Statistical performance of outer-product associative memory models

Arthur F. Gmitro, Paul E. Keller, Gene R. Gindi

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


A figure of merit, the probability a bit is correct after update, is used to evaluate the performance of randomly coded outer-product associative memory models. Networks with bipolar binary states and nonzero diagonal connections are shown to yield the best performance with respect to this figure of merit. A surprising result is that an all-positive network, one with binary states and positive connections, is superior to a standard Hopfield style network with binary states and bipolar connections. A prescription for the optimal threshold point for the all-positive network is given.

Original languageEnglish (US)
Pages (from-to)1940-1952
Number of pages13
JournalApplied optics
Issue number10
StatePublished - May 15 1989

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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