I have performed K-Means(40) clustering on customer product purchases. I am pairing this data with Association Analysis (sometimes called market basket analysis) results to motivate cross-selling opportunities.

Upon inspection, it's clear that some K-Means clusters are similar to one another: Specifically in my case this might mean that one cluster has customers who bought products X and Y, and another sibling cluster grouped customers that bought X, Y, and Z.

I would like to analyze for cluster similarity, so that my inspection is more rigorous and repeatable.


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