olemus
andmeobjektide loogiline klasterdamine, mis rakendab kvantitatiivseid sarnasusnäitajaid ja matemaatilisi meetodeid
= a statistical method for processing data: organizing items into clusters on the basis of how closely associated they are

ülevaateid
https://en.wikipedia.org/wiki/Cluster_analysis
https://cnls.lanl.gov/external/qbio2018/Slides/Cluster_Lab_June18/qBio_Clustering_Lecture.pdf
http://www.stat.columbia.edu/~madigan/W2025/notes/clustering.pdf
https://www-users.cs.umn.edu/~kumar001/dmbook/ch8.pdf