12. The method of claim 1 , wherein the plurality of candidate target types comprises an undeterminable target type.
12. The method of claim 1 , wherein the plurality of candidate target types comprises an undeterminable target type. 14. The method of claim 12 , wherein the using of a second set of class designation rules to produce a second class designation comprises producing a second class designation corresponding to the undeterminable target type when each of the second plurality of probability likelihoods is less than a second threshold.