1. An identification apparatus, comprising: a data obtaining unit that obtains input data; a feature quantity obtaining unit that obtains a feature quantity corresponding to the input data; a plurality of classifiers that receive input of the feature quantity and perform classification based on the input feature quantity; an identification unit that inputs the feature quantity into each of the classifiers, and generates a single second classification result based on a plurality of classification results obtained from the classifiers; and a reliability generation unit that generates a reliability of the second classification result based on variations across the plurality of classification results.