Must cluster analysis algorithms are unsupervised, this means that the analyst does not impose any structure on to the classification, instead the classification 'emerges' from the data Later, we may wish to investigate if the classification matches some other grouping criteria (e g gender or species)
not supervised or under constant observation; "the school maintains unsupervised study halls during free periods"; "reliable workers are generally unsupervised
Training Image classification procedure in which the computer identifies inherent patterns in the spectral data and uses a clustering algorithm to order pixels into discrete classes
classification - Digital information extraction technique in which the computer assigns pixels to categories with no instructions from the operator UV - Region of the electromagnetic spectrum ranging in wavelengths from 0 01 to 0 4m --picture