Computer scienceData scienceMachine learningClusteringClustering evaluation

Silhouette coefficient

Considering cohesion and separation

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What do cohesion and separation tell us about the clustering quality?

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Cohesion shows the similarity of the datapoints within a single cluster

Separation measures how distant the datapoints are within the cluster

Cohesion estimates the relative density of the cluster

Separation measures the distance between the clusters

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