7. The method of claim 6 , comprising: determining a range of discrete integer confidence values for the equivalence relationship; and performing linear interpolation to determine any missing values in the range of discrete integer confidence values for the equivalence relationship.
6. The method of claim 5 , comprising: determining an equivalence relationship between the first mapping function and the second mapping function, wherein adjusting the confidence scoring functionality comprises adjusting the confidence scoring functionality based on the equivalence relationship between the first mapping function and the second mapping function.