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Inertia (Within-Cluster Sum of Squares)/Evidence
Method evidence record

Inertia (Within-Cluster Sum of Squares)

Inertia, also called Within-Cluster Sum of Squares (WCSS), is a measure of cluster cohesion that quantifies how tightly points are grouped around their cluster centroids. Lower values indicate more compact, cohesive clusters. Inertia is the primary objective function for k-means clustering and has been a fundamental metric since the method's introduction.

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Source record

Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.

Inertia: Sum of Squared Distances to Cluster Centroids
Taxonomic method record · mcdm / model-evaluation
  • Lloyd, S. P. (1982). Least squares quantization in PCM. IEEE Transactions on Information Theory, 28(2), 129-137. · DOI 10.1109/TIT.1982.1056489
  • MacQueen, J. (1967). Some methods for classification and analysis of multivariate observations. In Proceedings of the Fifth Berkeley Symposium on Mathematical Statistics and Probability (Vol. 1, pp. 281-297). · URL
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Related methods

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Same method familyCalinski-Harabasz Indexmachine-suggested · Relational suggestion, not evidence.Same method familyDavies-Bouldin Indexmachine-suggested · Relational suggestion, not evidence.Same method familyDunn Indexmachine-suggested · Relational suggestion, not evidence.Same method familyElbow Methodmachine-suggested · Relational suggestion, not evidence.Same method familySilhouette Scoremachine-suggested · Relational suggestion, not evidence.

Evidence status

Sources recorded, not reviewed

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Sources

2 recorded citations, copied from the method source record.

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