How does the Elbow Method determine the optimal number of clusters, and what are its limitations?

  • By evaluating the model's accuracy
  • By finding the point of maximum curvature on a plot of variance vs. clusters
  • By maximizing the cluster distances
  • By minimizing the inter-cluster distances
The Elbow Method determines the optimal number of clusters by finding the "elbow" point on a plot of variance vs. clusters. Limitations include ambiguity in identifying the exact "elbow" and sensitivity to initialization.
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