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Neural Computation

Spring 1990, Vol. 2, No. 1, Pages 94-106
(doi: 10.1162/neco.1990.2.1.94)
© 1990 Massachusetts Institute of Technology
Pattern Segmentation in Associative Memory
Article PDF (668.46 KB)

The goal of this paper is to show how to modify associative memory such that it can discriminate several stored patterns in a composite input and represent them simultaneously. Segmention of patterns takes place in the temporal domain, components of one pattern becoming temporally correlated with each other and anticorrelated with the components of all other patterns. Correlations are created naturally by the usual associative connections. In our simulations, temporal patterns take the form of oscillatory bursts of activity. Model oscillators consist of pairs of local cell populations connected appropriately. Transition of activity from one pattern to another is induced by delayed self-inhibition or simply by noise.