Using Spatio-temporal Correlations to Learn Invariant Object Recognition

Neural Netw. 1996 Dec;9(9):1513-1519. doi: 10.1016/s0893-6080(96)00041-x.


A competitive network is described which learns to classify objects on the basis of temporal as well as spatial correlations. This is achieved by using a Hebb-like learning rule which is dependent upon prior as well as current neural activity. The rule is shown to be capable of outperforming a supervised rule on the cross validation test of an invariant character recognition task, given a relatively small training set. It is also shown to outperform the supervised version of Fukushima's Neocognitron ([Fukushima, 1980]), on a larger training set. Copyright 1996 Elsevier Science Ltd.