Nonlinear classification by backprojection

A new method to construct a classification network, called the backprojection network, by learning from a given set of training exemplars is proposed. The method is derived from an analogy with the idea of image reconstruction by backprojection in computer-aided tomography. The backprojection network is able to correctly classify any distribution of training exemplars; can be incrementally constructed; has simple weights and low connectivity; and gives predictable generalization.<<ETX>>