Two supervised classifiers based on Certainty Factors (CFs) are descri
bed; in particular, a new algorithm for the generation of the base of
classification rules is proposed. Such an algorithm specifies what ''e
vents'' should be used as conditions and with what CFs rules may assig
n samples to classes. The main novelty lies in the definition of event
s as one-dimensional adaptively computed functions. Interesting featur
es of the proposed classifiers are the use of comprehensible classific
ation criteria and the automatic ''knowledge acquisition'' from traini
ng patterns. Experimental results obtained in the case of multisensori
al remote-sensing images are reported.