Means and GMM (non-EM)

Stanford CS229 Machine Learning | Spring 2026 | Lecture 9: K-Means and GMM (non-EM)

Stanford Online

A heuristic used in determining the optimal number of clusters in a data set, often visualized as an 'elbow' in a plot of the within-cluster sum of squares against the number of clusters.