9. The method according to claim 1 , wherein the set of match metrics comprise the set of loss indexes corresponding to the set of available candidate types and wherein calculating the set of match metrics further comprises: calculating, by the processor, a set of excess indexes, wherein each excess index corresponds to an available candidate type and wherein the excess index measures exceeding ones of the set of fields of the available candidate type being not assignable by the set of elements.
9. The method according to claim 1 , wherein the set of match metrics comprise the set of loss indexes corresponding to the set of available candidate types and wherein calculating the set of match metrics further comprises: calculating, by the processor, a set of excess indexes, wherein each excess index corresponds to an available candidate type and wherein the excess index measures exceeding ones of the set of fields of the available candidate type being not assignable by the set of elements. 10. The method according to claim 9 , wherein each excess index comprises a number of bits of exceeding fields.