The FFS is an influential extension of the available IFS and PFS, whose benefit to better exhaustively characterize ambiguous information. For FFSs, correlation between them usually evaluated by coefficient. To reflect perspective professionals, in this paper, a new coefficient FFSs proposed investigated. very important frequently used every field from engineering economics, technology science....

Correlation coefficients and associated squared values are used as assessment parameters in validation of structure-activity relationships. Seven correlation coefficients were calculated for models that characterized the relationship between chemical structure the herbicidal activity of a triazine analogues series. Three previously reported models were compared by using Pearson (rPrs), Spearman...