Gc. Vasconcelos et al., ENHANCED RELIABILITY OF MULTILAYER PERCEPTRON NETWORKS THROUGH CONTROLLED PATTERN REJECTION, Electronics Letters, 29(3), 1993, pp. 261-263
Backpropagation networks are studied in the context of the recognition
of handwritten and machine printed characters and, specifically, the
problem of the recognition of 'false-positive' patterns is investigate
d. The idea is proposed of integrating into the processing architectur
e an independent set of 'guard units' which act as basic matchers, rej
ecting patterns not belonging to the training classes.