where QPi is the ist quality parameter; I, II, III, IV are the quality classes in traditional classification; Nis the number of quality parameters. In the rule bases the ‘‘or’’ operators are used to obtain maximum values.
where QPi is the ist quality parameter; I, II,III, IV are the quality classes in traditionalclassification; Nis the number of qualityparameters. In the rule bases the ‘‘or’’operators are used to obtain maximumvalues.