Take the 2-minute tour ×
Cross Validated is a question and answer site for people interested in statistics, machine learning, data analysis, data mining, and data visualization. It's 100% free, no registration required.

While drawing graphs that compare the silhouette measure of different clustering algorithms, what unit should I specify for the silhouette width?

share|improve this question
add comment

1 Answer

Don't use the Silhouette measure for arbitrary clustering algorithms. In particular, don't use it for clustering algorithms which can produce non-convex clusters.

On data sets such as this:

https://en.wikipedia.org/wiki/File:SLINK-density-data.svg

the silhouette may be misleading.

The silhouette coefficient and silhouette plots are meant to compare different results of the same, convex, clustering algorithm (e.g. k-means).

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.