Unsupervised classification method which partitions objects into \(k\) groups, in which each object belongs to the group with the nearest mean.
Note: Although \(k\)-means clustering is called unsupervised classification the value of \(k\) may be specified.
Source:
PAC, 2016, 88, 407. 'Vocabulary of concepts and terms in chemometrics (IUPAC Recommendations 2016)' on page 429 (https://doi.org/10.1515/pac-2015-0605)