A new bi-directional associative memory

  • Authors:
  • Roberto A. Vázquez;Humberto Sossa;Beatriz A. Garro

  • Affiliations:
  • Centro de Investigación en Computación – IPN, Ciudad de México, México;Centro de Investigación en Computación – IPN, Ciudad de México, México;Centro de Investigación en Computación – IPN, Ciudad de México, México

  • Venue:
  • MICAI'06 Proceedings of the 5th Mexican international conference on Artificial Intelligence
  • Year:
  • 2006

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Abstract

Hebbian hetero-associative learning is inherently asymmetric. Storing a forward association from pattern A to pattern B enables the recalling of pattern B given pattern A. This, in general, does not allow the recalling of pattern A given pattern B. The forward association between A and B will tend to be stronger than the backward association between B and A. In this paper it is described how the dynamical associative model proposed in [10] can be extended to create a bi-directional associative memory where forward association between A and B is equal to backward association between B and A. This implies that storing a forward association, from pattern A to pattern B, would enable the recalling of pattern B given pattern A and the recalling of pattern A given pattern B. We give some formal results that support the functioning of the proposal, and provide some examples were the proposal finds application.