“…In the literature, some monotone classifiers have been proposed [2,3,7,6,18,11,27] but, as shown in [4], they deeply suffer from non-monotone noise present in the data and in many cases do not have classification accuracy as primary goal. Moreover, in order to ensure the monotonicity of the final classifier λ , a monotonization phase of the initial dataset or of the final classifier could be necessary [10,25], causing a possible loss of information.…”