Computer scienceData scienceMachine learningClusteringClustering evaluation

Silhouette coefficient

Theory

Silhouette step-by-step

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Rearrange the steps of calculating the silhouette coefficient(SC) for a single dataset into the correct order:

Put the items in the correct order
Calculate the average distance between the selected point and all other points inside that cluster(cohesion)
Substitute the calculated values into the silhouette score formula
Choose a point in a cluster
Calculate the average distance between the selected point and the other clusters in the dataset(separation)
Set the separation to be equal to the minimum values from all average intra-cluster distances from the previous step
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