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I am looking for a good book about unsupervised learning that goes beyond the typical k-means and hierarchical clustering algorithms.

Practical implementations in R or Python will be a plus.

Currently I am working in retail, so the typical use cases I am interested are customer segmentation, products segmentation.

Any ideas?

Don't forget about lecture notes and slides. I recently saw some very good cluster analysis lecture slides. – Has QUIT--Anony-Mousse – 2018-04-30T19:00:48.013